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1Back to top Go down    Running with a bad fuel filter on Sun Dec 29, 2013 9:46 pm

ltisz

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My K100RS was running like a pig for a few weeks and it coincided exactly with the weather getting colder so I just wrote it off as just some warming up issues. A few days ago I got the bright idea to look at the fuel filter while the bike was running and it was coming apart at the seams under pressure! I was running it on a near-daily basis like this for at least a few weeks. I swapped it out for a brand new one yesterday along with a new set of sparkplugs and of course it is running like a dream now.

One question, though - I'm curious whether this could have caused any problems with anything else that I should check. Did it stress out the fuel pump? Could it have screwed up any of the injectors?


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1985 K100RS
    

2Back to top Go down    Re: Running with a bad fuel filter on Sun Dec 29, 2013 9:56 pm

RicK G

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I doubt it would have created problems for the pump or injectors but because it was split it could have been releasing all that crud it filtered out back into the tank so it may pay to keep an eye on it in the near future as it very well could clog up again.
BTW I do hope you were using the correct aluminium filter and not one of the plastic ones that will explode with the pressure.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

3Back to top Go down    Re: Running with a bad fuel filter on Sun Dec 29, 2013 10:33 pm

duck

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Sounds like you were running a fuel filter not designed for the pressure of fuel injected systems. Brand and part number? Metal or plastic?


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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
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

4Back to top Go down    Re: Running with a bad fuel filter on Sun Dec 29, 2013 10:38 pm

Inge K.

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It was i big batch of bad OEM fuel filters that did have a weak seam around
early nineties.............most of these should be out of the shelves now, but........


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

5Back to top Go down    Re: Running with a bad fuel filter on Sun Dec 29, 2013 10:39 pm

ltisz

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The fuel filter in the bike was the aluminum OEM one, but the date stamped on it was from 1995. I found a service bulletin about just this problem with pre-1997 filters -http://hrsbstaff.ednet.ns.ca/bvogel/K100/download/K100-service-bulletins-and%20special-tools/P36-97.pdf

The new filter I just put in was an OEM one manufactured a good bunch of years after 1997, so no worries there. Thanks!

edit - that was the wrong bulletin! fixed.


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1985 K100RS
    

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