Question about 1997 Suzuki GS 500 E

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Delay of power

I bought my 97' Suzuki GS500E a couple years ago and always had problems with it idling at about 3,000-5,000 rpm, finally tore it apart and just needed to fix the valve shims! The compression was about 20psi in one cylinder and 120psi in the other. Cylinder walls, pistons, rings, etc were all still in good condition. Now the bike is idling fine but compression is around 75psi in each cylinder! Now the problem: when I come to a stop or slow down, then try and get back up to speed the bike drops in power and after a second or two it finally kicks in and speeds up, this can be annoying when trying to keep up with traffic! It also does this no matter how fast I'm going, at 70mph it still takes forever to finally get the power I need. Anyone have an idea what this could be caused by? I've completely cleaned the carbs and the valve shim problem fixed the idle and definitely helped out the compression.

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  • cooterpanda May 17, 2009

    Well, that makes sense; however I have read the manual and it doesn't indicate that there is an accelerator pump! They are Mikuni carbs, idk if that makes any difference. Also I have a 1981 Honda CM400E and there is an accelerator pump on those carbs and I checked that and it now works fine, I've torn apart and cleaned the carbs, blew out the jets, etc. Can you clarify or point me in the right direction of the "said" accelerator pump?



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Accelerator pump portion of the carburator. Small lever pumps extra fuel anytime the throttle opens. With bike off and air cleaner removed you should be able hear squirting and smell gas when twisting throttle. Check mechanical link, low fuel level in bowl, blocked port etc.

Good luck,

Posted on May 17, 2009


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