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RULES

  1. Introduction
  2. MA Structure
  3. General Competition Rules And Making Rule Changes
  4. Jurisdiction s
    1. 1.1 Definitions
    2. 1.2 Purpose of Rules
    3. 1.3 Repeal of Current Gcrs
    4. 1.4 by Laws
  5. Administration s
    1. 2.1 The Controlling Bodies
    2. 2.2 Sports Development Levy
    3. 2.3 Sports Development Account
    4. 2.4 Officials
  6. Licensing s
    1. 3.1 Licensing Requirements
    2. 3.2 Licensing General
    3. 3.3 Licensing Seniors
    4. 3.4 Licensing Juniors
    5. 3.5 Licensing Entrants
    6. 3.6 Licensing Speedway Mechanics
    7. 3.7 Licence Issuing And Renewals
    8. 3.8 Junior Coaching Program
  7. Competitions s
    1. 4.1 Venues
    2. 4.2 The Promotion And Conduct of Competitions
    3. 4.3 MA Events
    4. 4.4 Protocols
  8. Alternative Forms of Competition s
    1. 5.1 Alternative Activities
    2. 5.2 Venues Alternative Activities
    3. 5.3 Permits : Alternative Activities
    4. 5.4 Supplementary Regulations Alternative Activities
    5. 5.5 Licensing of Competitors Alternative Activities
    6. 5.6 Technical Specifications Alternative Activities
  9. Recreational Motorcycle Activity s
    1. 6.1 Purpose
    2. 6.2 Recreational Activities
    3. 6.3 Controlling Bodies Recreational Activities
    4. 6.4 Officials Recreational Activities
    5. 6.5 Venues Recreational Activities
    6. 6.6 The Promotion And Conduct of Recreational Activity
    7. 6.7 Permits Recreational Activities
    8. 6.8 Entries
    9. 6.9 Licensing of Participants
  10. Offences Protests And Appeals s
    1. 7.1 Offences
    2. 7.2 Protests
    3. 7.3 Appellate Bodies
    4. 7.4 Appeals
  11. Judicial Committee Guidelines s
    1. 8.1 MA Hearing Guidelines
  12. National Personal Accident Insurance s
    1. 12.1 Summary of Policy Coverage
    2. 12.2 Capital Benefits
    3. 12.3 Weekly Benefits
    4. 12.4 Definitions
  13. Road Racing s
    1. SECTION 13 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 13 B: COMPETITION CLASSES
    3. SECTION 13C: COMPETITION RULES
    4. SECTION 13 D: TECHNICAL REGULATIONS
    5. SECTION 13 E: TECHNICAL REGULATIONS: SOLO CLASSES
    6. SECTION 13 F: TECHNICAL REGULATIONS: SIDECARS
    7. SECTION 13 G: TECHNICAL REGULATIONS: JUNIOR CLASSES
    8. SECTION 13 H: MINIMOTO
  14. Historic Road Racing s
    1. SECTION 14 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 14 B: COMPETITION CLASSES
    3. SECTION 14 C: COMPETITION RULES
    4. SECTION 14 D: TECHNICAL REGULATIONS: GENERAL
    5. SECTION 14E: TECHNICAL REGULATIONS: PERIOD
  15. Motocross And Supercross s
    1. SECTION 15 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 15 B: COMPETITION CLASSES
    3. SECTION 15 C: COMPETITION RULES
    4. SECTION 15 D: TECHNICAL REGULATIONS
  16. Classic Motocross And Dirt Track s
    1. SECTION 16 A: AUSTRALIAN CHAMPIONSHIPS
    2. Section 16 B Competition Classes
    3. SECTION 16 C: COMPETITION RULES
    4. SECTION 16 D TECHNICAL REGULATIONS
  17. Enduro And Reliability Trials s
    1. SECTION 17A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 17B: COMPETITION CLASSES
    3. SECTION 17C: COMPETITION RULES
    4. SECTION 17D: TECHNICAL REGULATIONS
    5. SECTION 17E: AUSTRALIAN FOUR-DAY ENDURO CHAMPIONSHIPS
  18. ATV s
    1. SECTION 18A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 18B: COMPETITION CLASSES
    3. SECTION 18C: COMPETITION RULES
    4. SECTION 18D: TECHNICAL REGULATIONS
  19. Speedway s
    1. SECTION 19A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 19B: AUSTRALIAN SPEEDWAY CHAMPIONSHIP
    3. SECTION 19C: AUSTRALIAN TEAM CHAMPIONSHIPS
    4. SECTION 19D: COMPETITION RULES
    5. SECTION 19E: TECHNICAL REGULATIONS
  20. Dirt Track s
    1. SECTION 20A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 20B: COMPETITION CLASSES
    3. SECTION 20C: COMPETITION RULES
    4. SECTION 20D: TECHNICAL REGULATIONS
  21. Track s
    1. SECTION 21A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 21B: COMPETITION CLASSES
    3. SECTION 21C: COMPETITION RULES
    4. SECTION 21D: TECHNICAL REGULATIONS
  22. Supermoto s
    1. SECTION 22A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 22B: COMPETITION CLASSES
    3. Section 22c Competition Rules
    4. SECTION 22D: TECHNICAL REGULATIONS
  23. Trial s
    1. SECTION 23A: AUSTRALIAN CHAMPIONSHIP
    2. SECTION 23B: COMPETITION CLASSES
    3. SECTION 23C: COMPETITION RULES
    4. SECTION 23D: TECHNICAL REGULATIONS
    5. SECTION 23E: CLASS TECHNICAL REGULATIONS
  24. Minikhana s
    1. SECTION 24A: MINIKHANA CLASSES
    2. SECTION 24B: COMPETITION RULES
    3. SECTION 24C: TECHNICAL REGULATIONS
    4. SECTION 24D: MINIKHANA COURSES
  25. Policies s
    1. 25.1 Member Protection Policy
    2. 25.2 Anti-doping Policy
    3. 25.3 Anti Match-fixing Policy
    4. 25.4 Privacy Regulation
    5. 25.5 Occupational Health and Safety Policy
    6. 25.6 Environmental Sustainability Policy
    7. 25.7 National Team Selection Policy

Rules

SECTION 18D: TECHNICAL REGULATIONS


18.12 SOUND EMISSIONS

18.12.0.1 Sound testing must be carried out at all permitted events however it is not mandatory to test all machines

18.12.1 Specifications

18.12.1.1 Sound emissions are set out in the tables below:

30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Speedway 95
Dirt Track & Track 95
Record Attempts No limit

2 Metre Max method

DISCIPLINE LIMIT dB(A)
Motocross non Australian Championships 112 with a 4dB(A) allowance
Motocross Australian Championships 112 with a 2dB(A) allowance
Supermoto 112 with a 4dB(A) allowance
Enduro & Reliability Trials 112 with a 4dB(A) allowance
18.12.1.2 Where government regulations or planning orders exist in relation to lower sound emissions or where a venue has lower sound emission requirements as part of the hire contract, the sound emission required will prevail over GCR 18.2.1.1.

18.12.2 Sound control during competition

18.12.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course and other Technical Officials in order that a suitable test site and testing policy can be agreed.
18.12.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of Course or SCO.

18.12.3 Use of sound level meters

18.12.3.1 Sound testing apparatus must:

  1. Comply with international standard IEC 651, Type 1 or Type 2.
  2. Include a compatible calibrator, which must be used immediately before testing begins and always just prior to a re-test if a disciplinary sanction may be imposed.
18.12.3.2 Sound testing apparatus must be set to:

  1. ‘Fast response’
  2. ‘A’ weighted,
  3. Select range High 80~130 dB,
  4. Activate the function MAX MIN – set on MAX,
18.12.3.3 ’30 Meter ride by’ test

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 meters from the edge of the track at a high speed point.
18.12.3.4 ‘2 Metre Max’ Set up of the sound meter and the motorcycle:

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, at the rear of the motorcycle.
  2. For the place and position of the motorcycle, ensure that there are no solid obstacles within a 10 meter radius of the microphone.
  3. The sound meter will be positioned at a distance of two metre behind the motorcycle, with an angle of 45° away from the centerline, on the exhaust side and at a height of 1.35 metre above the ground, with the sound meter level.
  4. The two metre distance is measured from the point where the centre of rear tyre touches the ground.
  5. It is preferred that the tests are conducted on soft ground, to prevent reverberation, i.e. grass or fine gravel.
  6. In other than moderate wind, machines should face forward in to the wind direction.
  7. The ambient sound level must remain lower than 100 dB(A).
18.12.3.5 ‘2 Metre Max’ Positioning of the motorcycle:
The reference points:

  1. For a motorcycle: the contact point of the rear wheel on the ground.
  2. For motorcycles fitted with two exhaust outputs, the measurement will be made on the side of the air intake. If a central positioned air intake is used, both sides will be tested.
  3. For Sidecars: the contact point of the side wheel on the ground.
  4. For ATV vehicles: the vertical line to the ground from the centre point of the rear axle.
  5. For ATV vehicles with exhaust outlet moved from the median axis, the measurement will be made on the offset side. To make repetitive measurements, all motorcycles can be positioned into a small frame fixed on the ground.
18.12.3.6 ‘2 Metre Max’ method:

  1. The measurement is made with the motorcycle on its wheels, with a hot engine.
  2. During a sound test, machines not equipped with a gear box neutral must be placed on a stand.
  3. The SCO should stand beside the motorcycles, opposite the microphone and not screen or stand between the bike and the microphone. An assistant, placed on the left side of the motorcycle, shall disengage the clutch.
  4. The SCO shall open the throttle as fast as possible until full open throttle (instantly, within 0.3 seconds) and keep at max engine ‘rpm’ for at least one second. To end, the SCO will release the throttle quickly.
  5. If the result exceeds the limit, including ‘after fire’, the Inspector shall test the motorcycle a maximum of two more times.
  6. For motorcycles equipped with an engine rpm limiter, opening the throttle will be made – instantly, within 0.3 seconds – and kept open until at least one second has evolved and/or when there is an audible sign of over revving the engine.
  7. For motorcycles without an engine ‘rpm’ limiter, the opening of the throttle will have to be lower than two seconds and/or when there is an audible sign of over-revving the engine.
  8. If the engine tends to suffocate, close the throttle slightly and re-open the throttle.
  9. If detonations appear, the measurement must be started again.
  10. The numbers obtained from the test shall not be rounded down.
  11. For the sound level measurement, the handling of the throttle is limited only to the SCO, who shall open the throttle himself in order to minimize the influence by another operator (for that, it is helpful to have the microphone equipped with an extension cable to the sound meter).
18.12.3.7 Tests shall not take place in the rain

18.12.4 Machine testing

18.12.4.1 If a machine fails, it can be represented for re-testing.
18.12.4.2 No person may compete in any event on a machine whose noise emissions exceed the prescribed levels.
18.12.4.3 A machine which does not comply with the sound limits can be presented several times.

18.13 FUEL

18.13.1 General

18.13.2 Warning

18.13.2.1 Fuels and lubricants are highly specialised substances and participants must be aware they may contain substances that are extremely dangerous to human health if misused, inhaled or allowed to contact skin.
18.13.2.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
18.13.2.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
18.13.2.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

18.13.3 Fuel Testing

18.13.3.1 For any event, meeting or series, the Relevant Controlling Body may direct that no fuels other than fuels of prescribed specifications and from a prescribed source may be used.

  1. Tests to ensure that only prescribed fuels are used in an event, meeting or series may be administered at any time and place during the course of the same,
  2. The Clerk of Course, Race Director or Chief Scrutineer may direct the administration of fuel tests.
18.13.3.2 Fuel tests must comply with the following procedures:

  1. All containers for holding samples must be clean and constructed of robust non-reactive impermeable material, must be sealable, and must have provision for identification,
  2. Equipment used for the extraction of fuel from machines must be clean and constructed of fuel non-reactive material,
  3. All samples must be divided into two lots (Sample A and Sample B) of not less than 5ml each, which must be placed in separate containers,
  4. Once samples are placed in containers, the containers must immediately be sealed and identified by reference to the machine from which the sample was taken. This information must be entered on a fuel sample certificate which must certify the date, place and time of taking the sample, the identity of the machine from which the sample was taken and the identity of the rider,
  5. Both samples must remain in the control of the official who administered the test.
  6. The rider or the representative must sign the fuel sample certificate acknowledging samples have been taken and are sealed,
  7. All samples held by the official must be delivered as soon as practicable after the competition to the Relevant Controlling Body which must deliver the Sample A as soon as practicable to a laboratory approved by MA where they must be tested for content and quality in accordance with standard scientific procedures,
  8. The Relevant Controlling Body must as soon as practicable after receipt of the results notify the rider or rider’s team representative and MA,
  9. If the rider is dissatisfied with the test result of Sample A, they may request Sample B be tested at an MA approved laboratory in their presence.

18.13.4 Refueling

18.13.4.1 During refueling, each machine must be stationary with the engine stopped.
18.13.4.2 Refueling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
18.13.4.3 Smoking is strictly prohibited in areas where refueling is permitted.
18.13.4.4 Riders are liable for exclusion from an event for failing to adhere to General Competition Rule 18.13.4.3, and are responsible for the actions of their mechanics and support team members.

18.13.5 Homologation of Fuel

18.13.5.1 Unleaded fuel produced by an oil company for sale in the Australian general transport fuel market through retail petrol pumps in at least five states does not have to be homologated. For the avoidance of doubt this means the fuel must be available for sale on demand from a roadside bowser outlet at each of at least five separate service stations in each of at least five Australian states or territories.
18.13.5.2 Organisations seeking homologation of fuel must provide MA with:

  1. Two one-litre sealed containers of the fuel for analysis,
  2. Details of the fuels characteristics,
  3. The distribution network,
  4. The price structure,
  5. A homologation fee of $2500 in the first year and $2000 per year thereafter.
18.13.5.3 Fuels approved under this General Competition Rule will be published at www.ma.org.au.

18.13.6 Fuel: ATVs

18.13.6.1 Fuel for all machines must:

  1. Be Unleaded, and
  2. Be no more than 100 RON, and
  3. Contain no additives other than those added at the point of manufacture except for:
  4. Lubricating oil for 2-stroke engines
  5. Upper cylinder lubricant for 4-stroke engines,
  6. Be readily available from retail petrol pumps within Australia, or
  7. Be a brand of fuel homologated by MA that is compatible with the Fuel Quality Standards Act 2000

18.14 ENGINES

18.14.1 Reciprocating Engines

18.14.1.1 Formulae for Calculation of Capacities and Classes

Cubic capacity = (D2 x 3.1416 x C x N)
4

Where:

D = Bore in centimetres,
C = stroke in centimetres,
N = Number of cylinders.

18.14.2 Superchargers and Turbochargers

18.14.2.1 Superchargers and turbochargers must not be fitted to any ATV in any competition.

18.14.3 Engines: ATVs

18.14.3.1 Capacities
18.14.3.2 The maximum engine capacity for a 2-stroke engine ATV shall not exceed 550cc, and be no more than two cylinders.
18.14.3.3 The maximum capacity for a 4-stroke engine ATV shall not exceed 700cc for Stadium Classes, Dirt Track Classes, Motocross and Club Level Racing and 850 930cc for Enduro/Cross Country, Desert Classes and Sand Drags classes and be no more than two cylinders.
18.14.3.4 The actual engine capacity of a machine competing in a capacity class is not to exceed the prescribed capacity for that class by more than five percent with the exception of the 450cc 4-stroke class and the 350cc 2-stroke class where no engine displacement increase tolerance is allowed.
18.14.3.5 ‘Pro’ class is capacity limited to 450cc 4-stroke or 350cc 2-stroke with no oversizing tolerance.
18.14.3.6 Where in Junior competition, the words OEM standard or Limited are used, all ATVs must be OEM machines with no modifications. OEM type engine replacement is accepted (or other standard parts). Any engine or part must be a direct bolt-in replacement with identical engine mounting points and using standard OEM frame engine mounts.
18.14.3.7 Where ‘Limited’ is used in Junior competition, all machines must be built to have a maximum unrestricted speed of 48 km/h or less. All machines that comply with SVIA standard, category Y-10+ATV or Y-12+ATV meet this requirement. All ATVs must be standard ATVs built and strictly be in OEM specification as per GCR 18.14.3.6.
18.14.3.8 Where ‘Comp’ is used in Junior competition, modifications are allowed. Eligible machines meeting the specified engine displacements of the class (with or without modifications) may include, OEM ‘race ready’ type machines through to Limited machines modified for competition use.
18.14.3.9 All Junior ATVs up to and including 90cc 2-stroke and 125cc 4-stroke Limited and Comp classes must retain OEM engine cases and frames, see GCR 18.14.3.6 for exceptions.
18.14.3.10 NOTE: Junior ATV racing classes 200cc 2-stroke to 300cc 4-stroke will undergo a machine eligibility and capacity review in 2014, e.g. OEM / Hybrid / non-hybrid 250cc, etc. Junior 200cc 2-stroke and 250cc 4-stroke Comp classes may fit a 200cc 2-stroke or 250cc 4-stroke engine from an off-road motorcycle of the same manufacturer to a larger capacity chassis ATV; only air-cooled Yamaha Raptor 250 and Honda TRX300 machines may increase standard engine displacement to 300cc +5% tolerance.

18.15 FRAMES AND PARTS

18.15.1 General

18.15.1.1 An ATV must have:

  1. Four wheels,
  2. A wheel at each corner of the machine,
  3. The front wheels which are used for steering and the rear wheels for driving,
  4. A maximum overall width including the rear tyres of 1300mm. The ATV must freely push through two vertical fixed objects (poles) spaced at 1300mm.
  5. A seat for one (1) person,
  6. The rider straddling the seat,
  7. A frame [Nerf Bar] between the front and rear wheels which must:
    1. Be of closed loop design,
    2. Not extend beyond a point of the widest dimensions of the vehicle, measured with a straight edge touching the outside of the front and rear tyres,
    3. Be constructed to prevent the rider’s feet from going below the bars (material webbing is acceptable),
    4. Be bolted or welded to the frame,
    5. Be close enough to the front and rear wheels to prevent locking together of competitors’ machines,
    6. Have no sharp, protruding tubing either open ended or capped,
    7. Have heel guards which are compulsory on all ATV machines.
  8. A self-closing throttle,
  9. An engine cut-out switch, of lanyard type attached to the rider’s body,
  10. Effective brakes on all wheels,
  11. Handlebars, rubber hand grips, handlebar levers and number plates,
  12. No sharp or protruding extremities,
  13. Glass, mirrors and headlights removed.
  14. For MX, Speedway, Flat track, Track and Motard style racing, a front-mounted bumper bar which must comply with specifications listed in GCR 18.15.1.1: g), i), iv), vi), l).
18.15.1.2 Mudguards which:

  1. Must be fitted over the rear wheels,
  2. May be fitted over the front wheels.
18.15.1.3 200cc 2-stroke and 300cc 4-stroke Comp classes may fit a 200cc 2-stroke or 250cc 4-stroke engine from an off-road motorcycle of the same manufacturer to a larger chassis ATV (limited to 250cc 4-stroke for 2014).

Note: From 1st January 2015, the capacity limit for all junior ATV machines will be 200cc 2-stroke and 250cc 4-stroke, plus five percent tolerance.

18.15.2 Tyres: ATVs

18.15.2.1 Rear tyres may be prescribed in the supplementary regulations.

SECTION 18D: TECHNICAL REGULATIONS


18.12 SOUND EMISSIONS

18.12.0.1 Sound testing must be carried out at all permitted events however it is not mandatory to test all machines

18.12.1 Specifications

18.12.1.1 Sound emissions are set out in the tables below:

30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Speedway 95
Dirt Track & Track 95
Record Attempts No limit

2 Metre Max method

DISCIPLINE LIMIT dB(A)
Motocross non Australian Championships 112 with a 4dB(A) allowance
Motocross Australian Championships 112 with a 2dB(A) allowance
Supermoto 112 with a 4dB(A) allowance
Enduro & Reliability Trials 112 with a 4dB(A) allowance
18.12.1.2 Where government regulations or planning orders exist in relation to lower sound emissions or where a venue has lower sound emission requirements as part of the hire contract, the sound emission required will prevail over GCR 18.2.1.1.

18.12.2 Sound control during competition

18.12.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course and other Technical Officials in order that a suitable test site and testing policy can be agreed.
18.12.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of Course or SCO.

18.12.3 Use of sound level meters

18.12.3.1 Sound testing apparatus must:

  1. Comply with international standard IEC 651, Type 1 or Type 2.
  2. Include a compatible calibrator, which must be used immediately before testing begins and always just prior to a re-test if a disciplinary sanction may be imposed.
18.12.3.2 Sound testing apparatus must be set to:

  1. ‘Fast response’
  2. ‘A’ weighted,
  3. Select range High 80~130 dB,
  4. Activate the function MAX MIN – set on MAX,
18.12.3.3 ’30 Meter ride by’ test

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 meters from the edge of the track at a high speed point.
18.12.3.4 ‘2 Metre Max’ Set up of the sound meter and the motorcycle:

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, at the rear of the motorcycle.
  2. For the place and position of the motorcycle, ensure that there are no solid obstacles within a 10 meter radius of the microphone.
  3. The sound meter will be positioned at a distance of two metre behind the motorcycle, with an angle of 45° away from the centerline, on the exhaust side and at a height of 1.35 metre above the ground, with the sound meter level.
  4. The two metre distance is measured from the point where the centre of rear tyre touches the ground.
  5. It is preferred that the tests are conducted on soft ground, to prevent reverberation, i.e. grass or fine gravel.
  6. In other than moderate wind, machines should face forward in to the wind direction.
  7. The ambient sound level must remain lower than 100 dB(A).
18.12.3.5 ‘2 Metre Max’ Positioning of the motorcycle:
The reference points:

  1. For a motorcycle: the contact point of the rear wheel on the ground.
  2. For motorcycles fitted with two exhaust outputs, the measurement will be made on the side of the air intake. If a central positioned air intake is used, both sides will be tested.
  3. For Sidecars: the contact point of the side wheel on the ground.
  4. For ATV vehicles: the vertical line to the ground from the centre point of the rear axle.
  5. For ATV vehicles with exhaust outlet moved from the median axis, the measurement will be made on the offset side. To make repetitive measurements, all motorcycles can be positioned into a small frame fixed on the ground.
18.12.3.6 ‘2 Metre Max’ method:

  1. The measurement is made with the motorcycle on its wheels, with a hot engine.
  2. During a sound test, machines not equipped with a gear box neutral must be placed on a stand.
  3. The SCO should stand beside the motorcycles, opposite the microphone and not screen or stand between the bike and the microphone. An assistant, placed on the left side of the motorcycle, shall disengage the clutch.
  4. The SCO shall open the throttle as fast as possible until full open throttle (instantly, within 0.3 seconds) and keep at max engine ‘rpm’ for at least one second. To end, the SCO will release the throttle quickly.
  5. If the result exceeds the limit, including ‘after fire’, the Inspector shall test the motorcycle a maximum of two more times.
  6. For motorcycles equipped with an engine rpm limiter, opening the throttle will be made – instantly, within 0.3 seconds – and kept open until at least one second has evolved and/or when there is an audible sign of over revving the engine.
  7. For motorcycles without an engine ‘rpm’ limiter, the opening of the throttle will have to be lower than two seconds and/or when there is an audible sign of over-revving the engine.
  8. If the engine tends to suffocate, close the throttle slightly and re-open the throttle.
  9. If detonations appear, the measurement must be started again.
  10. The numbers obtained from the test shall not be rounded down.
  11. For the sound level measurement, the handling of the throttle is limited only to the SCO, who shall open the throttle himself in order to minimize the influence by another operator (for that, it is helpful to have the microphone equipped with an extension cable to the sound meter).
18.12.3.7 Tests shall not take place in the rain

18.12.4 Machine testing

18.12.4.1 If a machine fails, it can be represented for re-testing.
18.12.4.2 No person may compete in any event on a machine whose noise emissions exceed the prescribed levels.
18.12.4.3 A machine which does not comply with the sound limits can be presented several times.

18.13 FUEL

18.13.1 General

18.13.2 Warning

18.13.2.1 Fuels and lubricants are highly specialised substances and participants must be aware they may contain substances that are extremely dangerous to human health if misused, inhaled or allowed to contact skin.
18.13.2.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
18.13.2.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
18.13.2.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

18.13.3 Fuel Testing

18.13.3.1 For any event, meeting or series, the Relevant Controlling Body may direct that no fuels other than fuels of prescribed specifications and from a prescribed source may be used.

  1. Tests to ensure that only prescribed fuels are used in an event, meeting or series may be administered at any time and place during the course of the same,
  2. The Clerk of Course, Race Director or Chief Scrutineer may direct the administration of fuel tests.
18.13.3.2 Fuel tests must comply with the following procedures:

  1. All containers for holding samples must be clean and constructed of robust non-reactive impermeable material, must be sealable, and must have provision for identification,
  2. Equipment used for the extraction of fuel from machines must be clean and constructed of fuel non-reactive material,
  3. All samples must be divided into two lots (Sample A and Sample B) of not less than 5ml each, which must be placed in separate containers,
  4. Once samples are placed in containers, the containers must immediately be sealed and identified by reference to the machine from which the sample was taken. This information must be entered on a fuel sample certificate which must certify the date, place and time of taking the sample, the identity of the machine from which the sample was taken and the identity of the rider,
  5. Both samples must remain in the control of the official who administered the test.
  6. The rider or the representative must sign the fuel sample certificate acknowledging samples have been taken and are sealed,
  7. All samples held by the official must be delivered as soon as practicable after the competition to the Relevant Controlling Body which must deliver the Sample A as soon as practicable to a laboratory approved by MA where they must be tested for content and quality in accordance with standard scientific procedures,
  8. The Relevant Controlling Body must as soon as practicable after receipt of the results notify the rider or rider’s team representative and MA,
  9. If the rider is dissatisfied with the test result of Sample A, they may request Sample B be tested at an MA approved laboratory in their presence.

18.13.4 Refueling

18.13.4.1 During refueling, each machine must be stationary with the engine stopped.
18.13.4.2 Refueling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
18.13.4.3 Smoking is strictly prohibited in areas where refueling is permitted.
18.13.4.4 Riders are liable for exclusion from an event for failing to adhere to General Competition Rule 18.13.4.3, and are responsible for the actions of their mechanics and support team members.

18.13.5 Homologation of Fuel

18.13.5.1 Unleaded fuel produced by an oil company for sale in the Australian general transport fuel market through retail petrol pumps in at least five states does not have to be homologated. For the avoidance of doubt this means the fuel must be available for sale on demand from a roadside bowser outlet at each of at least five separate service stations in each of at least five Australian states or territories.
18.13.5.2 Organisations seeking homologation of fuel must provide MA with:

  1. Two one-litre sealed containers of the fuel for analysis,
  2. Details of the fuels characteristics,
  3. The distribution network,
  4. The price structure,
  5. A homologation fee of $2500 in the first year and $2000 per year thereafter.
18.13.5.3 Fuels approved under this General Competition Rule will be published at www.ma.org.au.

18.13.6 Fuel: ATVs

18.13.6.1 Fuel for all machines must:

  1. Be Unleaded, and
  2. Be no more than 100 RON, and
  3. Contain no additives other than those added at the point of manufacture except for:
  4. Lubricating oil for 2-stroke engines
  5. Upper cylinder lubricant for 4-stroke engines,
  6. Be readily available from retail petrol pumps within Australia, or
  7. Be a brand of fuel homologated by MA that is compatible with the Fuel Quality Standards Act 2000

18.14 ENGINES

18.14.1 Reciprocating Engines

18.14.1.1 Formulae for Calculation of Capacities and Classes

Cubic capacity = (D2 x 3.1416 x C x N)
4

Where:

D = Bore in centimetres,
C = stroke in centimetres,
N = Number of cylinders.

18.14.2 Superchargers and Turbochargers

18.14.2.1 Superchargers and turbochargers must not be fitted to any ATV in any competition.

18.14.3 Engines: ATVs

18.14.3.1 Capacities
18.14.3.2 The maximum engine capacity for a 2-stroke engine ATV shall not exceed 550cc, and be no more than two cylinders.
18.14.3.3 The maximum capacity for a 4-stroke engine ATV shall not exceed 700cc for Stadium Classes, Dirt Track Classes, Motocross and Club Level Racing and 850 930cc for Enduro/Cross Country, Desert Classes and Sand Drags classes and be no more than two cylinders.
18.14.3.4 The actual engine capacity of a machine competing in a capacity class is not to exceed the prescribed capacity for that class by more than five percent with the exception of the 450cc 4-stroke class and the 350cc 2-stroke class where no engine displacement increase tolerance is allowed.
18.14.3.5 ‘Pro’ class is capacity limited to 450cc 4-stroke or 350cc 2-stroke with no oversizing tolerance.
18.14.3.6 Where in Junior competition, the words OEM standard or Limited are used, all ATVs must be OEM machines with no modifications. OEM type engine replacement is accepted (or other standard parts). Any engine or part must be a direct bolt-in replacement with identical engine mounting points and using standard OEM frame engine mounts.
18.14.3.7 Where ‘Limited’ is used in Junior competition, all machines must be built to have a maximum unrestricted speed of 48 km/h or less. All machines that comply with SVIA standard, category Y-10+ATV or Y-12+ATV meet this requirement. All ATVs must be standard ATVs built and strictly be in OEM specification as per GCR 18.14.3.6.
18.14.3.8 Where ‘Comp’ is used in Junior competition, modifications are allowed. Eligible machines meeting the specified engine displacements of the class (with or without modifications) may include, OEM ‘race ready’ type machines through to Limited machines modified for competition use.
18.14.3.9 All Junior ATVs up to and including 90cc 2-stroke and 125cc 4-stroke Limited and Comp classes must retain OEM engine cases and frames, see GCR 18.14.3.6 for exceptions.
18.14.3.10 NOTE: Junior ATV racing classes 200cc 2-stroke to 300cc 4-stroke will undergo a machine eligibility and capacity review in 2014, e.g. OEM / Hybrid / non-hybrid 250cc, etc. Junior 200cc 2-stroke and 250cc 4-stroke Comp classes may fit a 200cc 2-stroke or 250cc 4-stroke engine from an off-road motorcycle of the same manufacturer to a larger capacity chassis ATV; only air-cooled Yamaha Raptor 250 and Honda TRX300 machines may increase standard engine displacement to 300cc +5% tolerance.

18.15 FRAMES AND PARTS

18.15.1 General

18.15.1.1 An ATV must have:

  1. Four wheels,
  2. A wheel at each corner of the machine,
  3. The front wheels which are used for steering and the rear wheels for driving,
  4. A maximum overall width including the rear tyres of 1300mm. The ATV must freely push through two vertical fixed objects (poles) spaced at 1300mm.
  5. A seat for one (1) person,
  6. The rider straddling the seat,
  7. A frame [Nerf Bar] between the front and rear wheels which must:
    1. Be of closed loop design,
    2. Not extend beyond a point of the widest dimensions of the vehicle, measured with a straight edge touching the outside of the front and rear tyres,
    3. Be constructed to prevent the rider’s feet from going below the bars (material webbing is acceptable),
    4. Be bolted or welded to the frame,
    5. Be close enough to the front and rear wheels to prevent locking together of competitors’ machines,
    6. Have no sharp, protruding tubing either open ended or capped,
    7. Have heel guards which are compulsory on all ATV machines.
  8. A self-closing throttle,
  9. An engine cut-out switch, of lanyard type attached to the rider’s body,
  10. Effective brakes on all wheels,
  11. Handlebars, rubber hand grips, handlebar levers and number plates,
  12. No sharp or protruding extremities,
  13. Glass, mirrors and headlights removed.
  14. For MX, Speedway, Flat track, Track and Motard style racing, a front-mounted bumper bar which must comply with specifications listed in GCR 18.15.1.1: g), i), iv), vi), l).
18.15.1.2 Mudguards which:

  1. Must be fitted over the rear wheels,
  2. May be fitted over the front wheels.
18.15.1.3 200cc 2-stroke and 300cc 4-stroke Comp classes may fit a 200cc 2-stroke or 250cc 4-stroke engine from an off-road motorcycle of the same manufacturer to a larger chassis ATV (limited to 250cc 4-stroke for 2014).

Note: From 1st January 2015, the capacity limit for all junior ATV machines will be 200cc 2-stroke and 250cc 4-stroke, plus five percent tolerance.

18.15.2 Tyres: ATVs

18.15.2.1 Rear tyres may be prescribed in the supplementary regulations.