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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: 6.5 on January 24, 2013, 10:31:25 PM

Title: fuel line
Post by: 6.5 on January 24, 2013, 10:31:25 PM

How much fuel line do I need to buy for my K75RT, going to change fuel filter and line in tank. :mbird

Title: Re: fuel line
Post by: mjydrafter on January 25, 2013, 01:54:02 PM

I had a heck of a time locating anything other than 1' lengths of the submersible line you will need for the tank and be prepared for some sticker shock, IIRC it was close to $30...  The stuff outside the tank just needs to be injection rated hose and I'm thinking that 4' left me with some extra.

Title: Re: fuel line
Post by: wmax351 on January 25, 2013, 02:35:29 PM

The internal tank stuff can be generic too. Just needs to be submersion rated.

http://www.gates.com/brochure.cfm?brochure=5091&location_id=541 (http://www.gates.com/brochure.cfm?brochure=5091&location_id=541)

http://www.euromotoelectrics.com/BMW-Hose-for-In-Tank-Submersion-16-13-1-455-350-p/fp-hosekit.htm (http://www.euromotoelectrics.com/BMW-Hose-for-In-Tank-Submersion-16-13-1-455-350-p/fp-hosekit.htm)

Title: Re: fuel line
Post by: frankenduck on January 25, 2013, 02:36:34 PM

Approximate lengths for a K75:

Fuel Rail to Tank - 10 7/8"
Fuel Fail to FPR - 9"
FPR to Tank - 19 1/2"

About 40" total, might need an inch or two more on the fuel rail to tank line for a 2V K100

Title: Re: fuel line
Post by: frankenduck on January 25, 2013, 09:39:01 PM

The BMW submersible fuel line is cheaper than aftermarket.  Part 16121180040 is about $25 for a meter of it. That should be enough to do two tanks.

Title: Re: fuel line
Post by: 6.5 on January 28, 2013, 05:40:17 PM

Hey frankenduck did you mean 9" for inside the tank? I bought 12" is this enough for inside tank on K75?

Title: Re: fuel line
Post by: 6.5 on January 29, 2013, 04:23:51 PM

I bought 12" for inside the tank, is this enough hose?

Title: Re: fuel line
Post by: 6.5 on January 29, 2013, 10:55:51 PM

I took the 12" piece I bought, cut off a 2 inch section for the small hose. It will work but it is a sharp bend in the hose (not a kink). What is needed is about 16" total for the fuel filter hose replacement inside the tank.

Title: Re: fuel line
Post by: frankenduck on January 30, 2013, 04:16:23 AM

The factory line from the fuel filter to the pump is about 13ish+ inches plus a few more inches for the other one.  I agree that the ideal total length for both is in the 16" neighborhood.