Question about Yamaha 12V Air Pump

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I have a 2001 Yamaha Waverunner 800XL. It has worked well in the past, but now when I start it the motor revs high and it takes off out of control. The speed can be slightly controlled by the choke. The jetski repair guy I took it to thought the carbuerator needed a new diaphram (something like that...not sure) but the part came in and it didn't fix the problem. He's scratching his head now and it seems like no one works on jet skis anymore? I have read somewhere on the web that this is a common problem with this model (I wonder why no recall, as dangerous as it is) but I can't seem to find the info anymore. Any ideas?

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Hello. These waverunners have a problem with throttle cable corrosion. When the cable corrodes you get that reving and lack of control
replace the cable and solve the problem. J.

Posted on Jul 09, 2010

  • judisunshine Jul 10, 2010

    Thanks for your suggestion. According to the repairman, the cables are fine. He has also lubricated them (not sure what he used). Is there anything else you can think of?

    Judi

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