With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share what you made with text, photos, video, and files
gather your favorite instructables together
This is an overview on how to remove the rear sprocket on a wr250r to change the gear ratio. I started with a 12 tooth front and 48 tooth rear which i...
First step is to lift the bike using a buddy or brute force. Place a sturdy block or bucket under subframe. ( Or use a motorcycle lift if you wish).
Next remove axle nut and remove axle.
Now remove the adjuster blocks. First you loosen the lock nut, which is a twelve millimeter on this particular bike. You loosen this up and the same ...
Remove the drive sprocket. Depending on your bike you may need to open the peened part of the nut to remove.
Install new sprocket on output shaft. Also it is a good idea to use thread lock.
Place a piece or cardboard or towel on floor, and rest tire on floor. Using a number twelve wrench and allen wrench,remove bolts on sprocket.
Depending on the size of your sprocket choice & length of chain, you might need to add a link to your chain. In this case I replaced the chain along w...
Before re-assembly, make sure to compress rear brake caliper pistons to allow the rotor to fit back in the caliper. Using an old brake pad or piece of...
Once the new sprockets and chain are reinstalled, align rear wheel and reinstall axle.
Now it is time for chain adjustment. This is a very important step and you must use the revised procedure from Yamaha
At this step tighten up axle nut and check for tight spotss in your chain. If you don't have any, it is good. If you feel binding re-adjust. Once comp...
We have a be nice comment policy. Please be positive and constructive.
License:None (All Rights Reserved)
Motorized Bicycle Assembly Overviewby vazquezl31
How to prevent thefts steal your motorcycle for less than US$ 2by Shadow Brujah
Build Your Own ELECTRIC MOTORCYCLEby bennelson
How to Prepare a Motorcycle for Winter Storageby bbutanis
How to fix a loose cush drive on a motorcycle for cheap.by earz_cd
How to Revive an Old Motorcycle: Save Money on Gas/Fuel! Cheap Ride!by skunkbait
Motorbike Restoration (light restoration)by alan0guy
Motorized Bicycle DIY: The hard wayby bogyman57
Puch E50 Changing Sprocketby droidy_pendejo
MOPED INLINE FUEL FILTERby droidy_pendejo
Download our new apps for iOS, Android and Windows 8!
© 2015 Autodesk, Inc.
By clicking "Create Account" you are indicating that you have read and agree to the Terms of service.
Already a member? Login »
Enter the email associated with your account and we will send you your username and a temporary password.
Not a member? Sign Up »