Does anyone know what the compression on an 2002 trailblazer250 is? It's about 87 lbs cold---80 warm. Is this ok? Thanks

 

It should be around 115-120. Time for a rebuild.

 

ya time for a rebuild

 

Thanks DG. Top end rebuild? Piston, rings, etc?

 

Yea and you'll probably need to bore or hone the cylinder. I'd send it to rick ritter for that he does great work and will hook you up with everything you need. Go to his site www.rittercycle.com and his phone number should be on the site just call him. He will tell you everything you need and prices. Hes a great guy to work with.

 

Thanks Paul !