Plumbing kicker motor (4stroke) to the large main boat tank

[Wrestling Coach]

I want to plumb my kicker (9.9 Merc Pro Kicker 4 stroke) to the main tank. What hardware would I need. Would a check valve/primer bulb be needed to prevent the kicker from pulling fuel and air from the main motor (150 Mariner EFI 2 stroke)

Edited November 5, 2020 by Wrestling Coach

[Big Spoon]

I used a fuel filter assembly which has 1 intake and 2 outflows for the fuel lines.  I added a check valve between the fuel filter and the motor on each fuel line and have not had any issues.  Running a Yamaha 115 4-Stroke and Yamaha 15 4-stroke, FWIW

[Diversion]

Big Spoon, do you have a link to what check valve you used?

 

[Big Spoon]

Here’s the one I used (had to get a 5/16” for my kicker fuel line)

https://www.amazon.com/dp/B07GV7KVXJ/ref=cm_sw_r_sms_api_fabc_BFaPFbM4YKKPR?_encoding=UTF8&psc=1


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[Wrestling Coach]

Thanks. Now let me offer this. This new to me boat does not have a fuel/water separator. If I added a fuel/water separator with dual outflows and went to each engine from there I should end up in the same place. Yes or no?

[Big Spoon]

19 minutes ago, Wrestling Coach said:

Thanks. Now let me offer this. This new to me boat does not have a fuel/water separator. If I added a fuel/water separator with dual outflows and went to each engine from there I should end up in the same place. Yes or no?

 

Yes, and it would be cheap insurance against bum fuel.

[Wrestling Coach]

OK. I’m headed down that path. Thanks

[stinger]

The primer bulb for each engine fuel line has a check valve in it already.

[Wrestling Coach]

Understood 

[L&M]

6 hours ago, stinger said:

The primer bulb for each engine fuel line has a check valve in it already.

That they do but not to be trusted in themselves

 Use an anti siphon valve or the above style in addition too. 

[Wrestling Coach]

Are you saying anti siphon in addition to fuel/water separator?

[guffins fisherman]

No. Pretty sure separating fuel lines at the filter will fit your needs. Filters your fuel and inhibits sucking one or the other dry.

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[SylvanTroller]

Are you saying anti siphon in addition to fuel/water separator?

I have added an anti siphon to my kicker fuel line at the fuel water separator and it works great.


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[Wrestling Coach]

Thanks all for your input.