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Compression check

DMAR03

CB750 New member
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Baltimore, Maryland
Hey Guys,
Did a cold compression check on my 77 last night. The bike has been sitting for approx 3 years. Numbers for the cylinders were

Cyl 1 -127

Cyl 2- 126

Cyl 3 -125

Cyl 4- 126

Im pretty happy with those numbers and expect them to go up after a couple riding sessions.

Question I have is, Once I start riding this bike, what numbers should I look for? How do you guys think those cold numbers look?

Bike is a 1977 CB750K. Has 20,000 on the odo.

Thanks all!
 
It ll run fine with that compression providing you tester is accurate. they are a little low but itll be fine. factory spec is around 170 ish but I normally never see them above 150.
 
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