Maintenance & Technical > KX500 Original

Jetting!!! Again and again and again!

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umberto:
That's awesome!  That bike is in too good a shape not to run. Watch out Lake Draper, here we come!

alexander-vmann:
i noticed something weird today, i started the bike (first kick very nice) and it slowly kept reving up as the engine was getting warmer, when the engine was hot it kept going up and down i tried screwing the idle screw out a few turns without success, after a short ride, the bike wouldnt idle at all :? any ideas?

Foxx4Beaver:

--- Quote from: alexander-vmann on May 08, 2016, 01:22:10 AM ---i noticed something weird today, i started the bike (first kick very nice) and it slowly kept reving up as the engine was getting warmer, when the engine was hot it kept going up and down i tried screwing the idle screw out a few turns without success, after a short ride, the bike wouldnt idle at all :? any ideas?

--- End quote ---

possible air leak...
possible dirt/debris in the carb/bowl....

alexander-vmann:

--- Quote from: Foxx4Beaver on May 08, 2016, 01:55:20 AM ---
--- Quote from: alexander-vmann on May 08, 2016, 01:22:10 AM ---i noticed something weird today, i started the bike (first kick very nice) and it slowly kept reving up as the engine was getting warmer, when the engine was hot it kept going up and down i tried screwing the idle screw out a few turns without success, after a short ride, the bike wouldnt idle at all :? any ideas?

--- End quote ---

possible air leak...
possible dirt/debris in the carb/bowl....

--- End quote ---
i recently had the carb out to change the jets, could this be the reason there might be air in the carb and thus why it wont idle since i turned the idle screw to far out?

Foxx4Beaver:
very possible...which way did you go with the jetting, richer or leaner?....and which jets did you change?

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