Vintage Snowmobile Racing Priest Lake
Rules and Regulations
New rules for the 2020 race season have been put inbold and bigger font
General Rules Drivers
Must have tether attached when on sled.
Full face helmet required with goggles or face shield
Helmets to be worn while on snowmobile
Track run up stands required No lifting of sleds allowed
Upper body protection required (motocross style legal)
Knee and shin guards recommended
Neck braces recommended
High visible colors recommended for driver ORANGE requested
No alcohol in pits
​Gloves Required
Snowmobile General Rules
Any leaf spring sled 85 and older
Clutch cover required
Up to 1 inch depth lug depth
Clutches can be updated
Ski tips must be padded or Hoops
4 inch numbers on both side contrasting colors from sled
Hoods have to be on sleds
Traction devices allowed
Headlights taped or removed
Taillight recommended
Carbide ski runners allowed not to be over 1/4 inch and 5/8
inch from bottom of ski
Windshields can be removed
Brakes can be updated
Cleated Tracks allowed
Snow Flaps Required
Must be naturally aspirated
Must be snowmobile with 2 skis
No Sno-Scoots
Traction products can not be over 3/8 inch past track lugs
Carbides must be commercially available no longer then 14"
Carbides tip from bottom of ski no taller than 5/8 inch
Stock Classes
Skis and pipe must remain stock
Gas tank and seat can be replaced
Handlebars can be updated
Clutches can be updated
Air boxes can be removed
Original exhaust system
Carbs can be updated not to be larger than original size
Traction products and carbides allowed
Engine to remain stock and match chassis
Working taillight
Super Stock
Free Air sleds will run with liquids
Can update skis, gas tank, and seat
Internal mods allowed
No external mods to motor (intake concept to remain original)
Stock exhaust
Carbs can be updated
Clutches can be updated
Working taillight
Traction products and carbides allowed
Engine cylinders must match motor and chassis
Mod classes
Any 85 and older originally produced leaf spring sled with 85 and older motors
Solid front axle with non adjustable spindles
No cobra style skis
Mufflers not required
Working taillight
Any sled and engine combo allowed not to be larger than cc class entered
Open Mod "X" Class
Any 85 and older engine/chassis combo
Solid front axle with non adjustable spindles, with functioning leaf spring ski
No cobra stye skis
Working taillight
Any sled and engine combo 85 and older
120 Stock Class Governor adjustment & gear change allowed
120/200 Mod Class Engine modifications up to 200cc allowed