compression


Information and questions on GL1500 Goldwings (1988-2000)
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monkoman
Posts: 5
Joined: Thu May 03, 2012 10:07 pm
Location: Nanaimo, British Columbia, Canada
Motorcycle: 1990 goldwing gl

compression

Postby monkoman » Tue Sep 04, 2012 9:50 pm



I have no compression in two cylindars. bike has been sitting for 3 years outside under cover. any sugestions.



User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: compression

Postby virgilmobile » Tue Sep 04, 2012 10:12 pm

Sounds like a couple of valves don't quite close.Maybe just stuck open just a tad.
I'd pull the air cleaner and using a spray bottle with your favorite concoction of penetrating oil and lubes,mist a shot glass down the throat of the carbs while cranking...not running...kill the ignition.
This might coat the valve stems enough to loosen them in a day...
I like to use ATF for this adventure.
I do suggest that after it's been oiled that you remove the plugs for the first crank to avoid any possibility of oil locking a cylinder and breaking something in the starter.
A bit of oil won't hurt the engine,and is the easiest first step.after that,it's off with the valve covers to look at the rockers and hydraulics.

monkoman
Posts: 5
Joined: Thu May 03, 2012 10:07 pm
Location: Nanaimo, British Columbia, Canada
Motorcycle: 1990 goldwing gl

Re: compression

Postby monkoman » Tue Sep 04, 2012 10:49 pm

thanks for the info, I will give that a try

User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: compression

Postby virgilmobile » Wed Sep 05, 2012 6:52 am

Just remember,oil will not compress.Don't just dump it down the carb and try to crank it.It will lock up.Just a mist,enough to get things coated.It will burn off OK.
Great for clearing bugs out of the yard too

monkoman
Posts: 5
Joined: Thu May 03, 2012 10:07 pm
Location: Nanaimo, British Columbia, Canada
Motorcycle: 1990 goldwing gl

Re: compression

Postby monkoman » Wed Sep 05, 2012 8:35 am

thanks again, I will let you know how I made out.




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