MASTERS PRO CLASS—(45 years of age and older)

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IN STOCK AND STOCK BASED CLASSES, NO CHANGES OR MODIFICATIONS ALLOWED UNLESS SPECIFICALLY ALLOWED BY THESE RULES.  IF THESE RULES DO NOT SPECIFICALLY ALLOW A CHANGE OR MODIFICATION, THEN IT MUST BE ASSUMED THAT THE CHANGE OR MODIFICATION IS NOT ALLOWED.

MASTERS PRO CLASS

(45 years of age and older drivers)

 

SNOWMOBILE

●         Must be a 1973 or Older chassis with a 1973 or Older motor

May be a twin cylinder chassis without a jackshaft and cannot be a factory race chassis.

DRIVERS

●         Driver must be 45 years of age or older.

 MOTOR REGULATIONS

●         Clutch – you may use any primary clutch

●         Carb –you may use any type or brand          

●         Exhaust & Muffler – Original or stock replacement (Must be a Can muffler) it may be reinforced.  No Tuners and no cutting the muffler open.

●         You can modify anything inside the motor (no tear downs).

 CHASSIS REGULATIONS

●         1973 & OLDER chassis but may use 1976 and older suspensions, chain cases, clutches and aftermarket shocks.

●         Skis – original or stock replacement.  No ski skins.   Carbide runners and spreaders are allowed.  You may use different manufacturers’ skis but, no aluminum and no aftermarket.

●         Snow flaps must touch ice/snow when rider is sitting.

●         Fuel tanks – original or of same size.

●         Hood – need not be original.

●         8” visible numbers on each side of hood, these numbers are used for lap counting purposes.  IF THESE NUMBERS CAN NOT BE READ YOU MAY NOT BE COUNTED.

●         You may add a hydraulic brake system in the original brake location.

●         You may replace the secondary clutch with different manufacturers. 

 TRACK

●         You may use any track that you can find that will fit.

●         You may use a rubber track instead of a cleated or vice versa.  No aluminum cleats.

●         Studs should measure 3/8” above the track, or as close as possible.

 YOU MAY:

●         Change gear ratio.

●         Change clutch weights and springs.

●         Change Seat / Handle Bars / Running Boards for driver comfort.

●         Use Ice Scratchers for your slide suspension.