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Discussion Starter · #1 ·
Just purchased with 110 hours. Two issues. At start up hesitates acceleration until about 20mph then able to accelerate to higher speeds. Possible causes?

Second issue. After running for about an hour at full throttle then during slowing down to idle ski stalls and wont start. After 1/2 hour ski starts as normal. Possible cause? Are the two issues related.

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Discussion Starter · #4 ·
Have changed the plugs as suggested. This did not resolved the two issues discussed. Is it possible that the Pressure Sensor Map switch(intake pressure sensor)(6S5-82380) maybe defective and as a result is the cause of one or both of my issues? Anyone with any experience with this sensor?
 

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1986 FZ 600
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Not sure about the sensor but the running for two hours then not starting maybe. Check your fuel tank vent tube isn’t kinked or blocked. Next time it does it remove your fuel cap and then try and start. A blocked vent tube can cause you to pull a partial vacuum in the tank and restrict fuel flow. Not common but has happened.
 
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