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94 750 begins running half thottle after 30 min

I have a 94 Kawasaki 750 and about 30 min of fun the boat begins to run like it has a weight ataached or 4000 rpm max. I replaced the coil pack, rebuit the carbs, The boat will immediately start and run for maybe 200 yards and then it does the same thing all over again. This will happen over and over. The next day the same thing after about 30 min the boat starts stalling.


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Fuel system has to hold 3 to 7 psi for ten minutes. fix any leaks. Check to make sure that your water temp sender is working right and or that the water system is not clogged.
If it thinkd that it is over heating the rev limiter will drop to a lower rpm. hope that helps

Posted on Jul 23, 2009


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