Accel Pump (changed diaphram) still no squirt...

3 replies to this topic
  • motocrosschump

Posted September 12, 2004 - 04:14 PM


I am helping my bro putting is bike together. And the carb spray stream is more of an boil instead of a squirt. I cleaned the carb out as best I could, it will squirt if I shoot carb cleaner through the hole, but not when hooked up the gas line. What am I missing.

  • motocrosschump

Posted September 13, 2004 - 04:01 AM



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  • sirthumpalot

Posted September 13, 2004 - 04:15 AM


No way to know without taking it apart. Take the pump apart and look for a torn diaphram or a lot of junk in there.

  • Rick_Kienle

Posted September 13, 2004 - 12:38 PM


The diaphragms can wear out, even if they are not torn. Pro racers change them every 1-2 races.

Also clean the float bowl and AP passages with carb cleaner. If that doesn't work try soldering shut the leak jet.

Yamaha Tech Article: Cleaning AP Passages

Yamaha Tech Article: AP diaphragms

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