Jtbizzy

Member
Nov 24, 2018
1
1
I have a 1988 rm125 trying to figure out how much compression I should get I just rebuild top end still having issues trying to get it to start got Spark please help
 

Okiewan

Admin
Dec 31, 1969
29,555
2,237
Texas
160-175 if I recall correctly, someone please correct me if I'm wrong.
 

Rich Rohrich

Moderator / BioHazard
LIFETIME SPONSOR
Jul 27, 1999
22,838
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That a good range for compression.
 

The Redrider

Member
Jun 14, 2019
238
32
I have a 1988 rm125 trying to figure out how much compression I should get I just rebuild top end still having issues trying to get it to start got Spark please help
Olde 125? Get your credit card ready! Top end is a good start. You would be wise to do a ignition rotor wiggle, up and down to see if those bottom end bearings are toast. Beautiful bike, slap up some images...
 
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