GS550E won't Idle for long.

[Raeldin]

Hello all,
I haven't ridden a bike in about 20 years. I recently got a '80 GS550E. It runs good but won't idle for long. It does idle high for a bit then low, then dies. Also dies at stop signs if I am not careful.

I was told when I got it that the rubber boots on the carbs (2 in particular), needed to be replaced because they were cracked and causing a vacuum leak. I have looked at the boots and they seem pliable enough, just wondering how accurate this information was or if it could be something else.

I am wanting to just replace what needs replaced now, and work on restoring it slowly as I ride.

Thanks

[Steve]

Might be the carb boots, but is more likely the o-rings between the boots and the head.


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[SqDancerLynn1]

Could very well be the Orings. You need to replace them & take a close look at the intake Boots

[BassCliff]

Hello Mr. Raeldin,

Welcome to the GSR forums. My esteemed fellow forum members speak wisely. Make sure there are no air leaks, from airbox to O-rings. Air leaks sound like your culprit but I might also add that, depending on the history of the motor, a valve clearance check may also be in order.

The great folks here know all you could possibly want to know about these classic bikes. They are even making a motorcycle mechanic out of me!

Thank you for your indulgence,

BassCliff

[Raeldin]

Long time getting around to this but I did replace the boots and 2 had broken o-rings.

The bike ran great, started great, several times until I pushed it down off the center stand to ride. It won't start at all now.
Opening a new thread for the new problem.