Ok ..most of you know about the trial I've had with my 4 HP Nissan..First the dealer set me up by packing grease and metal shavings in the carb..I called Nissan to no advai..Anyway ..here are the sequence of events..see if one of you mechanics can figure out the problem..GOOD LUCK
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My boat is to small for the auxillary gas tank so I run my motor on my inline tank..holds about a gallon.

A.After about 9 months motor won't start.

B. Carb was filled with grease..WHile trying to clean up I messed up the float...I bought a new carb.

C. I removed all extra gas hoses and ran a straight line from tank to the carb..in between is the cam driven fuel pump and inline filter
Set up is in shape of an upper case J
tank on top..fuel pump on bottom and the carb at the top of the hook ..

D...still won't run..oh.. it runs for 1 minute and stops..

E. I buy a new fuel pump..

F. Same thing ..runs for a minute and stops } - :

G. THE VENT IS OPEN ON THE TANK

H. FILTER IS NEW AND GOOD

I. Lines are straight no kinks

J.All clamps are tight no vacumn leaks..
GOOD LUCK...

Hint...it is nothing electrtical or thermostastically ..new spark plug as well..magneto is fine..gas is fresh..
It's running now..and not shutting off..what was wrong with it.?.I'll give you all one week..LOL
Chuck7

TOOK 60 seconds to fix } -: