yamaha driver

Also I noitced on the flywheel the inner sides of the nubs that are for the pickup coil are wore down , looks like the pick up coil broke or something at one time. will that be a problem too? It still gaps right.

Well cap to cap I got 24.6 at 200k on the multimeter, I'm not sure what it's supposed to be at but Ignition coil I got 12.1 which should be 13.7- 20.5 Pickup coil I got 112 which should be 94-140 Bad stator then?

Well I never tested the stator yet I have a multimeter, not sure exactly how too but I haven't tested coil but I bought new NGK plug caps and cut the wire back a 1/4 inch when I put them on, it runs great, up until that point, revs don't hang when you rev it and still starts in 1 kick even in this cold.

Well I compensated the lean condition with richer jetting which I believe was the intake clamps, I didn't know it had a timing plate, and it's still at 340 mains at about 20F now, but the plugs are seem fine now they aren't wet around the bottom and it barely got hot even after riding it for a while. But it ran great no more low end bog and great power until it just hits almost like a rev limiter.

Well I just set it back to zero and put the new clamps on and the plugs turned to a lightish brown with very dark brown waves? But it still cracks apart at high rpm about half way through the powerband, choking it just makes it worse. The pickup coil looks new so maybe it's a rm stator?

I have 91 in it now, can I just retard the timing and run 91?

Well I guess it has a timing plate too, I took of the side cover and noticed its at about +6, PO said engine was stock but he didn't own it for very long so I guess not. But that seems pretty far advanced IMO. But I'm new to messing with the timing on these, so what should this be at?

Well I just slapped the carbs back on and I noitced with the clamps all the way tight the carbs still turn in the boot with little force. So maybe the clamps are the wrong ones or just old? They look like the stock ones since they have the little notch for the top of the intake boot. Could that be the air leak? I'll see if the Yamaha dealer here has some new clamps and try that

Well I shouldn't say it held complete pressure it dropped a needles worth of pressure. But with little bubbles around the rubber plugs it seemed reasonable. I'll try to get them to seal in there better tommorow and retest but wouldn't it drop more if there was an air leak somewhere else?

Well I leak down tested it and it held pressure through the 6min.. With only small leak around where I put the plugs in the intake boots. Never picked up a new compression tester but both pistons and cylinders look good with no scoring from what I can see through the exhaust ports. Sprayed soapy water on everything and only bubbles were there.

Ok I noticed a little cracking on the intake boots but they aren't that big, I'll have to pick up both and do some testing.

Ok thanks, would just needing a rebuild make the plugs white tho?

Alright I'll pick up a new tester and try that first. What should be a good psi for stock engines?

Sorry forgot that, 1200ft 40 degrees . Boysen reeds tors delete, parking brake delete, ignition delete but no other mods that I know of, 27.5 pilot. Ran the same with the 300 jets but got hot quicker. But it will start up first kick and idle pretty decent.

I just picked up a 2001 banshee a couple of weeks ago, wasn't running right when I first got it and figured out the carb slides were in backward. Then I flipped them around it ran a little better but is running lean, starts right up with no choke but have to feather the gas a little to get going and won't rev all the way out. Haven't done an auctal plug chop but they are white after WOT runs and after idle. I bumped up the main jets from 300 to 340 with no difference in running or plugs, also put new NGK plug caps on.Engine is stock with toomey t-5 pipes and silencers, no air box lid with clean uni air filter. I was going to build a leak down tester but was wondering if a bad stator could cause it to show a lean condition? It doesn't seem to get that hot, but just sounds like it's still cold when you try to rev it out. I compression tested it but I believe it's my broken tester since both were at 75psi but kicks over harder then my old banshee. Going to pick up a new one tonight. Any help is appreciated!