BMW K bikes (Bricks)

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1Back to top Go down   stuck fuel injectors Empty stuck fuel injectors on Tue Sep 01, 2015 10:45 am

chuck659

chuck659
New member
New member
Working on bike for a friend.  His father gave him the bike 10 years ago, wasn't running at the time - dead fuel pump.  At least it was in a garage all those years!

Replaced fuel pump & battery.  Going to clean the injectors, can't get them out!  They wiggle, even put WD-40 & let soak for an hour.  We were pulling so hard on the fuel rail that I got scared we'd bend it.

Any suggestions?  Thanks,
Chuck in Dallas

    

2Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Tue Sep 01, 2015 8:49 pm

RicK G

RicK G
VIP
VIP
Make sure you clean around the injectors very well before they come out or the grit goes down the port.
Try some acrilic thiners the O-rings often dont like it and it will penetrate much better than WD40. Also try to remove the fuel rail then one injector at a time as you can get more room to twist and turn them to break the seal.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


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

3Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Tue Sep 01, 2015 9:03 pm

rawdonball

rawdonball
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When all else fails - try brake fluid...


__________________________________________________
'88 K100RT, '86 K75C, '05 Yamaha TTR250
    

4Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Wed Sep 02, 2015 4:16 am

charlie99

charlie99
VIP
VIP
yep undo the clips to the fuel rail that hold the injectors in place first

then you might be fighting just one at a time from the head instead of the collective fusion of them all


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ostuck fuel injectors Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

5Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Wed Sep 02, 2015 4:29 am

Holister

Holister
Life time member
Life time member
I used 6mm plastic tubing, duct-taped into a vacuum cleaner nozzle to suck out any remaining debris.
And then a small hammer handle to gently pry the rear end of the fuel rail out a little then work towards the front. Worked for me.


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  stuck fuel injectors Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

6Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Thu Sep 03, 2015 6:51 am

TacKler

TacKler
Life time member
Life time member
As per Nigel's (KH) suggestion I ripped the guts out of an old biro and taped that to the end of the vacuum cleaner.  After I loosened the debris around the injectors with a dental pick (or a bit of lockwire). 

Then with a long set of 90 degree offset pliers I levered them loose.  You will need the fuel rail removed for access to do this.  You can wrap tape around the plier jaws if you are worried about damaging the injector. 

I then cleaned the injector holes with a dental pick whilst at the same time using the above vacuum nozzle extension to suck up the debris.  (This is where you need a third hand to hold the torch)

Hopefully I will put them in for a service tomorrow. 

Cheers, TacKler.


__________________________________________________
Red 1991 K75S
    

7Back to top Go down   stuck fuel injectors Empty Thanks ya'll on Thu Sep 03, 2015 11:17 am

chuck659

chuck659
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New member
Will be this weekend before I can get back on it.  Will use many of the suggestions.  Thanks & will let you know what happens.
Chuck in Dallas

    

8Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Thu Sep 03, 2015 10:23 pm

blaKey

avatar
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Life time member
"(This is where you need a third hand to hold the torch)"

Use a head torch. Both hands are now free.

My 2 cents worth.


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

9Back to top Go down   stuck fuel injectors Empty Re: stuck fuel injectors on Thu Sep 03, 2015 10:31 pm

Stan

Stan
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Life time member
If you come from Tasmania you would not need that head torch.


__________________________________________________
1983 K100 basic vin 0003960 colour red  GONE
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
F800R black
    

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