what is regular compression on a 49 cc two stroke
compression
Re: compression
it should be around 120lbs, or higher, but some aren't, and they run crappy.
Re: compression
A general rule for most engines is anything lower then 75 is quite worn. Anything above around 130-150 on a stock bike usually means it's time to decarbonize.
What bike do you have?
Re: compression
75? thats way too low. a 2 stroke need 120 or higher to run correctly. anything below that and you'll be lucky if it starts.ive never seen one run below 110-115.
Re: compression
ahh right.. was thinking of 4 strokes again being 3:30 AM.
I cant imagine a 2-stroke running below 100 or so, and not well below 120.
My Honda Express was about 115-120 with a fairly worn engine, but it still ran. Then I replaced the cylender and piston with one from my parts bike and put in new rings. Now I'm at about 130 and it's running well.
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