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01 GS500 will start but will not idle at anything under 4000rpm

Started by huxj500, July 18, 2015, 12:42:37 PM

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cWj

Start by putting mix back at at stock for your year (2.5 turns out? Check your region and a shop manual for correct number). Your bike is stock and should be running with everything at factory settings. There's something somewhere that isn't right. Fix that, then experiment with stoichiometry later (preferably when you have an alternative ride...or time..).

Forgive me if this already been covered, but do the basics: fuel, air, ignition.

Are you getting good fuel? No problems with petcocks or lines? Does going to reserve or prime affect the issue? Is the vacuum line correctly and tightly connected?

What is the condition of the air filter (clean)?  What is the condition of the intake boots (look for cracks, brittleness, places where air can get in? Are either of the vacuum test ports on the carbs uncovered? As somebody else suggested, did you go back and re-adjust your idle air screw?

Are you getting good voltage at battery terminals? Is the system charging? 

The Buddha

Quote from: huxj500 on July 26, 2015, 02:03:51 PM
Ok. I'm back with yet another issue. adjusted valves in which only the right cylinder was tight. now the bike will start right up at full choke but as soon as I release the choke it dies and if I leave at full choke and just slightly give it throttle it dies. any words of wisdom starting to become desperate as this is my only means of transport now

This sounds like a clogged pilot jet.
Cool.
Buddha.
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