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Old 04-18-2007, 09:50 PM   #1
jonathan180iq
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Join Date: Jan 2007
Location: Dalton, GA
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Install a 16 Tooth Front Sprocket

This is fairly simple process. It actually took more time to reinstall the friggin' cotter pin than anything else.

Things you'll need:

17mm wrench
3/4" wrench
12mm socket
7mm socket
30mm socket (torque wrench)
alligator pliers
flat head screw driver
new sprocket




PUT YOUR BIKE ON SOME STANDS




The first thing that I did was remove the sprocket cover. There are three 7mm bolts that hold the cover on. They don't need to be torqued or anything.



If your sprocket cover is dirty, this is probably a good time to clean the inside and remove all of the extra gunk from the chain goo.

Next, you'll want to remove the cotter pin and loosen the rear axle nuts. This is the easy part of the rear axle work.



Work the chain tension bolts and loosen the chain to get some slack. YOU"LL NEED IT.

Now go back to the sprocket and bend the lock washer FLAT. This is important or you will never get the bolt off.



Now, you'll need the 30mm torque wrench to get this bolt off. You'll also need to put the bike in gear and have someone press the rear brake pedal. I didn't have anyone to help. So, I sat on the bike and one handed the torque wrench.

Getting the old sprocket off is quite easy. Getting the new sprocket on isn't too hard, you just need to relax and make sure you push it on the little gear teeth with care.




Slide the new sprocket on, reinstall the lock washer and bolt and tighten. You will need to make sure to REFLATTEN the lock washer once it's all good and tight.



Once this is all done, retighten the chain per the manual's instruction and you're pretty much set.

You just need to reinstall the sprocket cover and YOU"RE DONE. GO FOR A RIDE!!!!

Here is a final shot of the difference between the 16 T sprocket and the original 15T sprocket




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