Fuel line size between carbs on 78 75hp Evinrude

[shawn.54]

Want to replace fuel distribution lines on my 1978 75hp Evinrude do not want to disturb lines until I get new to replace them could anybody tell me what size line I need thanks in advance

Shawn

 

[Chinewalker]

3/16", rated for ethanol use.

 

[shawn.54]

Ok thanks a lot will get that and try to replace before weekend thank you again Shawn

 

[shawn.54]

What about line from pump to middle carb my boat is out without me this week having fun while I'm at work.

 

[Chinewalker]

Typically the larger hoses are 5/16" and the small bits are 3/16". If you have several feet of both, you'll have your bases covered.

 

[shawn.54]

i noticed that 1 of the lines looked distressed so I will replace all thanks again for the help.

Shawn

 

[sutor623]

Typically the larger hoses are 5/16" and the small bits are 3/16". If you have several feet of both, you'll have your bases covered.

Chine, I thought the distribution lines from main to carbs was 5/32"?

 

[gm280]

Obviously there are many folks with many ideas as well about what size fuel lines to use. If you really want to get serious about fuel line size, you could calculate what the maximum fuel your engine could possible use at WOT and then do the math to see what size fuel lines can provide. That IS what the design engineers do. But I say skip all that and buy what is originally on there now and happy boating... It really isn't that difficult! JMHO!

 

[Chinewalker]

Chine, I thought the distribution lines from main to carbs was 5/32"?

Could be what was on there originally. I've been using the 3/16 lately as I have a spool of it onhand...