K11 Owners Group

Stoked Steve · Posted: Sat Apr 17, 2010 7:40 pm Post subject:

Thanks Scott, that's where I was heading, I just wanted confirmation of my thought process.

Next step, new connectors. I wonder if 4 wire trailer plugs would suffice????

(edit) This is wierd, I have about 10 or so postings lately that show up as the "top" of a new page. This is freaking me out.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Scott_Anderson · Posted: Sat Apr 17, 2010 7:41 pm Post subject:

Steve, here's a pic of what I was talking about when I mentioned a generic 4pin weather proof connector.

It's even got the same 4 color wires. Laughing

Very easily picked up at your local parts store. Obviously don't use those blue tapping connectors, unless you want more problems. Rolling Eyes

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Ride safe.

1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
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"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)

Stoked Steve · Posted: Sat Apr 17, 2010 7:50 pm Post subject:

That looks just like a trailer wire connector ( I should know as I've hooked up quite a few trailers lately!), I'm on it!
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

garynali · Posted: Sat Apr 17, 2010 11:09 pm Post subject:

Gday Steve
This my first post but have been looking at the site for a few years.I have a 93 model RS that had your problem. The intermittent fuel pump can be hard to troubleshoot. As you say your pump can't be faulted when powered up so likely not that. More likely the fuel pump relay ( can be taken out and bench tested) or the connection on the motoronic computer. From memory the computer gives both power and earth to the fuel pump relay when the ignition is turned on. I ended up cleaning and coating all the connections in the system with dielectric grease. This fixed it. If not the pump is a bosch commonly used in fords ( EA FALCON Australian ford ) and the computer is very expensive genuine only.
Good luck
Gary Chadwick , Hervey Bay, Australia

Stoked Steve · Posted: Sun Apr 18, 2010 8:40 am Post subject:

Thanks for the suggestions. I've replaced the relay and tried a new pump (the ford substitute). I think I've got it down to a wire from the connecotr to the fuel sending unit. I'll be replacing the connector today and see if that's it.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Stoked Steve · Posted: Sun Apr 18, 2010 9:15 am Post subject:

I'm losing my mind,

I went to double check everything again this morning before I started cutting things and it all is working correctly! I'm getting a 0 ohm reading from the green pin in the connector to the sender unit solder and to the end of the wire where it would attach to the fuel pump.

I connected the leads to the fuel pump and plugged the connector in and the pump fires right up when I tun the key. I'm right back where I started from without knowing for sure what the issue is!

I could have sworn I was not getting any reading when testing the green pin to the yellow power wire at the pump, but I was testing so many different things and just learning how to do it that I wasn't sure, which is why I was double checking things this morning.

I guess I'll still replace the connectors anyway since I'm pretty sure I was not getting a connection there yesterday.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Stoked Steve · Posted: Sun Apr 18, 2010 11:36 am Post subject:

Since the power was back, I thought I'd hook everything back up and start the bike up and see what happens.

I'm getting the whirr at the pump, but it sounds a bit strained, and the bike won't start. I pulled the pump out of it's bracket in the tank and pulled the hose off. When I turn the key on, it whirrs but no fuel is coming out. If I hit the starter, still no fuel comes out. So maybe it is the pump after all??

I did power up the pump a few times when it was out of the tank (2X), that wouldn't mess it up, would it?
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Jim · Posted: Sun Apr 18, 2010 11:37 am Post subject:

Steve - I don't think it would hurt the pump to run it for a few seconds.
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Jim
1997 K1100LTSE 94,000 - has gremlins!
1995 R100RT Classic 16,650 crashed - repairing
1992 K75RTP 46,000
1992 R100R 24,000 - FOR SALE

"We shall not all die, but we shall all be changed."

Stoked Steve · Posted: Sun Apr 18, 2010 11:54 am Post subject:

I think I might have the wires reversed, hang on...
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Flying Duck · Posted: Sun Apr 18, 2010 12:07 pm Post subject:

Running it out of the tank for short periods won't hurt it. What so you think happens when you run out of gas?
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93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
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Stoked Steve · Posted: Sun Apr 18, 2010 5:01 pm Post subject:

OK, had the wires reversed, so it was sucking instead of pumping, d'oh!

But, good news, got the pump wired correctly and it was running and the bike started right up, ran for a few minutes and then the pump cut off again, the bike died. I quickly pulled the pump out and tested the wires, no continuity between the green pin and the yellow power lead to the pump, just like yesterday.

I am getting the 12v at the connector (motronic side) between the green wire and the brown wire for a few seconds telling me that the motronic is sending the signal correctly, it's just not making it to the pump.

So, I finally feel pretty confident it's an issue in the tank side connector. I'm going to go ahead and order one from EB and wait for it.

Thanks again for everyone's help.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

SugarHillCTD · Posted: Sun Apr 18, 2010 5:18 pm Post subject:

Saltcreek · Posted: Mon Apr 19, 2010 7:35 am Post subject:

robleyd · Posted: Mon Apr 19, 2010 7:53 am Post subject:

drikko · Posted: Mon Apr 19, 2010 9:23 am Post subject:

WTF!!
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DISCLAIMER:- Anything I say may have been when I was drunk so please don't take it personally.

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Stoked Steve · Posted: Wed Apr 21, 2010 9:57 am Post subject:

Well, it's not the plug in connector. While I'm waiting for the a new connector from EB, I decided to just cut the old one off and direct connect the wires, it didn't work, still getting no conectivity between the green wire and the solder joint where it becomes the yellow wire (to the fuel pump).

So, the issue must be in the wire or more likely in this connector,

But I don't see where this can come off, it's seems pretty permanent.

Can I get a new wire with this connector, or do I have to get a whole new sending unit and replace the whole thing?

It appears to be a whole unit for $104.00 from Max. No. 10 in this diagram.

_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

joeangi · Posted: Wed Apr 21, 2010 10:31 am Post subject:

Replace the sending unit....I'm still thinking motronic plug, but then again I have not been riding enough to see if mine is really fixed. Drake should have a replacement. Does anyone have a sender out, that they can check the wires before replacement?

Joe
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1994 K1100RS
1986 K100RS

Stoked Steve · Posted: Wed Apr 21, 2010 5:32 pm Post subject:

Well, I think the motronic is fine because I always get the 12v signal for 3-4 seconds beween the green wire and the brown coming from the motoronic when I turn on the key. But the continuity bewteen the green wire and the sender unit has been in and out, corresponding with the pump not firing up.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Stoked Steve · Posted: Wed Apr 21, 2010 7:08 pm Post subject:

Found a used unit for $45 on Ebay and he also had a clutch cable which I've been meaning to get as a spare. So I bought them both.

Hopefully this will cure my bikes issues.

I'd like to ride to HM without constantly worrying about when it's going to die next.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

SugarHillCTD · Posted: Wed Apr 21, 2010 7:18 pm Post subject: