wing wont turn over


Information and questions on GL1200 Goldwings (1984-1987)
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barkman49
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Location: Ovid, New York
Motorcycle: 1986 GL1200 interstate

wing wont turn over

Postby barkman49 » Fri Sep 09, 2011 7:05 pm



I have an 86 intersate I was trying to start it and it was cranking over and then I heard a bang and it will not crank over at all :cry: the starter still tries but the engine will not turn , any ideas before I start ripping it apart to find the problem It only has around 40000 miles . :?:


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Steve F
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'03 GL1800

Re: wing wont turn over

Postby Steve F » Fri Sep 09, 2011 10:39 pm

Not a mechanic, and I'm just offerinig a guess, but remove your timing belt cover and check the belts,a nd that the cams are timed correctly. Perhaps you broke a belt and Mr. Piston met Mr. Valve?
"To ride is the reason, the destination the excuse."

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thrasherg
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Re: wing wont turn over

Postby thrasherg » Fri Sep 09, 2011 10:43 pm

My first guess would we be a broken timing chain causing the piston to collide with the valve gear and locking up the engine. I would be removing the spark plugs, put it in 6th gear and turn the rear wheel in reverse and see if you can rotate the engine backwards. If you can then it is probably the valve gear that is hitting the piston and locking it up. If you cant rotate the engine backwards then the failure is probably inside the engine and not the valve gear. you could also try removing the timing chain cover and see if the belts have snapped (The belt could look complete and it has lost it's teeth!!).

Gary

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barkman49
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Motorcycle: 1986 GL1200 interstate

Re: wing wont turn over

Postby barkman49 » Sat Sep 24, 2011 7:20 pm

sorry it took so long to get back but had other things to do. I put bike on center stand and pulled the timing belt covers and all was well so i decided to try the starter again to see if I could see anything and it :o cranked over and it started up didnt run it long no coolent in it. I don't like it when things fix them selfs what do you all think :?: still will crank over had to order a new O ring for the water pump housing from honda so I havent rode it yet.
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virgilmobile
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84 GL 1200 I

Re: wing wont turn over

Postby virgilmobile » Sat Sep 24, 2011 8:41 pm

It may have had a little fuel pooling in one cylinder from not shutting off the fuel lever.First crank and it "hydro locked"... can't compress gas.
Some time passes and the fuel seeps back out of the cylinder and it cranks OK.
This is possible and has happened to me.Shut off the fuel each time the key is off.

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RoadRogue
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Re: wing wont turn over

Postby RoadRogue » Tue Sep 27, 2011 10:35 pm

virgilmobile wrote:It may have had a little fuel pooling in one cylinder from not shutting off the fuel lever.First crank and it "hydro locked"... can't compress gas.
Some time passes and the fuel seeps back out of the cylinder and it cranks OK.
This is possible and has happened to me.Shut off the fuel each time the key is off.



+1, also check your oil level to see if it is now too high. Gas can seep in past the rings. Diluted oil doesnt lube very well.

Hydro locked engine come from sticky float valves not shutting the fuel off completely when the bike is parked, fuel still flows ,fills the cylinder and the piston can compress a liquid so it stops quickly (bang). If it happens again, pull the spark plugs and crank the engine over with the kill switch OFF,you dont want ANY sparks while doing this.Short bursts will do fine, this will pump out the fuel in a hurry ( keep your face and clothing away from the mist of gas, NO smoking either) Now you know where the problem lies and you can go about the next project. like pulling and rebuilding the carbs :D
Ride safe, Todd
Over night campers welcome

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barkman49
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Location: Ovid, New York
Motorcycle: 1986 GL1200 interstate

Re: wing wont turn over

Postby barkman49 » Wed Sep 28, 2011 7:13 pm

I got it all back together and it started right up but it was missing on one cylinder so is pulled the plug wire off the spark plug and it didn't change the motor and i noticed water on the plug boot so I took and blew out the hole around the plug and water sprayed out of the hole . The hole in the bottom of the plug hole was pluged so maybe this is way because the plug couldn't fire it build up with fuel in the cylinder and stopped the motor from turning over what do you think????
thanks for all the replies and the help
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virgilmobile
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Previously owned
78 GL1000
81 GL1100
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83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: wing wont turn over

Postby virgilmobile » Thu Sep 29, 2011 11:35 am

Water around the plug can kill the spark but not enter the combustion chamber.There is a drain hole between the 2 plugs.Use a wire to clear it.It drains between the exhaust pipes.

Back to the initial problem.Setting for a long time can leak some fuel into the cylinder and ""bang"" on the first crank.Pull the plugs and cranking will clear this.

2nd problem.doesn't fire on one cylinder.Swap plugs and re-test.from there check the spark and compression then onto the carbs.

My motto with all bikes...KEY OFF...FUEL OFF..every time..no exceptions




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