BMW K bikes (Bricks)

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1Back to top Go down    Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 7:38 am

Tom FKR

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G'day all ye knowledgeable ones. I'm in the process of bringing back to life the "Goulburn" bike. During the process of replacing fuel lines, a more easily accessible location for the FPR would make the job so much easier. Has anyone ever relocated the FPR and if so where to. This topic has probably been covered before but I'm keen to get your response. Thanks in advance. Cheers Tom


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1993 K75 Slightly Modified
2010 BMW F650GS Twin
1992 R100R
    

2Back to top Go down    Re: Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 7:54 am

duck

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How often are you planning to replace the fuel lines?


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

3Back to top Go down    Re: Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 8:16 am

RicK G

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I would just leave well alone Tom. I know the lines are not easy to do as I have just done a set on Marg's my K75RT but for the times you even go near them finding a suitable other place, well I don't think it's worth the mucking about.
BTW do you still want the handlebar mounts. I found the set I thought I had.


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

4Back to top Go down    Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 8:21 am

Tom FKR

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Thanks for reply Rick. I will heed your advice. I'm reluctant to spend money on a new FPR.

Bugger about the bar clamps. I just needed one which is on the way from motorworks.


__________________________________________________
1993 K75 Slightly Modified
2010 BMW F650GS Twin
1992 R100R
    

5Back to top Go down    Re: Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 8:29 am

charlie99

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as you know tom there is a cutout built into the base of the airbox ,,which conveniently allows the fpr to reside just there
I have a thought that it was purposely designed to fit there ..as it would be a reasonable warm location for those folks that live in the far north , and so that icing up would not be an issue around the output of the fpr (remember as fluids and gasses expand ie : loose pressure- expand , there is a definite cooling effect that happens )

I cant see any reason that placing it almost anywhere else would be an issue out here , unless you plan on hiting the snowies etc commonly

I wouldn't suggest real close to the radiator

in a way its a pitty that there is so much stuff on that side of the engine , throttle bodies , coils, plenum etc

of corse you have to remember that its much better to keep the high pressure lines as short as possible but that doesn't seem to affect the k 1100 versions which do a reverse flow - from back to front in comparison to the 2 valve k100 models

maybe a detailed look at the k1100 layout might give some other ideas ? (sorry I haven't studied it at all ) but worth a thought

just some thoughts mate


good luck

pics when you get it sorted eh ?


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

6Back to top Go down    Re: Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 8:48 am

duck

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In case you haven't dug into it yet, here's my method for getting the air box out of the way:
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/maf/maf.htm

You really only need to get the bottom half out of the way but getting the whole air box out of the way opens things up and gives you more working room.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

7Back to top Go down    Re: Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 3:25 pm

Point-Seven-five

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It can be done.

I can recall seeing a photo someone posted a few years ago(possibly over at MotoBrick) of a FPR that was relocated to the space above the front end of the rail. The regulator was mounted to a bracket, but I can't remember how. I was impressed by the installation because I had just gone through the exercise of replacing the return lines on my K75RT.


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Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

8Back to top Go down    Fuel Pressure Regulator Relocation on Mon Apr 30, 2018 11:08 pm

Tom FKR

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Thank you all for replying. I have dug in and got to the FPR pretty much as described in Duck's link. I reckon the little bugger can stay where it is. Now to replace the fuel lines and the breather tube which had perished. Cheers Tom


__________________________________________________
1993 K75 Slightly Modified
2010 BMW F650GS Twin
1992 R100R
    

9Back to top Go down    Re: Fuel Pressure Regulator Relocation on Tue May 01, 2018 1:40 am

Crazy Frog

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Come on guys.
I used the search on the portal typing "fuel pressure regulator relocation" and found it right away.
Check this :-)


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1986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

10Back to top Go down    Fuel Pressure Regulator Relocation on Tue May 01, 2018 11:24 pm

Tom FKR

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Sorry CF, please disregard that post.


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1993 K75 Slightly Modified
2010 BMW F650GS Twin
1992 R100R
    

11Back to top Go down    Re: Fuel Pressure Regulator Relocation on Tue May 01, 2018 11:27 pm

Crazy Frog

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Not again Tom...
Disregarding Tom's post


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1986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

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