if anyone has any thoughts send them my way. my sons breeze is hard to start and i think very low in power. someone mentioned something about the valves may be to tight and that they needed adjustment. any thoughts?

john

 

Had the valves been adjusted before? I am not sure, do valves get tighter from use? Are there any other symptoms? If you have an engine problem and have lost compression I believe that would cause your problems. Could also be carb related.

 

Do a compression. If low, check the valves. If out of adjustment, adjust them. If not, time for a teardown.
OR, you could do a leakdown and see where the problem is the first time.

 

i pulled the carb apart, cleaned it, and reassebled with no change. i havent checked compression though. does anyone know what the correct compression is. that is an easy check if i know what it should be.

 

Sorry, I don't have the specs for the compression. I would just take it and see if your in the ball park. If your under 100 I would start looking at more things like valve clearence. If that is good then I would do a leakdown.

Actually, I would do the leakdown first because it will tell exactly what is up with the engine.

 

you mention leakdown. what is this and how do you do it.

 

A leakdown involves injecting air into the combustion chamber when the piston is on TDC. Most people have a gauge set that will tell you exactly how much air is leaking. You don't really need that. Just an aircompressor or air tank will do.
You put an air fitting in the sparkplug hole and inject air in the engine. Then you listen for the air leak. If you hear lots in the air box, you have a intake valve problem. IF you hear lots in the exhaust pipe you have an exhaust valve problem. If you hear lots in the crank case breather you have some ring problems.

It's a way better way to diagnose problems. The only problem is, most people don't have things like an aircompressor.

Might be a good time to check the valves for clearance first if you don't have these things. As a matter of a fact I need to check the valves on my Breeze.