Suzuki Quadrunner 250 4x4 carb problems? - Suzuki ATV Forum
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post #1 of 1 Old 05-14-2011, 07:52 PM Thread Starter
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Join Date: May 2011
Location: Kentucky
Posts: 13
Suzuki Quadrunner 250 4x4 carb problems?


I have a 1997 Suzuki Quadrunner 250 4x4. I just got it this past january, it sat for nearly 6 years without being run due to carb problems. When I got it I thought that it just needed cleaning, but when I took the carb apart to get to the float chamber I noticed a lot of old gas had built up around the jets and froze the float. So I took some carb and choke cleaner and cleaned it as best as I could and got it to rev up some but it died.

After that I had found that the fuel adjuster was broke, so I ordered another one thinking that would fix it, but when I screwed it in it kept doing the same thing, I couldn't even rev it up that time or keep it at idle. Thats when I thought it might be a bad fuel pump. But when I took it apart everything looked fine, so I put it back together and noticed a vacuum hose going to the carb. So I thought that it might be dry rotted, but it was good. so then I took the plastic off to try and trace back the hoses and found one hose coming from the carb but at the other end of it just has a plastic 'T'. So I just assumed it might be another vacuum hose so I left it alone.

I heard someone say that they were having the same problems I am having of not idling or revving up and their problem was a bad voltage regulator. So I took mine off and took it up to a mechanic to see if I could get it tested. But when I told them what was happening they said it was carb problems. So they told me that either the rubber diapraighm in the carb had a hole or the jets were bad. So I bought some stuff to soak it in and soaked it for a couple of days, it got rid of all the old gas in the carb and cleaned it up real good, but when I put it back together and tried to start, nothing happened. I can't even hear the motor turning over anymore and sounded better before I cleaned it.

If anybody has any suggestions or ideas please let me know. I'm starting to beat my head against the wall trying to figure it out.


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