Yamaha 220 stalling under load

[John Dc]

I have a yamaha 220 V6 autolube I think its about an 88' it runs fine out of the water on muffs idle and it also revs up nicely in gear and out of gear, I put it in the water and again it runs fine I put it into gear and it runs slowly, when I go to throttle it, it stalls on me, out of the water with no load there is no prblem ! any ideas ? I think it's a fuel stravation probem of some type but I thought it was odd that it doesnt happen out of water !

Any help would be much appreciated

 

[rodbolt]

Re: Yamaha 220 stalling under load

dont put it in the water, problem solved, if all you wish is RPM's simply throw the prop away.
however if you wish to use it then test compression,test spark, if they pass then rebuild the fuel pumps, may be two may have 2 and a primer pump, and rebuild the carbs.
post the model number and I may be able to get more specific.

 

[Ray Neudecker]

Re: Yamaha 220 stalling under load

That model has two pumps. You also need to bypass the fuel disconnect and the engine mounted filter.