1994 15hp Gamefisher model 225 581 496 throttle cutting out???

[nickrm]

15 hp gamefisher just got it, took it out today. after Changing the; plugs, impeller, lower gear oil. it ran great for a while, then it started to sputter and I couldn't get full throttle. So I put it in neutral, gave it some gas and I could get full throttle, so its getting fuel. After doing this the motor would run great, but the process would start over again. It happened several time. Any ideas. this motor is a 1994 and this was the third time it was in the water.

thanks Nick

 

[pwilke]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

Could need a carb cleaning or rebuild. good luck

 

[jerryjerry05]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

Sounds like water in the gas.Possible diaphram going bad.Gunk in the carb.

 

[nickrm]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

where would the diaphram be??? is that something I could change myself, mechanical skills are mmmmm ok.

 

[carholme]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

Nick;

Here is a 15 hp Gamefisher parts listing:

http://www.crowleymarine.com/mercury-outboard/1477.cfm

FUEL AND RECIRCULATION SYSTEM item 30 for the diaphram

Before you split the fuel pump, you could check the filter, item 17, for any crud.


Gerry

 

[fishrdan]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

I would definitely change the fuel pump diaphragm kit as ethanol is hard on those old rubber parts. If ethanol hasn't torn it up, then 15years of age took it's toll. Just change it, you will be glad you did. The biggest pain is getting the hoses on/off the pump, the rest of it is a snap. Remove 4-6 screws, replace a couple gaskets and rubber parts. Probably took me 1/2 hour,,, 15 minutes of that was cussing the hoses on/off.

But, from your description, it sounds like you might be sucking air into the fuel line. While the OB is experiencing the problem (running WOT), squeeze the primer and see if the outboard responds. If squeezing the primer bulb makes it run better, start looking at the fuel hose, fittings and tank, look for a fual/air leak. (If you need a new fuel line quick disconnect for the OB, don't get a "Mallory", mine only lasted for a couple months, then started leaking again, poor design.)

If that's not it, I'd look at rebuilding the carb as suggested earlier.

 

[nickrm]

Re: 1994 15hp Gamefisher model 225 581 496 throttle cutting out???

wow, this site is unbelievable thank you all for the great info!!!!!!!

fish on!!