Please help me restore this old GL1200 - Page 5 - Steve Saunders Goldwing Forums

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post #41 of 48 (permalink) Old 08-25-2019, 01:09 AM
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If you're getting white smoke, that may mean a bad head gasket, and explain the miss.

And a miss, or out of sync carbs, can make the primary chain rattle.

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post #42 of 48 (permalink) Old 08-25-2019, 05:25 AM
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Quote:
Originally Posted by Fatboy123 View Post

I did not check the float heights when I had the carbs open, only cleaned the jets and body, should I do that task?

What do you recommend me to check? by a "Miss" do you mean a misfire? where do I check for the rattle? could it be stuck valves that need lubrication? should I take another video at a specific rpm?

Should I do a compression test? should I verify that I have spark at the cylinders? should I check the ignition coils?

A member here was kind enough to give me his carb sync tool, so I'll sync them later in the future.
All of the above.

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post #43 of 48 (permalink) Old 08-25-2019, 05:40 AM
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I tried to find a video of what it should sound like but all of them I found sounded like a bucket of bolts except one that had the radio so loud it drowned out the engine. Here is an 1100 that is a pretty good example
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post #44 of 48 (permalink) Old 08-26-2019, 01:38 PM
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On my GL1200 I found that carb synchronization was important to have it running smoothly. I would recommend that you prioritize that before you go much further.
Make certain each cylinder is firing by pulling one plug boot at a time. If you are not familiar with these engines normal sound you might be fooled into thinking that all 4 are firing when in fact only 3 are (I can say this from experience!). The motor should slow down and the cadence sound different each time you pull a plug. If no change then something is wrong with that cylinder. I found that the carbs were very difficult to get completely clean and any foreign material in the fuel lines always found its way into the slow speed jets, killing one or more cylinders. The bike will actually run on two cylinders quite well and even on one cylinder.

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post #45 of 48 (permalink) Old 09-01-2019, 01:11 AM Thread Starter
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Good day Gentleman,

I checked all the electricals and all tests were good, I did a compression test and all cylinders produced 180 psi, I put new spark plugs and checked the gaps.
I checked the cables of the ignition coils too.

I'm still waiting for the carb sync tool, in the meantime there was too much exhaust leak sound to determine if I need a valve adjustment or where the engine noise is coming from, so I removed the exhaust, there doesn't seem to be any leak on it. but what I found was that one of the brass manifold gaskets and the left side of the muffler doughnut was missing, so that is what was causing the sounds, I'll check if I can find these brass gaskets here, but I don't think I'll find the doughnuts, is there something else that I can use instead?

When I want to reassemble the unit, what is the easiest way? as a complete unit? or the headers first and than the back part?

Once I sort out the exhaust and sync the carbs, I'll post another video of the engine running to see if there are any noises that needs attention.

Thanks again.
Attached Images
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File Type: jpg 7e331245-ccd1-4db2-8ca1-206fb1902568.jpg (140.2 KB, 13 views)

1984 GL1200
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post #46 of 48 (permalink) Old 09-01-2019, 02:26 PM
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I installed my exhaust in one piece. It helps to support the rear with a jackstand or have a helper hold it in a raised position. Then lift the front and start getting some of the header bolts installed. I would like to see some videos of the motorbiking scene is Kuwait.

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post #47 of 48 (permalink) Old 09-04-2019, 08:07 AM Thread Starter
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With difficulty I managed to find some old stocks locally, but they were different part numbers that seem to fit perfectly, like the pictures below, so I bought them, the brass gasket seems a tad small, I don't know if that's the way it's supposed to be or not?

A question, can I smear that muffler sealer all around and inside and outside of the muffler doughnut?
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File Type: jpg 96269da4-978e-4e14-8d0b-3cc2d916dc2a.jpg (39.0 KB, 7 views)
File Type: jpg 5c926d06-2f5f-4a15-862b-e553b58069bf.jpg (50.4 KB, 8 views)
File Type: jpg f2543c61-ee6c-4485-b2fe-7f40cea7a702.jpg (43.8 KB, 10 views)
File Type: jpg ec8d8a2b-39f7-4952-9b6c-f5c0b7187160.jpg (66.3 KB, 9 views)
File Type: jpg 5c6e50fa-a159-43c8-ba60-7e5238e707c5.jpg (83.7 KB, 7 views)

1984 GL1200
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post #48 of 48 (permalink) Old 09-04-2019, 12:41 PM
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The brass ring usually fits snugly enough in the head to hold itself in place while you install the header. Those look too small to do that, so...

As far as the sealer goes, I wouldn't use it.

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