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Old 04-24-2005, 10:33 AM   #1
MotoRagazzo OP
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Joined: Mar 2005
Location: Arizona
Oddometer: 53
XR650R Mainshaft Threads Stripped

Hello All:

I was replacing the clutch guide bushing with the upgraded bushing on my 2000 XR650R. While removing the staked locknut I must not have unstaked the locknut enough. I used a pneumatic impact wrench to take the locknut off. Unfortunately the last 2-3 threads of the main shaft were damaged. Definitely the dumbest thing I have done in close to 20 years of wrenching on bikes - a result of a rushed job. It looks like if I am careful and do it correctly, that I can repair the threads.

After a string of curse words I measured the threads and the main shaft is an M18 with 1.0 mm threads. I went on line and ordered the following:

Metric thread restoring file
Metric Die M18 X 1.0
Nes thread restoring tool

These tools have not arrived yet....

My questions are:

1. Has anyone ever had to repair the first 2-3 threads on the main shaft or similar fine threaded shaft, spindle or stud? If so, any recommendations on tools and/or procedure.

2. For future reference, has anyone developed a better method to unstake this locknut?

Thanks for any good suggestions of tools or techniques….

SenorGG
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Old 04-28-2005, 08:37 AM   #2
neduro
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Location: Colorado Springs, CO
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Have done that job 3 times now, about to do it once again. I've always used a engine mount locating tool (flatblade screwdriver) to beat the washer flat, and IIRC, used the rear brake with the transmission in gear to hold the motor against the torque I put on the nut.

No advice on fixing the threads. That sucks.

Let us know how it comes out, though, eh?

Ned


Quote:
Originally Posted by SenorGG


2. For future reference, has anyone developed a better method to unstake this locknut?

Thanks for any good suggestions of tools or techniques….

SenorGG
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