Class rules

 
 
Kitty cat
120 Stock

 

 

 

2-4 years old no mods allowed

                        WESTMICHIGANSNO-X 2018-19 SEASON RULES

Racers must wear high vis orange helmet and high vis vest

Class rules are put in place to keep a safe race environment. Rules at race officials discretion.  All participants must be concerned with safety and be familiar with these rules.

No arguing will be tolerated and can end in race day elimination with no refund. 

Westmichiganx can not guarantee safety even when the rules are enforced.  Each racer is responsible to check facilities and condition of track and must assume the risk of racing.

Any racer under 18 must have waiver signed with adult, All racer must have waivers on file with Westmichigansno-x prior to day.

All racers in any class will be required to have a snowcross style tekvest. (no plastic)

All racers must were goggles or full faced helmets

All sleds must have working tether

Rear snowflap must be intact and touch ground on snocross sleds

stock class will be broke down into 2 groups 4-7 and 8-12 years old

4 -12 years old All parts must be purchased no home made parts Only mods allowed

-Governor bypass spring

-Running board kits (grips)

-Rear idler wheel kits (must be snowmobile wheels)

-Handle bar risers

-stock gears 10 front 42 rear

Factory drivers and Factory skis(older ski doos can put new ski doo skis on if metal)

Track clips on every window

Stock motor from factory

No studs or screws

Mod 120
Briggs 206

5-12 years old No home made parts Only mods allowed are as followed

Must be stock factory motor

Any 120 chassis mods(running boards, handle bar risers)

Any suspension Mods( shocks, rear wheels)

Any steering mods(must be to recs motors specs for width)

Any gear ratio, 35 chain, clutch(no belt drives)

Any 120 exhaust must exit out original hole

Factory carb with adjustable main jet

No motor mods must be stock internals(cam, spring, valves, pistons)

5 tooth track drivers and track clips allowed

Any 120 ski (max 5" carbides)

No studs or ice screws

Factory spec engine( can remove governor gear)

Track clips on every window

 

 

 

6-13 years old Briggs sealed (with clip) motor All parts must be purchased no home made

Any 120 chassis, suspension, or steering mods

Chain drive no belts,5 tooth track drivers,track clips Gear ratio of 2.60-2.90

any 120 exhaust, max 5" carbide

Factory carb any jetting, no studs ice screws are allowed in between track windows

No aftermarket drive axel bearings 

No six tooth track drivers

No studs or ice screws

Track clips on every window

120 outlaw
200cc snoscoot

 

 

 

7-13 years old Any motor, any suspension, any steering mods, Belt drives are allowed

no studs or ice screws, 120 chassis hood must close and exhaust out bottom of belly pan, max 5" carbides, any skis must be 120 platform

200 snoscoots can run in outlaw class in stock form

Sled must be safe 

7-12 years old Must be 100% stock motor No engine mods

Govenor must be in tack factory carb with no changes in diameter.

Widening kits, skis, footwells, race shocks are not allowed

Low snow kits and handlebars are allowed

Track clips on every window

Working tach at tech maximum rpm

200's can also run in outlaw class

No studs or ice screws

 

Full size sleds

High visibility orange required on on helmet and back

No transponder

Number plates on full size sleds(refer to Isoc for class colors)

Trail class is only class with no number plates

All other sleds with follow Isoc rules with the added throttle block in Transition class and juniors classes

Transition
Junior girls

8-11 years old All 600cc  and 500cc sleds will be throttle blocked  number plates and no studs allowed Max rpm 6,000 clutch engagement 3,500 no cans

440 fan sleds are allowed if max rpm is 6,000

12-13 years old All 600cc and 500cc sleds will be throttle blocked refer to Isoc rules Max rpm 6,500 

No 440 liquid cooled sleds

No cans

Junior boys

12-13 years old All 600cc and 500cc sleds will be throttle blocked refer to Isoc rules Max rpm 6,500

No 440 liquid cooled sleds

No cans

Juniors girls
Juniors boys

14-15 years old Throttle restricted sled

Isoc rules

No cans

14-15 years old Throttle restricted sled

Isoc rules

No cans

senior girls

16-17 years old Isoc rules

no cans

senior boys

16-17 years old Isoc rules

No cans

Trail class
Amateur Women
Beginner 
Class

6" numbers on both sides, max 96 studs

Tekvest any racer

Must have tether and trail sticker

Isoc rules First time racer

snocross sled no previous racing history

First year racer same no cans no mods

No previos racing history

Sport
Pro Lite
Pro women
Pro
30+ 
40+
Snow Bike
Vintage(1987 and older)

Isoc rules 

Isoc rules

Isoc rules

Isoc rules

Isoc rules

Racer must have 6" numbers on sled
Tekvest, tether
450cc or less one of 22 kits manufactured commercially

Any sled must be in good working condition

Must have breaks

Tether

All sleds will be checked prior to racing for appropriate class