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My '82 GS750E has one of the headers knocked loose from where it meets the collector, this is on the #3 cylinder. I realize this is bad, and won't ride anymore until it's fixed... but could this be what's causing it to idle fast (~3k rpm) and backfire some, especially when backpedaling?
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Yes
Dink -
Indeed.Originally posted by DinkComment
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nice
Cool, maybe only one problem to worry about there. Well except for the thrashed muffler, short in headlight wiring, and broken brake light and turn signal...
Gettin there though. Thanks all.
Comment
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yes it will add some backfiring...but it wont hurt the engine if it's down by the collector.
~AdamComment
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Karens 550 recently had a sheared off #3 pipe at the connection under the engine and it got much hotter than usual, didn't idle well anymore.Originally posted by AODComment
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Yes it will hurt the engine, if left. It reduces backpressure to that cylinder and also the other cylinder that is feed it's pressure wave for exhaust scavenging,Originally posted by AOD
this "un-loads' the rings leading to piston slap, the reduced scavenging leads to excess "bad stuff" staying in the cylinder and builing up carbone deposits etc and then to all the other problems that can come from that. Even a very small exhaust leak, straight away reduces torque and increases fuel consumption, and the reduced backpressure increases vibration, and the increased heat from the air being sucked into the exhaust not only helps erode the pipe shortening it's life it can cause burnt exhaust valves etc.
DinkComment
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