• 5-20 horsepower single or twin cylinder.
• Verticle or horizontal shaft.
• Must be lawnmower type engine.
• May be internally and externally modified.
• Must be 4-cycle engine.
• Exhaust must route downward or to the side of mower.

    2.STARTERS:

• Electric or pull start only. NO hand held gear drive starters, (like on go-karts and dragsters.)
• Battery be securely fastened. Battery terminals must be insulated with covers or heavy tape.

    3.GAS TANK AND FUEL SYSTEM:

• Gas tank must be securely mounted and reasonably protected.
• No nitrous oxide allowed.
• In line fuel shut off mandatory.
• No fueling a running engine.

    4.THROTTLES:

• Any type throttle may be used, twist grip, thumb throttle, squeeze grip, or foot pedal.
• Must operate freely and have operable return spring.
• No fixed throttles.

    5.SAFETY KILL SWITCH:

• Must have breakaway type, grounded safety switch.(TETHER yype switch is mandatory.) For example types found on boats, wave runners, quad runners.
• If an electric fuel pump is used, kill switch must disenguage electrical power to all circuits.

    6.TRANSMISSION / DRIVELINE:

• Driveline choice is open. (gearboxes, centrifugal clutches, torque converters, direct drive, solid rear axle.)

    7.BODY AND FRAME:

• Must use lawnmower frame. If stock frame is inadequate for racng, it may be reinforced or a new one built from steel of the same dimension and style.
• No aluminum frames.
• Wheelbase may be no longer than 60 inches (thats the length from axle to axle.)
• Width may be no wider than 38 inches (thats outside of tire to outside of tire.)
• Body must have lawnmower style hood and fenders. May be modified to fit frame. Hood must lock in place.
• All body parts must be mounted securely.
• The body must have contrasting numbers, one on each side and one on the rear.
• Must use lawnmower seat. Cannot be mounted lower than top of rear tires.

    8. TIRES AND WHEELS:

• Any style wheels may be used.
• They must mounted securely to the axles, and you must use turf tires.
• No ATV, snow hogs, or go-kart tires allowed.
• FRONT TIRES MUST HAVE TUBES.

    9. BRAKES:

• Mandatory and in working order.
• Must be upgraded from stock system.

    10. SUSPENSION:

• No shocks or springs allowed.
• Steering arms and tie rod ends must be 3/8 inch diameter minimum.
• You must use hime joints or large type ball joints.

    11.BUMPERS / MOWING DECKS:

• Front bumpers are allowed. May not exceed half the width of the front tires, and may not exceed more than 2 inches in front of the front tires.
• Rear bumper must not exceed the width of the rear tires, and may not exceed 2 inches behind the rear tires.
• Running boards or nerf bars are highly recomended, but cannot exceed the width of the tires.
• Mowing decks may be used in place of runnig boards, but must be securely fastened to the frame of the mower.
• An outside barrier on the running boards or mowing deck to keep your feet from slipping off is highly recomended, and will help control your body weight while cornering.