My checklist for each sled:
General pre-season maintenance…
We drop the primary & secondary to Thunder Products Clutching booth at Hay Days to be serviced. You can service them yourself if desired.
Before installing secondary > Grease bearings behind it with a needle tip
Install primary and secondary (after serviced at Thunder Clutching).
Blue loc-tight on secondary bolt.
Re-torque primary after running sled. > this is actually important. Ours have been loose when re-torquing!
Check clutch alignment (add/ remove shims behind secondary as needed).
New belt start of season….
Scuff belt > install > Set belt deflection. (rotate old to spare).
If sled has chain case, exchange fluid. Adjust chain tension as needed.
Pull exhaust valves > clean.
Check compression.
Check hyfax wear indicator. Replace if anywhere close to line.
Inspect track for damage, missing lugs, etc.
Set track tension and alignment.
Grease all zerks in the skid.
Check shocks for leaks. Send to Suspension Proz for rebuild as needed.
Check ski rubbers > replace as needed. (Keep spare set on sled).
Grease ski spindle bushings where the bolt goes thru.
Check a-arm bushings for excessive wear/ free-play.
New carbides start of season (old to trailer as backup).
Check ski alignment (should be toed OUT slightly).
Install battery from trickle charging thru summer.
New plugs start of season (spares on sled properly gapped).
Tighten any loose scratchers.
Check/ adjust throttle free-play as needed.
Drain old fuel, add fresh non-ethanol/ premium fuel.
Top off oil.
Top off brake fluid.
Install registration & trail stickers as needed.
In-season:
Clean primary & secondary prior to each trip.
Scuff belt prior to each trip.
Grease zerks every other trip.
Grease trailer zerks prior to each trip.
Check trailer lug nuts prior to each trip.
Check trailer tire pressure prior to each trip.