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Hey every Ive got a 82 GS650glz, there is a screeching noise coming from the engine. At first it only did it when it was cold and only once in a great while, but as all noises do, it has become an almost constant thing. Now if the bike is moving and the RPMs are above 2000 it screeches. If pull in the clutch is stops after the RPMs come down. At first I thought it was the oil pump going bad. I went in and replaced the oil pump and noticed the clutch was almost gone so I rebuilt that as well, just in case that was it. Now Ive got a new oil pump, rebuilt clutch and still the screeching. Ive got no idea what to do now ANY help would be amazing! Thanks!!!
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does it make the sound in nuetral above 2,000 rpm? did you swap out the complete clutch? how did the clutch bearing look? are the clutch plates all true (flat) and in spec. does it do this in nuetral? my tach screeched when the weather got cold. not anymore tho since i got it lubed up proper. when it screeches whats the temp outside?Last edited by Guest; 02-18-2010, 11:09 PM. -
I bet it's the cams. If they have been doing it for awhile one or the other is toast.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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It does not do it in neutral. I replaced the plates and springs the bearings all looked good. It used to only do it when it was cold outside and the bike was cold, now its all the time, temp outside and of engine doesn't make a difference.Comment
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I would be surprised if it were the cams, I just rebuilt the top side last year and the cams were good no wear. Also the bike only has 9000 or so miles on it, It sat for 15 years before I got it and restored it.Comment
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It's where the cams run in the caps. (bearings)1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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Had a bad transmission bearing on a few Yamahas, they skreeched under load. Bad ball or roller bearing sound is kind of a skreech.Comment
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Cams may have been running a bit starved if the PO even changed oil once (I've seen it)
. Can you tell where the "screech" is coming from ie. top or bottom end? Usually a high pitched screech/whine is something that doesn't go away as it usually indicates metal on metal, somewhere...
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