engine help (fly wheel(

[yamahaman244]

hey guys lsat night got new axle bearings in and rode around ran awsome took off tonight ran good tell heading home all of a sudden was cutting out so i figured fried the pistons

 

i took the carbs off look at the intank side of them look fine everything is good so was talking to a buddy and he said look at the fly wheel so i took that off also and sure enough was the fly wheel making the noise the nut holding it on is loose so wht does this mean could that be all that is just came loose and is causing this?

 

need help on wat to do next or ideas

[SAVAGE420]

Grab some blue lock tight and put some on the threads. Now hit that bitch for a few seconds with an impact gun or 60 FTLBS if your anal about TQ specs.

Problem solved Chance.

[yamahaman244]

thanks chris um...also im getting a new key way it was worn pretty bad and ill do that thanks for the help do i need to get it all in spec or can i jus use a impact tell it stops moving

[SAVAGE420]

Just zing it on tight with lock tight or 3 grunts with a socket/ratchet.

[Rotax Raptor]

This is what I do to solve this problem. Get some lapping compound and put it in the crank and fly wheel. Lap the fly wheel to the crank until it becomes pretty hard to turn by hand. Clean both crank and fly wheel with carb cleaner to get all if the grit off. Buy a oem fly wheel key and a new nut. Use blue locktite on the threads and hit it with an impact.

Some after market keys don't fit right and the threads on the nut will sometimes become stretched after tightening them so I always us a new nut.

This theory has worked every time for me. Good luck.

[SAVAGE420]

^^^ Good tips rotax.

[Burt Reynolds]

i have never had to use loc tite on the flywheel nut,but its a good idea. If my flywheel nut came loose i would be taking off the clutch cove and making sure the main gear nut is still on.

[Loc]

Just had mine come loose the other day. Bike did the same thing. Blue loctite and an impact will take care of the problem.

[yamahaman244]

Just had mine come loose the other day. Bike did the same thing. Blue loctite and an impact will take care of the problem.

 

 

thanks for the replys most likkly looks like my key came out its prety beat up and aint very good so im gunna get some loctite and new key and put it back together thought my motor blew kinda wat it sound like lol happy its just this

[Dazeys]

thanks for the replys most likkly looks like my key came out its prety beat up and aint very good so im gunna get some loctite and new key and put it back together thought my motor blew kinda wat it sound like lol happy its just this

 

 

 

 

 

Sounds like a good time to install an adjustable timmin plate.