Spinner18
New member
Whats the plug gap for these? Also, whats stock main jets and pilot jets in 2001? Going to swap exhaust from aaen back over to stock with hauck growlers and would like stock jetting. that way i know if i am going to be racing, i can put the stock muffler back on and be faster. thanks
Spinner18
New member
no one gaps their spark plugs?
.028-.031" should come pre gapped ,,, ecs plugs they recommend to not adjust...
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Spinner18
New member
alright. whats stock jetting and pilots in these also? thanks
40 on the pilot & #1-150. 2&3 148.8 for mains @ sea level. Check out tech section for all stock specs....
Spinner18
New member
assuming #1 is the mag side. thanks
daman
New member
hell yes.....028-.031 i use 30Spinner18 said:no one gaps their spark plugs?
a search would have reviled this answer
#1 on a 2001 sled is pto side...(clutch)........ well all sleds....
Spinner18
New member
why would the clutch side be jetted the fattest? i figured the mag side would have been fattest since its closest to the pipes getting more heat.
I like .018 for the plugs. Don't know why yamaha suggests .028-.031. Takes alot more energy to bridge a larger gap. And it won't happen if you have alot of cyclinder pressure such as in a mod motor. Skidoo has run .018 for years that is why you can get the ecs's pregapped at .018.