i got my snow mobile out today, from the long summer storage!
i ended up figuring out the spark plugs were bad causing the problem. it ran great after a new set, it actually had power

What have you replaced so far? Spooling up to high RPM and then falling flat or dying sounds like the stator windings have failed, so you lost the high side of your stator. But, if it warms up and comes out of it / runs normally, not sure what's causing that. Generally the stator will fail after it...

Thanks for the help! I got my sled out a few weeks ago, I had a problem where when you'd get on the throttle It would get high In rpm and then try to die It did a few times, then It would have more power than I could handle after about 15 min of running It. what would cause that? - Thanks! Garrett

I have another question, how do you tune the carb air screw and ide speed?

Thanks! I received the fireplug cdi a cupple days ago & it's missing 2 plugs the square plug is correct but the two round ones are missing has anyone else had the same problem?

Iso 1977 cyclone 440 seat or i'm open to just the foam. thanks - garrett

Well i just got done buying all the parts i need, 1 new fireplug cdi, 2 brand new coils, track wear rods, & engine parts and a bunch of other stuff, set me back $500, i have the engine at the machine shop having the pistons fit i should have it running soon, is there anything else i should look ...

where would you get the howtec conversion ignition system for the john deere engine?

Also i checked the crankshaft with a dial indicator. it has no more than .01 thou run out on both sides, also i found out that that i doesn't have the mileage that i said it did, someone disconnected the speedo cable at some point so i don't know what it has for mileage, i was considering engine swa...

thanks! i got the engine apart, i found that cyl #2 ate the bottom piston comp ring, surprisingly the cylinder is fine, the piston however looks scary not gonna lie, both cylinders need to be bored out at least .010 to make it rite, the crank is fine has almost no end play and the rod bearings are f...

Thanks guys! Ive been working on it here and discovered one cylinder has 50 psi comp and the other has 100psi, it doesn't run bad but is extremely hard to start without starting fluid, which i know is is not the right way to do it, but it's the only thing that gets the thing running, I'm thinking ab...

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thank you matt, and here's the pictures

also how do you post pictures on here?