Picked up a 82 GS1100G with 7900 miles on it. Hasnt moved in 10 years because of a supposedly cracked head. Was told this is a common problem on the air cooled motors? Do they tend to crack in any specific area? I just want to make sure before I spent the money on a dye kit or a new head.
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I have never heard of a cracked head on a Suzuki GS. -
Me either.Comment
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Neither have I.
I guess it could happen -- you'd want to examine the usual spots around the spark plug hole and valves, but it sounds very unlikely, especially on an 8 valve shaftie engine.
More likely, it started leaking or something and someone didn't want to replace a gasket.
The valve covers sometimes crack when some goober over-torques the bolts, but these can be repaired by any competent shop that does aluminum welding -- they're just a non-stressed cover. Maybe that's what happened, and the story got garbled over the years.1983 GS850G, Cosmos Blue.
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Eat more venison.
Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.
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Co-host of "The Riding Obsession" sport-touring motorcycling podcast at tro.bike!Comment
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I can't say I've heard about any cracked heads out there.Comment
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I think the story got garbled--the PO was a crackhead for letting the bike sit for 10 years.Comment
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Cracked head?? What a bunch of BS. I'd pull it apart and have a look. While you have it apart, since its been sitting so long, do the cleanup/refreshing derigur found on BassCliff's super huge monumental amazingly thorough official unofficial greeting. You might be suprised that if you do all the steps, that bike might fire right up, and be ready to roll (with some new tires of course) I happen to have an 82 1100G, and can attest to the fact that it is an AMAZING machine, with more power than you can shake a stick at. I have shaken a couple sticks at it, and it sluffed it off, gave me a cold stare and went on about its business.Comment
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If its the 16V motor then I have one!!!!!
No's 2 and 3 crack across between the valve seat and the spark plug hole. Had mine time certed and it runs just fine. I've been told by Suzuki Gb mechanics that this is a common fault on the 16V motors. If you could find a new head and you installed it the likely hood would be that it would crack within 2 years.
I'I did the pictures out.
Suzuki madComment
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The 8 valvers crack the same as the 16s do. It doesn't happen as often but it still happens. It happens in the same place too! From the exhaust seat to the spark plug hole. So, to "No way Jose" & you others that have never seen or heard of it, NOW you have. TRUST me, it happens! The 16 valve head that Posplayer just brought me to reinstall on his engine had one cracked chamber. His bike fired up & runs fine. Ray.Comment
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i guess i'll have to pull mine off to see if it's cracked in the meantime
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I'm with the no way Jose crowd. Worked in the business for a very long time and cracked GS heads are extremely rare IMHO. Get the thing running, clean it and spray aerosol foot powder on the suspect area and watch it closely. Let us know what you find please.Comment
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Rapidray has torn more of these motors apart than all of us put together.
If he's seen some cracked heads then it can happen.Comment
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Humor me...
You have a person that parked his ride because of a "cracked head".
does it look like someone had it apart? how did someone come up with this diagnosis,
low compression between two cylinders?
do yourself a favor, pull the cylinder head cover and check the valve clearances first.
i'm going with the answer being... crack headComment
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Mine had so much carbon it it that that it was far too reinforced to crack!
This forum has everything except a pictorial on how to repair a cracked head. When can we expect one?
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