700 mm gas falls from carbs

katos

New member
Joined
Oct 5, 2015
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12
Location
hilliards, pa
Does anyone know why the fuel seems to fall away from the carbs when they sit for a while on Yamaha 700 triples? IE mountain max. I have even asked at shops and people just seem to live with it. Any chance part 8CR-24301-01-00 should act as a check valve? Isn’t priming at low engine speed, has an air leak? I assume this primes the fuel pump?
 

Could be a float or floats that are varnished up and too heavy to float to the top and make the float needle seat. It Could be junk stuck in the float needle seats. At any rate, I believe the problem is related to the float bowl or float bowls.
 


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