2000 200hp saltwater series lost fuel prime

[crazy charlie]

Had an occasional issue end of last season.After a long idle ride down a long canal we bogged down and stalled.Primer bulb needed pumping and started right up .Did this a few times while canal idling.always needed primer bulb pumping.Changed out fuel water sep,main fuel filter on motor,both fuel pumps and VST filter.Also 2 cycle oil filter(what a stupid placement of that filter) .Did I miss anything?? Havnt taken it for a run yet.Charlie

 

[dingbat]

Check the anti-siphon valve.
If it sticks open or is missing, a leak upstream will allow the fuel to drain back into the tank

 

[crazy charlie]

Check the anti-siphon valve.
If it sticks open or is missing, a leak upstream will allow the fuel to drain back into the tank

Do you mean inside the primer bulb??because I replaced that too.If not,where am I looking for this valve?? Thanks Charlie

 

[dingbat]

Do you mean inside the primer bulb??because I replaced that too.If not,where am I looking for this valve?? Thanks Charlie

No.....the anti-siphon valve is typically built into the fitting where you connect the fuel line to the tank.

Bear in mind that this can only be a problem if you have a leak (vacuum) somewhere in the fuel system.

 

[mike_i]

Is the tank vent clear? Make sure all hose clamps are tight and secured. I had the same problem once and found a loose hose clamp.

 

[crazy charlie]

yes tank vent clear but easy enough to check clamps though Yamaha likes zip ties.Charlie