Non-Duc problem

Started by LowThudd, November 09, 2009, 03:42:04 PM

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LowThudd

86 Yamaha Radian. It was running along fine, then after some nice speed runs over a series of speed bumps(a dozen or so) it is now idling really high. Also bogs abit with throttle. It appears that I have some fine cracks on the intake boots that weren't there before. I am assuming that is the problem. Sound correct?

cduarte

yes, that will cause that behavior.
build a man a fire and he's warm for a day, set a man on fire and he's warm for the rest of his life...

ducpainter

If by intake boots you mean the rubber manifolds downstream of the carbs, then yes. That would be a vacuum leak.

If by boots you mean from the airbox to the carbs then no.
"Once you accept that a child on the autistic spectrum experiences the world in
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    is even more amazing than yours."
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    Ask a mother who gave birth to a stillborn.
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LowThudd

#3
Yep, rubber between the carbs and engine. Well, that'll be fun to fix. First lesson on my first bike. Thanks.