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Post Info TOPIC: 2005 ttr low compression, no start, rings, valves


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2005 ttr low compression, no start, rings, valves

I'm kicking myself a bit for this one, but let's see if I can get it running at least. 

Low compression (45-50 dry), no spark (before me), new wiring harness and tdi box installed by questionable methacanics...

Leakdown and simple tests indicate carb, valves, rings, or something bigger. 

After top end breakdown. I'm thinking rings!  Look at the blowby... needs carb job too. But the valves are still in spec, closely. 

What would you do? 

The head looks OK, the bore OK, the rings no. Rod slop, acceptable. Valves might need a job... but I couldn't get this thing attempting to firing on ether either. And they're tight. Bore mics out at 73, pretty close. 

Threw it back together for the night.

I'm Thinking new piston and rings, not gonna get to perfection, just want it running. Plus would like any advice on upgrade or mods that might be helpful at this point of teardown?. Help? 

Think the previous owner, ran it rich for too long, burnt up the rings. Thoughts?



Super Guru

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