I'll keep this short and put it in jot note form, it should be a quick answer.
Ok so first off we all know that the manual says .016-.018 but they come out of the box at .030.
Here's my dilema.
Gapped at .016-.018 the sled is a real pain to start, and wont stay running without 1/2 throttle, it misses and runs extremely rough, can't maintain an idle and stalls if your not constantly on the throttle. Runs like a sled that hasn't had new plugs in three years. Pull out the plugs and they're always soaked.
At .030 the sled absolutely purrs and runs incredibly well. Pulls the ski's off the ground in a stubble field etc. Had it running at .030 for a 3 hour trip today and it ran great, idled at about 1500-2000. Got 20 miles to 1/4 - 1/2 tank of gas.
It was recently in a shop to get the carbs redone etc. They gapped the plugs to .030. Is it possible that the carb settings are what are causing the smaller gaps to be unusable?
Will there be any damage done using the bigger gap?
Should i bother playing with it to get it running at the .016 gap or should i follow the old "dont fix what isn't broken" formula.
Am i losing any power? It accelerates very well, pulls the ski's off the ground and seems to have a top speed of >60mph in very rough terrain and snow. Idles at 1500-2000, clutch engages at around 3000-4000, seems to top out at 7000 (assuming of course that the tach is right... the dash came out of a Mach Z)
What should the rpms sit at while at full throttle and what should the rpms top out at?
Thanks in advance, im sure your all getting sick of these plug threads.
1980 Polaris 440TX - given to charity auction
1996 Ski-doo Formula STX 583