Help 2001 Rm125 need assistance

Joined
May 26, 2018
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#1
Riding on the road on the long weekend, sounded like the top end went. When you go to kick it over the kick start was hard as hell but still moved. Would not run though. Took off the head, on certain strokes of the kick starter you can push the piston down, on some not. Kick start still very tight and hard to move , piston is in good condition, head is in good condition, jug is in good condition. Need some help troubleshooting
 

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- a d v e r t i s e m e n t -

Joined
Dec 31, 1969
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#5
Yup, that's what I was afraid of. Ever split cases before?

Sorry no one got back to you... seems a lot of folks are not spending much time on the internet this Holiday weekend!
 
- a d v e r t i s e m e n t -

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#6
I haven't, my dad used to be a mechanic so I should be alright in that aspect. Any ideas what would be the best piston to run? Seems like a lot of good and bad with all of them I've looked at
 
Joined
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#8
Wiseco is a solid choice for the piston, we have used them for years with outstanding results. Hot Rods has a great bottom end rebuild kit for your bike that has all you need to do the job. Pick up the Suzuki service manual and you'll be surprised how easy the work is to complete.

Hot Rods bottom end rebuild kit with a new crank for your bike can be found by clicking the MotoSport link to the left.

Lots of good maintenance info can be found in Eric Gorr's book
Four-Stroke Motocross and Off-Road Performance Handbook (Motorbooks Workshop)

Lots of free tech info available at Eric Gorr Racing - Tech Self-Help

If you run into issues as you are doing the work with your Dad just ask.
 
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