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Texas
03-02-2012, 07:21 AM
I am a Rookie, I recently let my daughters TRX 90 sit for a long time in pieces. The problem is that i did the valves on it before i let it set up. I did a leak test and it looked good and i also checked the compression with my tester. I don't remember what stock compression is supposed to be. (My first question) I am getting 60 Psi so i know that the valves and piston are semi working. It could be as simple as timing i am guessing but even with 60 Psi i can not get it to fire at all. Any help would be great.

miniquaddad90
03-08-2012, 10:26 AM
Check the intake valve lash. Could be staying open if out of adjustment. Stock compression should be at least 150psi. Book says 178psi