Restarting question - 1985 GL 1200A


Information and questions on GL1200 Goldwings (1984-1987)
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GoodDart
Posts: 2
Joined: Mon Nov 23, 2009 8:15 pm
Location: Sandy, Utah
Motorcycle: 1985 GL1200 Aspencade, 2005 GL1800

Restarting question - 1985 GL 1200A

Post by GoodDart » Sat Sep 22, 2018 1:08 pm



I found and rebuilt a 1985 1200A in 2007. Shortly thereafter I was transferred to China. I mothballed the bike before leaving.
When I returned I cleaned the carbs and replaced all the fluids and belts.
Before I try to fire it up I have a couple of questions;
Do the piston rings unseat over long non-use? I was gone for 6 years.
Can I reseat the pistons by putting a small amount of oil in the cylinder and cycling the engine?
Is there anything else I should be aware of prior to starting?


I have aquired a 2005 1800 to ride for now, but would like to get the 85 running.

Thanks

GDart



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LeMaitre
Posts: 50
Joined: Mon Apr 10, 2017 8:03 pm
Location: NE Minnesota
Motorcycle: 1985 GL1200A Aspencade
1975 CB550F Super Sport

Re: Restarting question - 1985 GL 1200A

Post by LeMaitre » Tue Sep 25, 2018 9:32 am

On the SOHC (750, 550) engines that have sat for a number of years, it is very recommended putting in oil in each cylinder and letting it sit for a couple of days before trying to turn over the engine. With that in mind I would put some in my own Gl1200A if it sat for six years. Just be careful to leave the spark plugs out for the first turn over to get rid of excess oil.

-Mark
1985 GL1200A

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Goofaroo
Posts: 106
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Location: Guthrie, OK
Motorcycle: 1986 GL1200 Aspencade
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Re: Restarting question - 1985 GL 1200A

Post by Goofaroo » Tue Sep 25, 2018 12:40 pm

I would suggest spraying a bit of fogging oil into each cylinder and then turn it over a few cranks. On a horizontal cylinder you’ll never be able to lubricate the top portion of the bore as well as the bottom but fogging oil will do a better job than just squirting some oil into the bottom.

It will be hard to tell even with a compression test if the rings are stuck or moving freely in the grooves. Heat alone once you get it running may free up the rings. Some guys swear by adding a bit of Seafoam to the oil to break things loose but it can be done more gently with diesel oil. I’m always buying old vehicles that have sat for years and I’ve had good luck cleaning the internals with Rotella T4 or T5.
It is 15W40 diesel oil that is friendly on wet clutches and has detergents that will gently clean an engine. I’ve used it for years in my bikes, cars, and small engines with great results.

GoodDart
Posts: 2
Joined: Mon Nov 23, 2009 8:15 pm
Location: Sandy, Utah
Motorcycle: 1985 GL1200 Aspencade, 2005 GL1800

Re: Restarting question - 1985 GL 1200A

Post by GoodDart » Tue Sep 25, 2018 8:44 pm

Thanks guys, that helps a bunch.



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