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just started workin on a '84 yamaha 440, wouldnt start took the carb off and sprayed some fuel in the intake fired up for a few sec.. i drained the tank and cleaned it up, put some new fuel in it, changed the fuel lines. there is a small diaphram fuel pump attached to the main fuel line from teh trank. there is a pulse line frfom the crankcase that goes to the pump and of course an out to the carb.. the fuel line is new and clean and i can visually see that the gas isnt gettiong to the carb.. any help would be greatly appericaited..

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thanks
David
 

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if you haven't done so already, rebuild the fuel pump also check to see if you are getting vaccum from the crank line to the pump.
 
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