Sparkplug size? Could use some help

[satchmo]

I'm trying to run a compression test/swap the plugs on my 1984 GS1150EF, but I can't get the damn plugs out. the 13/16 is too big.

Anyone know what size this should be? I'm thinking 16mm (as the 17mm deep I have is too big as well).

Also -- anybody know what kind plugs and oil filter this bike should take? -- -if I have to go get a new socket, might as well pick up new plugs and oil filter while I'm there.

cheers.

Satch

[Steve]

Don't know about your bike in particular, but another common size for plug wrenches is 5/8", which translates to about 15.8 mm. I am sure that a 16 mm socket should fit, but try to use a 6-point socket instead of a 12-point.


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[SqDancerLynn1]

your on the right track 16mm

[satchmo]

Sweet. Thanks guys.

[ScottMc1100L]

.....Also -- anybody know what kind plugs and oil filter this bike should take? -

Satch

Factory Spec Spark Plugs:
NGK D9EA

Aftermarket air filter:

EMGO M4010

I can get you the factory air filter # if you need it, I've got it somewhere...

Cheers back,

Scott