Jump to content
Sign in to follow this  

Changing front sprocket

Recommended Posts

Hey guys, I have an 09 yz250f. I am changing out the front sprocket and was putting more torque on it than I thought it should need to loosen it. Are these normal threads(Lefty loosey)? I'd feel like an idiot if I stripped the threads on the shaft.

Share this post


Link to post
Share on other sites

Yes, they're normal threads. I assume you have the sprocket jammed so it won't spin? Have you bent the lock washer tab up?

Share this post


Link to post
Share on other sites

Normal threads, i leave the chain on and stand on the foot pegs of my bike an step on the rear brake an use a tourque wrench to get the nut on an loosen it.

I don't like putting it in gear so the countershaft wont spin.

Impact is the easiest though.

Share this post


Link to post
Share on other sites

If you locktite the splines of the countershaft it will prevent the sprocket from wearing the splines. A good tip for a bike you plan to run for many hours.

Share this post


Link to post
Share on other sites
If you locktite the splines of the countershaft it will prevent the sprocket from wearing the splines. A good tip for a bike you plan to run for many hours.

As some bikes have there engine sprocket held on with nothing more than a circlip I very very much doubt if this is worth the effort ! oh and plus the fact it serves no gain what so ever and even if it did work changing sprockets at a later date would then become a right pain in the ass

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×