I'm having a throttle problem with an old Kawasaki KE175... it seems to be sticking?

  • Thread starter Thread starter Will O
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Will O

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The throttle works most of the time, but when you slam it on hard (not super hard, just unusually hard) it sticks and the RPM's jump up, fast enough to get past redline within about a second. I looked in the engine, and in the carbs, the... I think it's called the throttle valve? It's the big golden thing that slides up and down inside the venturi as you turn the throttle. It looks like it gets stuck about 1/4 inch above when it should be, and then, once you hit the kill switch (pretty fast, because the rpms jump so fast) and the engine starts to die it will stay stuck open until JUST as the engine is dying out and then it will fall closed.
Also, and this is possibly unrelated, I noticed that the throttle seems to be a little sticky in general. If you put it to about 5k rpm's, even in neutral, when you let go of the throttle it might even jump up a little bit to 6k but then takes maybe 2-3 seconds to get all the way back down to idle. I though maybe something is sticky in the carbs, but I dont even know where to start looking. It's just the one carb because this is a one-cylinder bike.
thanks
 
So the same thing happened to me about 4 months ago, what I did was took it into the shop and had them look at it for cheap. When they told me what was wrong I wrote it down and I bought a book about mechanics, then have a friend that is handy come over and we fixed it. We took the body off and gave it a tune up
 
'Venturi slide' can be cleaned easily without removing. Spray throttle body cleaner on it. Cheep at Walmart.
Most likely it is the cable or throttle grip assembly
 
Your throttle cable maybe out of adjustment and is pulling the slide out too far to the point that when it drops down the slots are lining up with the little guides inside the carb body. However I don't think this is likely. I think you need to take the slide out, clean the carb and slide with some carb cleaner and reinstall then oil the throttle cable and adjust it properly and you'lll be good to go. You might want to remove the throttle cable and examine it to make sure it isn't kinked or fraying on either end where it enters the cable housing. Good Luck
 
hi, it sounds like you need to remove and lubricate the throttle cable,
if it looks damaged change it for a new one..regards steve..
 
i recommed takng it to a shop just getting them to look at it and if you want to fix what they said you can they normally dont charge anything at least they dont for honda bikes and forewheelers thats looking to see whats wrong might charge like $10 max probly =p but i dont know kawasakis
 
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