Yamaha 115 4 Stroke Cranking problems

[502fast]

My 2003 yamaha 115 four stroke doesn't want to recrank after it gets hot. Acts like it's vapor locking. If I pump up the bulb, open the throttle up and crank on it for a while, it usually cranks and runs fine until I shut it back off.<br /><br />Tks in advance

 

[502fast]

Re: Yamaha 115 4 Stroke Cranking problems

Any ideas, help!

 

[rodbolt]

Re: Yamaha 115 4 Stroke Cranking problems

hello<br /> the average back yard guy cant do much with EFI. first you need to verify spark then fuel rail pressure. after that its a matter of checking all the sensors for in-range failures.<br /> good luck and keep posting