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The long sad story of my 1985 K100RT

 
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Christopher P.
Mad Brick Rider


Joined: 11 Feb 2010
Posts: 107
Location: 22310

PostPosted: Sun Aug 05, 2012 1:04 pm    Post subject: The long sad story of my 1985 K100RT Reply with quote

I have a quesiton, but first, some background.

I picked up this K100 with 30k miles on it in Feb 2010. Steering bearings were toast, as were the front brakes, and a month in Shog's Shop fixed that issue. Rode around fine that summer, then the oil/water pump started leaking, so I rebuilt that.

Fast forward to the next summer, when the clutch goes out. Back to Shog's Shop, we tear out the whole ass end, replace clutch, ride home. Then something happened, where the transmission went wierd, felt like the clutch couldn't be engaged. Back on the block, I dug in, and found that the adjustment screw on the rear of the tranny had mis-seated, simple fix after tearing the whole trans out and putting it all back.

It's sat for far too many months, and needed a new battery by this point. I finally picked one up yesterday, put it in today, and now the fuel pump isn't pumping. I get great crank, but no gas, and no gas smell out the pipe, either. I can't find any blown fuses or pinched wires, but neither have I hit it with a meter yet, either.


So now I'm looking for suggestions to get the fuel pump spinning so I can finally call this a "running bike".
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SugarHillCTD
Site Admin


Joined: 10 Oct 2007
Posts: 4238
Location: Now in Eastern Pennsylvania

PostPosted: Sun Aug 05, 2012 3:27 pm    Post subject: Reply with quote

For a simple to do, low cost fuel pump rehab (after you have verified that it is getting power), I might leave it submerged in Seafoam.

"De-gunkify" it.

Just my own suggestion.

Good luck.

John
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John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.
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Tim (Midland Section)
Flying Brick Rider


Joined: 08 Apr 2005
Posts: 960
Location: Pinxton, Nottingham, England.

PostPosted: Sun Aug 05, 2012 8:07 pm    Post subject: Reply with quote

Check the integrity of the 4 pin tank connector for corrosion.
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Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
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RJTrucker
Flying Brick Rider


Joined: 31 Mar 2008
Posts: 234
Location: Central NJ

PostPosted: Thu Aug 09, 2012 11:36 am    Post subject: Reply with quote

I just had to replace my fuel tank float assembly cause it had too much resistance and was melting the ground wire in the plug. Got a new float plate for about $145 and it is fine now.
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Ron
1993 K11LT
1985 K100RS with over 100K on it
1985 K100RS Luftmiester Turbo Work in progress (any help is appreciated)
1974 R90/6
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Scott_Anderson
Site Admin


Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA

PostPosted: Fri Aug 10, 2012 10:19 am    Post subject: Reply with quote

RJTrucker wrote:
I just had to replace my fuel tank float assembly......


skdonlan had the same issue with his RS last year, fuel pump was cutting out and not running.
Problem was a broken conductor in the float assy where the electrical passed thru from the outside to the inside.
Replaced the assy and all was well.
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1995 K1100LT 0302044
2017 FLHTK Ultra Limited
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"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)
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