Question about Suzuki GS 500 E Motorcycles

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I have a 92 GS500E and I am having a problem of idle raising as engine gets warm and it seems to take awhile to "wind down" (back to idle) when the throttle is twisted. I have reseal the carb intake to the head, rubber is in good shape, replaced philips screws with allens, new hose clamp to tighten carb to boot. current jets: pilot is 40 with screw 2.5 turns out. Needle clip is 2nd from top, main jet is a 26. I am at sea level. sprayed some starting fluid around to try and find air leak, no help

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Since some of carb are pneumatic drive it depends on air intake as you move the throtte and the idle wont back to normal when your bike is warm..the trouble is in the carb flapper,it is a flat shape steel that contols the air flow of the carb,if you can find a spare for that..better

Posted on May 29, 2017


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Posted on Jan 02, 2017

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SOURCE: 2005 ktm 520 won't idle, cleaned carb new diaphram

did you try adjusting the air fuel mix screw?

Posted on May 21, 2009

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SOURCE: I hear talk of an air jet for the mukuni bs34

I believe they are referring to the nozzle the needle goes into. A venturi effect is created by the position of the nozzle in the throat of the carb. The nozzle has holes in it and the fuel is sucked through the main jet and out the holes to mix with the rushing air as the needle raises. Beyond that I haven't got a clue.

Please rate this solution. Thanks!

Posted on Jun 09, 2009

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SOURCE: I have a Yamaha Vmax

Hello again, Some more things to check. Your our spark plug caps unscrew from the ends of the wires and they should test with a voltage meter at 5000 OHMs. If they test higher or lower replace them. NGK caps run about $5 each Yamaha caps about $30. As far as the high idle you have a part that is in the middle of the throttle cables(connecting the handle bar cables to the carburetor cables) called a "geared motor complete" PN# 1FK-85850-00-00. If you go to on the "pick up coil governor" microfiche page for your bike you can see the part. You could probably observe if the "geared motor" is holding the high idle if you have the fake tank shrouds off. Yamaha has this device on there Venture's too. I have seen very few malfunctions in it but it may be a culprit. A service manual may give a test for this device. If you know someone that would let you swap parts you may be able to figure out if this component or the V- boost control unit are at fault. Tight valves may not open unless the motor is really hot . If you swap shims around in the motor you may only have to buy or exchange 3 to 5 shims at the dealer. At any rate you can check the valve clearances with a feeler gauge to rule this possibility out.

Posted on Sep 24, 2010

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SOURCE: I have a 2003 kx

if your still fouling plugs then you still need to go with smaller # on main jet...are you spooging allot out of pipe and muffler? then your to rich still,smaller jet size!!!! 32:1 is a good mix ratio

Posted on Sep 27, 2010

  • 496 Answers

SOURCE: engine cuting out just brought

what kind of ktm is it do you know the year is it two stroke or four. please inform me of the missing info and i'll be happy to help

Posted on May 23, 2011

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