Cylinder compression for 79'KZ 650

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Cylinder compression for 79'KZ 650

08 Oct 2007 15:37
#175270
What is the compression spec for a 79'KZ650?
Bought a used 650 and it came out at 135+ on all cylinders.

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Re: Cylinder compression for 79'KZ 650

08 Oct 2007 17:23
#175284
Not too bad. Was it fully warmed up, throttle held open, fully charged battery, all plugs out?
1980 KZ650F1, Bought new out the door for $2,162.98!

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Re: Cylinder compression for 79'KZ 650

08 Oct 2007 18:24
#175293
I'd be pleased with those numbers.

Hey does that mean that his valves are good?


KZCSI

Post edited by: KZCSI, at: 2007/10/08 21:48
www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Honda Valkyrie, 2009 Yamaha Roadliner S. 1983 Honda GL 1100
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Re: Cylinder compression for 79'KZ 650

09 Oct 2007 07:32
#175363
Most likley, yes. :)
1980 KZ650F1, Bought new out the door for $2,162.98!

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Re: Cylinder compression for 79'KZ 650

09 Oct 2007 08:51
#175374
Thanks, I feel a little better about my bike now. The compression was done at the shop so I doubt it was done hot. What was the compression when new?

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Re: Cylinder compression for 79'KZ 650

09 Oct 2007 09:17
#175382
I could be wrong but I think it was in the 150 or so range? I've owned my bike since new, it runs fantastic but have never checked compression. I should pull my head out of the sand and do it someday!
1980 KZ650F1, Bought new out the door for $2,162.98!

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Re: Cylinder compression for 79'KZ 650

09 Oct 2007 12:36
#175413
KZCSI wrote:
Hey does that mean that his valves are good?


:P :P :woohoo: :lol: :side: :cheer: :blink: :laugh: :P :ohmy: :lol: :woohoo: :silly: :silly: :lol:

wise guy :P
someday i will be able to afford my kz habit.

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