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If I only want to check compression on one cylinder do I need to remove all the plugs or just the one I plan to test?
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80 XS11 SG
79 XS750 SF
74 KZ400
78 KZ650
78 KZ750 -
Engine warm. (2-3 minutes at idle.)
Fully charged battery.
Throttle wide open.
All spark plugs removed.
You COULD leave the other spark plugs in and check it.... it just wouldn't be right!!
TodTry your hardest to be the kind of person your dog thinks you are.
You can live to be 100, as long as you give up everything that would make you want to live to be 100!
Current bikes:
'06 Suzuki DR650
*'82 XJ1100 with the 1179 kit. "Mad Maxim"
'82 XJ1100 Completely stock fixer-upper
'82 XJ1100 Bagger fixer-upper
'82 XJ1100 Motor/frame and lots of boxes of parts
'82 XJ1100 Parts bike
'81 XS1100 Special
'81 YZ250
'80 XS850 Special
'80 XR100
*Crashed/Totalled, still own -
While you can leave the other plugs in, it's not recomended
The starter will be under more load, so won't turn as fast which may mean a lower reading (and a hot starter)
If your head gasket is leaking between the cylinder you're testing and one with a plug still in it, its pressure could be different than what is its true reading
David
Of course an expert can come along and shoot down my years of ingrained myth
Please do
XS1100G (3X1 000274) "Torquey"
You can think of a lightning bolt as essentially a really really big bug zapper. Unfortunatey, we're the bugs.Comment
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Thanks Gents, that's what I needed to know.80 XS11 SG
79 XS750 SF
74 KZ400
78 KZ650
78 KZ750Comment
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