115hp 2 stroke and quick connects.

[lapl0007]

Looking to add a 12 gallon fuel tank as a secondary tank for a trip to Canada. Want to increase range.
What I would like to know is if anyone has has success with adding a quick connect in the fuel line at higher HPs (like my old 1983 115 merc 2 stroke) and not having fuel flow issues.

Is there a reason a regular 9.9 style quick connect off a 6 gallon set up wouldn't work at higher flow?

 

[Chris1956]

Different quick connects use different fuel lines. You need a quick connect for 3/8" fuel line.

Make sure the quick connect seals when disconnected, or it will suck air into the fuel system.

You might use a fuel selector valve instead. A much better idea as they should seal well.

 

[Grub54891]

What Chris said. If you go with a quick connect, I prefer the Chrysler round connecters above the regular two pin connecters. They seal well and don't leak for me.

https://www.agrisupply.com/chrysler-quick-connector/p/20428/?msclkid=4c7645b552b41e72f6502da8b8f6377e&utm_source=bing&utm_medium=cpc&utm_campaign=NB_PLA_AllProducts_BING&utm_term=4582352163387562&utm_content=All%20Products

 

[lapl0007]

What Chris said. If you go with a quick connect, I prefer the Chrysler round connecters above the regular two pin connecters. They seal well and don't leak for me.

https://www.agrisupply.com/chrysler-quick-connector/p/20428/?msclkid=4c7645b552b41e72f6502da8b8f6377e&utm_source=bing&utm_medium=cpc&utm_campaign=NB_PLA_AllProducts_BING&utm_term=4582352163387562&utm_content=All%20Products

Have you used them in larger outboards? Ive used similar ones on a 25hp outboard and worked fine, i but them on my 115 and they restricted flow causing bogging at anything over 75% of wot.

 

[Grub54891]

Have you used them in larger outboards? Ive used similar ones on a 25hp outboard and worked fine, i but them on my 115 and they restricted flow causing bogging at anything over 75% of wot.

You have to get the correct fitting for proper fuel flow. There are several sizes.

 

[lapl0007]

You have to get the correct fitting for proper fuel flow. There are several sizes.

That is literally my question...literally.
3/8 tube to xxxxx quick connectors.

 

[Grub54891]

Seachoice Chrysler Fuel Connector – 3/8” Female (Model 20701) | Stealth Craft Boats

stealthcraftboats.com

 

[lapl0007]

Have you used it on higher hp motors. Anything 115 or above?

 

[Grub54891]

I haven’t myself but I’ve seen them on bigger outboards. Those belonged to other customers.

 

[Chris1956]

Most 115HP motors like yours will be ok with 5/16 id fuel line. Larger HP motors including Merc V6 motors need 3/8" or larger. I understand what you are trying to accomplish, but sometimes quick connects can starve to engine of fuel. I do not think it is an issue with the IL6, but watch for RPM drop at WOT.