25 lap race 

 

Engine must be an option for that brand

HD or equivalent size diaphragm carb

Carb adapters allowed, but only to increase size of HR or smaller carb to HD carb – NO REED VALVE MOTORS ALLOWED

Stock can type exhaust or equivalent

Suspension as provided by manufacturer

Any legal ski allowed

Any primary (drive) clutch allowed but secondary (driven) clutch must remain stock for brand – no rollers

Brakes may be upgraded

Handlebars may be replace or altered for comfort

Three (3) maximum ski spreader on each side

96 studs allowed ¾ inch

 

 25 lap race

Snowmobiles built 1975 or earlier can be 1976 model year if built in 1975

Must be 18 years old to race

Must wear approved snell helmet

Must wear approved chest protection (tek vest)

Must have 144 sq inches of race orange on front and back of jacket

Must have working tether at all times (will be enforced)

Must have working tail light at start of race (does not have to work off motor)

Must have warm up stand with back and sides

Must have rear sno flap at all times

When refueling you must shut off motor(at all races)

No changing of motors during race

Max 5 drivers per team

Must have fire extinguisher in pits at all times

Any stock OEM fuel tank ok

Qualifying will determine starting spot

Snowmobiles built 1975 or earlier can be 1976 model year if built in 1975

Must have unaltered leaf spring front end (3” ski spreaders ok)

No widening of front ski spindle frames

You may tilt steering post but must remain in stock location at bulkhead. May alter handle bars and seat for driver comfort

Any OEM rear suspension allowed Max travel of 6” measured from swing arm to suspension stops with sled off the ground. No coupling devices on rear arm must have stock suspension stops.

No altering of tunnel of any kind

 

350cc or less single cylinder naturally aspirated engine (370 Sachs ok jmax overbore .040)

Tuned pipe is ok on non reed motors

All exhaust must exit bottom of bulkhead (no side exit of any kind)

Must have working silencer (will be checked)

Any size diaphragm carb may be used or 38mm max. VM38 mikuni round slide carb is legal must be stock bore

Engines must be 1975 or older model

Reed motors MUST have stock OEM exhaust

 

Metal or plastic skis ok (all skis must be wrapped to 1” diameter on ski loops)

5/8” max runner height

6” steering carbide max. 1 runner only must be in center of ski

Carbide no sharper than 60 degrees

 

Any stock primary clutch 1975 or older allowed or 94c, 102c or p-85 clutch allowed stock

Any secondary clutch allowed NO roller clutches of any kind

 

Molded rubber only, any size, any year, any kind of cleat and up to 96 studs allowed

 

Race director has final say on all protests you have 15 min to protest a team after the race. You must state your protest to the race director and produce $100.00 cash, if the protested team was determined legal they will receive the $100.00, if they are determined illegal they will be disqualified and you will receive your $100.00 back