What is a Bucket? (The basics)
Buckets are commuter and non-competition bikes that are put on the race track and called F4 and F5.
Buckets have two engine capacity classes:
F4
2 stroke 55-100cc
2 stroke 55-125cc air cooled
4 stroke 55-150cc
F5
2 stroke 0-50cc
4 stroke 0-100cc air cooled
Engines must be derived from non-competition motorcycles.
Motocross, Road Racing, Enduro and Go Kart motors and transmission parts are not permitted. There shall be no restriction on the make, type or design of carburettor, ignition, exhaust, piston, cam, valve springs or cooling system except for class eligibility. All engines must be normally aspirated except F4 4 stroke engines of less than 100cc capacity, which may be turbo or supercharged. F4 2 stroke engines over 104cc are restricted to carburation equivalent to a single 24mm carburettor, F5 4 stroke engines over 53cc are restricted to carburation equivalent to a single 20mm carburettor.
Alcohol based fuel or fuel additives are prohibited.
Bikes must be silenced as per MNZ or local track rules (whichever is the lower level).
Bike Preparation:
You will need some duct tape, tie wire or electrical zip ties.
Tyres must be up to W.O.F. standard or Race Slicks.
Mirrors need to be removed.
Handlebar ends need to be plugged.
Lights and indicators to be removed.
Side stands, passenger footrests and centre stands need to be taken off.
Sump and oil plugs MUST be lockwired.
Water ONLY in radiators unless MNZ approved.
Bring some tools to prepare your bike.
Allow enough time to do this at the track or do it the night before and trailer your motorbike to the track.
Remember to check tyre pressures, chain tension, oil and water levels, brake fluid levels, brake pads and bring fuel.
Buckets must have:
• Plugged handlebars.
• Folding or nylon footpegs (kart track racing only)
• Anything that could mark the track must be nyloned over or bungs added to prevent them touching the track (kart track only). These must be very secure.
• Wired sump and oil plugs.
• Adequate front and rear brakes.
• No broken clutch and brake levers .
• Must remove side stands or wire them up and nylon protectors.
• Must have secure attachments for all parts of the bike.
• No dangerous attachments.
• Have no excessive leakage from fuel caps.
• Have all lights and mirrors removed.
• A catch tank for any fluids that might leak or overflow such as crankcase or gearbox breathers, float bowls etc.
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