02 Yamaha 200 not getting fuel?

[martyn8677]

Hello everyone, I just bought this used boat a few weeks back. Motor is a 4 stroke 200 with about 450 hours on it. Starts right up, idles perfectly. Last time out, I put the hammer down to get up on plane and after running a little, motor just died. Started right up and idled but when I give it gas it dies. My buddy noticed the ball on the fuel line was collapsed (all sucked in). Figured I had a bad ball, so changed it. The new one will not get hard when pumped. I don't have a lot of mechanical experience, but am guessing there is a blockage between the gas tank and ball. Any advice would be appreciated.

Thanks.

 

[zzzzz]

Re: 02 Yamaha 200 not getting fuel?

the arrow on the bulb should point toward the motor and lay level - if not pointed up a little....if the arrow points down -the check valves in each end of the the bulb won't work and it won't pump up....as for the bulb getting sucked flat - that indicates a restriction - check the antisiphon valve on top of the fuel tank

 

[99yam40]

Re: 02 Yamaha 200 not getting fuel?

A fuel pressure/vacuum gauge teed into the fuel line at different places will show you what is going on and where the restriction is or at least where it is not

 

[gill]

Re: 02 Yamaha 200 not getting fuel?

check the vent on the fuel tank

 

[JUSTINTIME]

Re: 02 Yamaha 200 not getting fuel?

sucked flat is a bad vent or anti siphon valve