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Low compression but the bike runs fine?

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heli_madken:
I bought exactly the same set of gauges a couple of years ago and tried them on my freshly restored GL1000 and got 80 PSI on each cylinder (should be around 150 > 160 PSI). Bike starts on the button from cold and pulls like a train, I dont bother using them anymore.

deltarider:

--- Quote from: Macabethiele (Ted) on September 09, 2021, 09:53:36 PM ---My late Father who did his apprenticeship at RR/Bentley in Crewe during the war years always told me that unless you had a problem with an engine do not check the compressions as you will usually be disappointed. In the 1960's when he was teaching me to strip down engines it struck me as a strange thing to tell me - nowadays I see he was right. If they are all pretty much even and you do not have a load of smoke my view is that if it starts easily from cold then it's okay. Fwiw avoid getting fixated on the numbers.

--- End quote ---
This ^
Over the years I have done a few attempts to do a compression test and failed each time. I have given up, as I don't have a problem.

alexdecker:
Okay okay okay … I will leave it be. For now at least  ;D

Sesman:
Alex. Did you pick up the mirror dimensions?

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