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rocketman123
09-04-2008, 11:55 PM
New problem just arose today (yay!...NOT)

I put a DG RCM exhaust on my ytm225dx and rode it yesterday around just fine. Now today when i tried to start it, it wont even grab or pop or anything. I have no battery so my arm got tired and i gave up. i smells really gassy right away so it could be flooding but i let it sit for a while and tried again and it didnt to anything. its go a new plug in it too! also the pull string seems easier to pull from yesterday so maybe valve blow by? doesnt feel like i have full compression or something. maybe its just me

Any suggestions?
trizilla
09-05-2008, 11:58 AM
check your valve clearance.
rocketman123
09-06-2008, 01:00 AM
k. just bought feeler gauges and a compression tester. that all that could be wrong? i was revvin it kind of high riding it around (oops!)
trizilla
09-06-2008, 07:36 AM
oh, there's a whole bunch of things that can cause low compression. thats just the easist to start with.
rocketman123
09-06-2008, 07:14 PM
oh haha k.i will readjust them tomorrow then. i bought a compression gauge to make sure its not just my imagination. thanks for the help!
rocketman123
09-07-2008, 01:25 AM
so i did a compression test on it and stock compression is about 128psi, when i tested it, it was less than 60. first crank started below 30psi and each consecutive crank it increased 5psi til it topped out around 60. im guessing i blew the piston because if it is a valve issue wouldnt the psi stay the same if i put a little oil in the piston and tried it again?