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 How long a fuel line will a 40efi fuel pump pull through?  
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Post How long a fuel line will a 40efi fuel pump pull through?
I'm looking to relocate my fuel tanks to the front of the boat, but before I run 20ft of line, how well do these 40 efi ful pumps pull through a 3/8 fuel line?
I'll post a pic of how I plan to run it, but itll be roughly 20ft of total line with an abrupt 9" rise from tank to gunnels then 14ft run to the motor.

Pics to follow.


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Wed May 01, 2019 9:35 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
My tank is run up front my 18 foot crawfish skiff with no problems at all running a 40 eft bro


Wed May 01, 2019 10:35 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Length is not as much an issue as diameter - smaller is better - use 1/4" line instead....

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Thu May 02, 2019 5:19 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Thanks guys

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Thu May 02, 2019 6:21 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Thu May 02, 2019 6:45 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
I'll never run smaller fuel line than the size of the fuel pump inlet and outlet. My carb is 5/16, fuel pump is 5/16, 1/4 has to run faster through the line. Same concept as plumbing your house. The feed line shouldn't be smaller than the lines in your house. You're actually forcing the fuel pump to work harder.

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Thu May 02, 2019 7:32 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Agree with Russ.

Buzz, my 40 is modded, tank up front and 5/16" line all the way. Probably 20-25' total with no issues. I'd say 16-21' feet between pump and tank.

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Thu May 02, 2019 7:55 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Thu May 02, 2019 9:25 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Put a bulb, then the lift pump will do its job.

Hell the pulse pumps pull 25' no problem

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Thu May 02, 2019 10:13 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Thu May 02, 2019 1:09 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Thu May 02, 2019 8:39 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
So does mine and I don’t have any issues at all bro


Thu May 02, 2019 10:31 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Well I'm going to try it, thanks all for the feedback
I wont be doing anything until after this weekend. Walleye tournament on the Bay of Quinte in Ontario.

I will be the only mudmotor on the water - guaranteed.

But I also make a point of never messing with something that is currently working before needing to use the boat. The line is run, all I need to do it hook it up and try it out.

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Fri May 03, 2019 3:53 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Sounds like a good time bro. Them people up there are going to look at that rig like crazy lol they don’t know what that is up there lol


Fri May 03, 2019 5:40 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Within 15 mins at the ramp
Multiple pictures, lots of questions, tons of talking

Lol

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Sun May 05, 2019 7:39 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Hahahahaha that’s awesome lol


Sun May 05, 2019 8:37 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
5/16 would be the best for your fuel line,3/8 will also work .gl

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Mon May 06, 2019 6:23 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Bigger the line the weaker the pulse. 5/16 max


Mon May 06, 2019 8:08 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Tue May 07, 2019 6:24 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
Russ giving me shit this morning so here is my defense :lol:


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Tue May 07, 2019 7:38 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
When is Russ not giving somebody some heat? Lol good ol Russ :D


Tue May 07, 2019 8:46 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
When Russ finally finishes this magical build he’s been after, we can take him serious again!


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Tue May 07, 2019 6:48 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Wed May 08, 2019 5:21 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
I run approx. 25' of 5/16'' fuel line on my 40 briggs. no problems.


Sat May 11, 2019 8:06 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
So I gave it the ol college try this past week with seemingly no issues.
I think I'll add a bulb to the line though....

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Sun May 12, 2019 6:57 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through
I always put a bulb to make it easier to prime, and if that lift pump fails you can keep fuel in the fuel pump module with the bulb.

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Tue May 14, 2019 5:18 am
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Post Re: How long a fuel line will a 40efi fuel pump pull through


Tue May 14, 2019 5:30 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through
I have a bulb in mine as well


Tue May 14, 2019 5:41 pm
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Post Re: How long a fuel line will a 40efi fuel pump pull through

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Wed May 15, 2019 6:07 am
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