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1996 Suzui King Quad - RPM Not Backing Down Once Throttled

ctd440

By ctd440
in Suzuki ATV Forum

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ctd440 Rookie

ctd440

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I cleaned the carb out and set pilot to factory settings. idles fine but when I throttle the engine up the rpms do not back down very fast. does this mean I am running too lean? the cable does not appear to be sticking as I still have the side still off and can watch the cable.

any help is appreciated.

swampcat07 Grand Master

swampcat07

Posted
Posted

The slide on the needle might be sticking. I know on my quad I enlarge the slide hole slightly and clip a few coils off the spring. If you had it working well before I would skip this step and just make sure that the needle and spring is seated correctly.

Mudflap64 Collaborator

Mudflap64

Posted
Posted

Check the choke circuit and look for possible vacuum leaks. It could be a bad fuel shutoff valve as well, even a dry rotted intake boot can cause what you are describing. I'd give it a ver thorough inspection.

ctd440 Rookie

ctd440

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well I had time to check it out. found exhaust valve almost .025 previous owner rebuilt engine. 2 months ago (this is a quad new to me) starts fine cold but harder to start warm so I am going to check the valves again

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