Ok, since riding season is officially over for me, I'm finally getting around to changing my chain and sprockets. The problem I have is that the front sprocket is held in position by a single bolt and I can't figure out how to get it off. Does it have standard threads (i.e., right to tight, left to loose?) or is it a reversed threaded bolt? Secondly, I can't seem to find a way to hold the old sprocket in position. . .is there a secret to this part?

-Ken

 

Ooops. . forgot to mention that it's a 96 if that makes any difference.

 

i have a 93 motor and it should be the same.. it is lefty loosey and i took and pryed a big scredriver in the sprocket and put a 3 foot long pipe on the breaker bar for leverage.. and i put it in gear too..hope this helps...or try a air ratchet too.

 

EDIT: responded too slow!
Good advice above. An imact tool is a much better option to torque it off fast, rather than pry bars.

 

i tried it just in gear and with a torque wrench and it turns the motor over without somehow locking the sprocket , but another thing i thought of would be that you could use the back brake.........

oh yeah i was doing it on a rear stand too so i should have mentioned that... should be easier with the rear tire on the ground..[:@]

 

[sm=smiley36.gif] That's hilarious

 

don't have an impact gun and since the chain is not on, the back brake won't do much. . .and yup, putting it in any gear doesn't do much to help. Isn't there someplace I can attach a wrench to the crank shaft to hold the motor in position? Mabye turning it into a two person job? I thought of putting a large screwdriver or pry bar to block it somehow, but I'm afraid of possible damage and my bike has already suffered enough under my rule.

-Ken

 

Since your replacing the sprocket can you clamp it with some kind of pliers/vice grips/etc?

 

Just go to a local tool rental store or to Sears and buy/rent an electrical impact drill. It's a good inventment on the long run. You can use it on your car lugs, Rebuilding your forks, etc. Beats breaking a bolt and paying extra to have the broken bolt extracted. Ebay has them from 30-80 for the corded ones with shipping added. Great investment! It will cost you more to repair if you bend or break something. [:@]