What's the Preferred Fuel Line Crossover Method?

captmako · Post by **captmako** » Wed Oct 23, 2013 6:24 pm

I'd like to run tees off my petcocks to have mutual fuel lines to both carbs. I have seen tees and lines run behind the airbox; over the top of starter cover; through starter cover......

Is there a preferred method for running crossovers?

chasbmw · Post by **chasbmw** » Wed Oct 23, 2013 6:26 pm

Why not use the BMW method?

Jeff in W.C. · Post by **Jeff in W.C.** » Wed Oct 23, 2013 6:32 pm

chasbmw wrote:Why not use the BMW method?

And what would that be?

Not that I'm an expert, but almost every bike I've seen (airhead that is) has it running behind the airbox.

SteveD · Post by **SteveD** » Wed Oct 23, 2013 6:35 pm

The usual BMW way is to run the crossover fuel line between the lower front of the airbox and the gearbox.
http://www.advrider.com/forums/showthread.php?t=703807

vanzen · Post by **vanzen** » Wed Oct 23, 2013 7:01 pm

I've always preferred the "X" fittings
as used by Moto Guzzi
but BMW's (as stock) "H" routing
is well suited to the powerplant's geography.

Airbear · Post by **Airbear** » Wed Oct 23, 2013 9:06 pm

I run mine around the back of the clamshell airbox. It's just easier.

Duane Ausherman · Post by **Duane Ausherman** » Thu Oct 24, 2013 2:57 am

BMW made holes in the airbox just for the fuel lines. By far the most important aspect is to make sure that one has enough fool flow to insure that a low point in the line isn't clogged up.

ME 109 · Post by **ME 109** » Thu Oct 24, 2013 3:04 am

Duane Ausherman wrote: By far the most important aspect is to make sure that one has enough fool flow

I got that in spades.

Zombie Master · Post by **Zombie Master** » Thu Oct 24, 2013 5:09 am

ME 109 wrote:
Duane Ausherman wrote: By far the most important aspect is to make sure that one has enough fool flow
I got that in spades.

Rather.

jagarra · Post by **jagarra** » Thu Oct 24, 2013 9:27 am

MY crossover line looks to be made of different material, has no cloth covering. What is used as a replacement?

Boxerworks.com

What's the Preferred Fuel Line Crossover Method?

What's the Preferred Fuel Line Crossover Method?

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Re: What's the Preferred Fuel Line Crossover Method?

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Re: What's the Preferred Fuel Line Crossover Method?

Re: What's the Preferred Fuel Line Crossover Method?