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Author Topic: in line fuel filter  (Read 2773 times)

Offline Oconner

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in line fuel filter
« on: August 24, 2015, 05:45:03 PM »
Dumb question # 4,564,892: I want to put an inline filter on the fuel line. If I do it will not be vertical it will be horizontal. Is that OK?
'82 r65LS
'72 Honda CL 350
'13 FZ6R

Offline Bob_Roller

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Re: in line fuel filter
« Reply #1 on: August 24, 2015, 06:14:35 PM »
It'll be just fine .
The filters on my r65's are all mostly horizontal .
What kind of filter are you planning on using ???
I've been using these the last 12 years .

http://www.itw-fastex-cva.com/images/stories/data-shts/visufilter/8437-00-9909.PDF
« Last Edit: August 24, 2015, 06:17:27 PM by Bob_Roller »
'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

Offline Oconner

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Re: in line fuel filter
« Reply #2 on: August 24, 2015, 06:22:25 PM »
Thanks Bob, mine is like this. Went to an Airhead Tech day an almost everyone had one like this.

.
'82 r65LS
'72 Honda CL 350
'13 FZ6R

Offline montmil

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Re: in line fuel filter
« Reply #3 on: August 24, 2015, 07:11:23 PM »
Quote
Thanks Bob, mine is like this. Went to an Airhead Tech day an almost everyone had one like this.

I use these on all three of my Airheads. You may find that sanding down the o.d. of the barbed ends permits an easier fit to the fuel lines.
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Tony Smith

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Re: in line fuel filter
« Reply #4 on: August 25, 2015, 09:12:46 AM »
Quote
Dumb question # 4,564,892: I want to put an inline filter on the fuel line. If I do it will not be vertical it will be horizontal. Is that OK?


OK my question is why do you think you need a filter in the first place? If the mesh screen that should cover your tap inlerts is still in place then that mesh will stop dead anything capable of causing a problem. Adding an as additional filter adds nothing.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline wilcom

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Re: in line fuel filter
« Reply #5 on: August 25, 2015, 09:30:02 AM »
Quote
Adding an as additional filter adds nothing.

I get all warm and fuzzy when I can see the fuel gurgling toward my lil carbies after turning on the petcock......... :)
Joe Wilkerson
Telephone man with a splash of Data
Menifee, CA

Present:
1984 BMW R65LS "Herr Head"
past:
1982 BMW R65LS
1979 R65
1980 R65
1982 R80RT
1974 R90/6
1972 R75
1964 R50/2
19xx R27
ZX-11

Offline Barry

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Re: in line fuel filter
« Reply #6 on: August 25, 2015, 09:55:46 AM »
I've never fitted an external filter because I think they look ugly and spoil the original look of the bike. If I thought the stock filter was inadequate Id try and improve it somehow by having a filter over the straws in the tank and another one inside the fuel tap union.
Barry Cheshire, England 79 R45

Offline Bob_Roller

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Re: in line fuel filter
« Reply #7 on: August 25, 2015, 10:29:35 AM »
I added an additional filter on my '81 R65, no filter screen over the tubes in the tank .
It has the filter in the fuel tap, but I was always getting fine sediment and a few globs of water in the carb bowls when I removed them .
After adding the extra filter, no sediment or water in the carb bowls .
It also helped out on my '82 LS, I purchased fuel line at a local auto parts store, it turned out, that the ' fuel ' line was vacuum line that was mis- identified, started seeing black sediment in the filter, removed it and found it was coming apart from the inside  .
'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

Offline montmil

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Re: in line fuel filter
« Reply #8 on: August 25, 2015, 12:13:08 PM »
No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.

I can occasionally spot a speck of debris in the clear body of the filters. Remove the filter, backwash with a little fuel and refit. After years of use, the Bing 32mm float needles and bowls remain tidy.

Add your filter, Oconner.  [smiley=thumbsup.gif]
« Last Edit: August 25, 2015, 12:14:20 PM by montmil »
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Oconner

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Re: in line fuel filter
« Reply #9 on: August 25, 2015, 01:25:11 PM »
Will Do!!!
Thanks guys!
'82 r65LS
'72 Honda CL 350
'13 FZ6R

Offline Luca

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Re: in line fuel filter
« Reply #10 on: August 25, 2015, 05:57:10 PM »
Quote
It also helped out on my '82 LS, I purchased fuel line at a local auto parts store, it turned out, that the ' fuel ' line was vacuum line that was mis- identified, started seeing black sediment in the filter, removed it and found it was coming apart from the inside  .


Even with a good in tank filter, fuel hoses will still break down on the inside.  Ethanol does a number on older hoses and the cloth covered stuff BMW sells.


The absolute best setup would be to have a fuel filter just before or in each carb fuel barb, so as to catch any rubber bits that break away from the fuel hoses downstream of the tank screen.
'82 R65LS
'01 K1200RS

Offline Tony Smith

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Re: in line fuel filter
« Reply #11 on: August 25, 2015, 06:25:05 PM »
Quote
No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.


Someone stole your mesh filter Monte!

Motobins can supply you with a new one for GPB2.

Motobins Part No. 98563
BMW Part No. 16 12 1 233 368

Picture below.....


The post 85 taps (which fit perfectly) have a different design mesh sheath which is even better. Motobins were sellign the sheath type mesh seperately, but it no longer seems to be listed.


1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline montmil

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Re: in line fuel filter
« Reply #12 on: August 25, 2015, 07:23:07 PM »
Quote
Quote
No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.

Someone stole your mesh filter Monte.

Good thing I have a most excellent in-line filter. [smiley=thumbsup.gif]
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Tony Smith

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Re: in line fuel filter
« Reply #13 on: August 25, 2015, 11:14:25 PM »
Quote
Quote
Quote
No wire mesh filters over the straws of the R65-specific single petcock on either of my R65s.

Someone stole your mesh filter Monte.

Good thing I have a most excellent in-line filter. [smiley=thumbsup.gif]

Alternatively, you have an ugly addition that introduces three (3) new potential failure points:-

1/. the inlet spigot
2/. the device itself
3/ the outlet spigot.



Meanwhile, back at "Pedants-r-us". sometime next decade I must clean my fuel tank mesh filter.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline Barry

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Re: in line fuel filter
« Reply #14 on: August 26, 2015, 02:20:09 AM »




Motobins Part No. 98563
BMW Part No. 16 12 1 233 368




That's the filter I have. I tidied up the bottom end to stop it fraying by dipping it in solder.
« Last Edit: August 26, 2015, 02:22:19 AM by bhodgson »
Barry Cheshire, England 79 R45