89 Johnson 40 hp - Fuel Pump Question

Caddis295

Cadet
Joined
Apr 5, 2010
Messages
29
I recently removed the VRO from my 40 hp Johnson. I was directed to purchase and install the Sierra 18-7352 fuel pump. The install was easy and now my motor will not idle longer than a few seconds.

My question is, should I have purchased the 3 Port Sierra 18-7353 fuel pump and attached the third hose to the pulse port originally for the VRO?

I say this because I think the fuel pump is not working.


Regards,

Caddis295
 

Caddis295

Cadet
Joined
Apr 5, 2010
Messages
29
Re: 89 Johnson 40 hp - Fuel Pump Question

Someone has to know something about these fuel pumps.


Thanks,

Caddis295
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 89 Johnson 40 hp - Fuel Pump Question

18-7352 fuel pump, should work fine with your motor, sounds as if you have a low speed clogged jet. what are your idle rpms. did you plug the old pulse hose?
 

Caddis295

Cadet
Joined
Apr 5, 2010
Messages
29
Re: 89 Johnson 40 hp - Fuel Pump Question

Tash,

The pulse line was plugged. I can prime the motor and it will idle for a short time then die.

I guess I need to take another look at the carbs.


Thanks,

Caddis295
 
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