Bypass fuel fitting

[mav6759]

Quick question, I have a Evinrude 1989 155hp. I want to by pass the fuel fitting on the motor and run my fuel line straight to carbs's. Some people I spoke too at the dock said it's better to run a straight line to the crab's and eliminate the fuel fitting on the motor. I know I'm going to need one for the tank, but is one necessary for the motor, I want to know if that is possible, and if it is, do I still need a primer bulb.

Thanks,
Mav

 

[boobie]

Re: Bypass fuel fitting

Just bypass the connector with some fuel barbs and yes you need the primer bulb.

 

[71Windsor]

Re: Bypass fuel fitting

I don't really understand what you would gain by doing this though? On my engine I replaced the fitting that passes though the hood with just a straight pass through fitting. Which is what I think the fellas at the dock were talking about. The OEM fuel fitting at the hood has a check valve which can some times get stuck and be an issue. I would either remove the inners of the valve or pickup a new fitting.

 

[emdsapmgr]

Re: Bypass fuel fitting

A commercial engine. That's a good idea. Remove the existing fuel connector in the lower cowling. Remove the fuel connector from the engine end of the fuel supply hose. Thread the hose end through the new hole in the cowling where the old connector was. Connect it direct to the plastic hose barb (inlet) on the white in-line fuel filter. By doing this, you've eliminated a potential air/fuel leak point at the old connection. The engine won't know the difference. I run all my engines direct like this.

 

[brim_buster]

Re: Bypass fuel fitting

A commercial engine. That's a good idea. Remove the existing fuel connector in the lower cowling. Remove the fuel connector from the engine end of the fuel supply hose. Thread the hose end through the new hole in the cowling where the old connector was. Connect it direct to the plastic hose barb (inlet) on the white in-line fuel filter. By doing this, you've eliminated a potential air/fuel leak point at the old connection. The engine won't know the difference. I run all my engines direct like this.

myself as well...