K11 Owners Group

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Greetings,

I'm a newbie and first and foremost, many thanks to Flying Duck for his over the phone help and introduction to this forum. I'm in Tucson, Arizona.

I have a 1994 K1100 LT which up until recently has run flawlessly. I got busy with projects last year and the bike sat for about 5 months on the sidestand.

I have been trying to get it started recently and have performed the following:

Replaced the fuel line and filter
Replaced the spark plugs
Have kept the battery charged up
Disconnected, lubricated and re-seated the motronix unit
Check all electrical connections that I can find to make sure they are snugly connected
Checked fuses and replaced fuse #4 which was burned
Did not seem to be getting any gas to the plugs (tried to start it before replacing them) - they were not damp or smelling of gas
After trying to start the bike, I do not get a gas smell out of the exhaust
When I turn the power on, I get a pulse from the fuel pump.

I try to start the bike up on the center stand in neutral. I get plenty of power and I tested a spark plug while replacing them and I am getting a spark. Previously, the bike started almost immediately. The kill switch is in the middle position.

I'm given to thinking I have one of two problems:

Not getting any gas delivered. Any ideas on moving forward on this issue??

Second option might be a faulty kill switch. Since I don't seem to be getting any gas, this seems doubtful to me.

Any and all suggestions will be most welcome.

Regards,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

Flying Duck · Posted: Tue Jan 12, 2010 1:26 pm Post subject:

Did we talk about the side stand switch and how to bypass it?

Your fuel pump is making noise when it pre-pressurizes the tank so I don't think it's the fuel pump. Since the spark plugs aren't getting wet it sounds like the injectors aren't working for some reason.

I'd get a 12V LED and see if the Motornic is putting out error codes.

http://www.k11og.org/forum/viewtopic.php?t=2110

(You put R1100 LT in your signature.)
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Scott_Anderson · Posted: Tue Jan 12, 2010 2:09 pm Post subject:

If I remember correctly if the side stand switch is bad you won't have any fuel pump, guages, or idiot lights.
So if you have fuel pump running then the side stand switch shouldn't be part of the problem.

Like Duck suggests, check the injector circuit.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Phil Marvin · Posted: Tue Jan 12, 2010 2:16 pm Post subject:

Hi, Micko,
Drake has you on the right path. You said there is a "pulse" from the feul pump. Does it run for a couple of seconds, enough to pressurize the system? Is your fuel filter clogged? Remove it and try to blow through it. If you can, reinstall it; if not, replace it. If the pump runs and the filter is clear, there are fuel lines, pressure regulator and injectors left. My guess would be clogged injectors.
_________________
Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP

Flying Duck · Posted: Tue Jan 12, 2010 2:36 pm Post subject:

Phil: New FF installed and FP is pre-pressurizing as it should.

Micko: Did we discuss swapping relays to see if it might be the Motronic relay?

Swap the Motronic relay with one of the other black relays. The little black ones are all the same. (The blue one is for ABS.)

That might not be it since the fuel pump is working but it can't hurt to try.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Thanks to whoever sent the schematic.....I went to the blue connector on the left side above the battery - found it but it's not connected to anything!

I can't even find a 3 pin connector that might connect to it.....any chance that the connecting line might fall off? I would assume that it's supposed to go to the fuel injectors.....

Any ideas where to go to trace this down?

Regards,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

Flying Duck · Posted: Tue Jan 12, 2010 6:51 pm Post subject:

That's the diagnostic plug for hooking it up to a computer. It's not supposed to be hooked up to anything. The blue part is a cap for the connector. It comes off and then you can use an LED to read ABS and Mortonic fault codes.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Thanks. That's the next thing I'll try.....

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Hi,

In the html that was linked, it said that for K bikes, an LED is not required and that the codes display on the temperature meter on the dashboard.

If so, would I just connect a length of wire from the positive cable directly to the pin outlet I wanted to test?

Also, my ABS lights blink constantly when I turn the bike on. They used to go off if I pressed the brake pedal but that is no longer true....maybe because it's not running???

When I turn the bike on, the fuel pump performs a single pump, lasting about a second. Should it run longer?

Last, is there more than one fuel injector and is it difficult to remove if I wanted to check it for a clog?

Thanks,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

Flying Duck · Posted: Thu Jan 14, 2010 2:19 pm Post subject:

Scott_Anderson · Posted: Thu Jan 14, 2010 2:23 pm Post subject: Re: Questions about Motronix

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

I haven't tried disconnecting the kickstand shutoff.....don't really know how. When I drop the kick stand down, I can't even get the dash lights to come on so it seems to be working. However, I'd be willing to try and short it out if not too difficult.

Also haven't tried switching the relays....I guess I just raise the gas tank to get access? Is this worth following up on before I LED test the Motronic? I'm going to head off to Radio Shack and get an LED tester.....

Thx,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

Flying Duck · Posted: Thu Jan 14, 2010 2:38 pm Post subject:

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Hello,

Tried the LED and got nothing but a solid light. Tried it a few times with the positive to the battery and the negative to the line 1 opening.....

Thoughts???
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

bmwmick · Posted: Thu Jan 14, 2010 6:43 pm Post subject:

I sent you a PM.

Mick

Take that 12V LED you got and put it across one of the injectors. All 4 injectors see the same pulse (it's a ground pulse from the Motronic) so any one will do.
You will probably have to remove the left side lower to gain good access. Stripping the left side would be a good idea anyway. They you can get at the fuel rail AND the injectors. I suspect you have a blockage.
_________________
Mick McKinnon
KOG#175
'93 K1100LT, '96 R1100RT, '84 R100RS, 2010 Kawasaki C-14
Tucson, AZ

Saltcreek · Posted: Thu Jan 14, 2010 6:51 pm Post subject:

Two members in Tucson. I lived in Tucson briefly in the early 70's. That's when I owned my first motorcycle. I don't even remember what it was. I loved it there and thinking of the roads outside of the city, in the desert and the mountains, I wish I could ride there again. Maybe this will be the summer I put together a trip out west.
_________________
Jim

1994 K1100LT Mystic Red, bfd, 37000 miles, sold Sad

2009 Wilderness Systems Zephyr 155 ST
2002 Litespeed titanium

Flying Duck · Posted: Thu Jan 14, 2010 7:40 pm Post subject:

micko:

Here's a link to a write-up I did on removing a K75RT fairing. It's pretty similar to a K1100LT and should help you get the radio out and the left side panel off:
http://www.ibmwr.org/ktech/rt-fairing/k75rt_fairing.shtml

The leads on the injectors are held on by a little square wire clip. You need to remove that before you can get the fuel injector connector off.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Thanks...

Most likely since when I removed the fuel line, there were parts in the gas tank and the line was cracked and dry when removed. Twill be my next project. Maybe start tomorrow. Thanks for the info.

Regards,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

Tomorrow I will remove the fairing and test the fuel injector (time permitting) with the LED.

Regards,

Mick
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara

micko · Joined: 11 Jan 2010 Posts: 17 Location: Tucson Arizona

I tested the fuel injector with the LED and got no light. I tried testing it all by itself with the power on as well as with the positive hooked to the battery. Still no light.

I'm in the process of removing the fairing but the BMW radio is proving to be quite troublesome to remove. I've popped the lower clip but can find an upper one and while I jiggle the radio around, it's still firmly attached to something underneath.

Any suggestions?
_________________
1994 BMW K1100 LT
67,000 Miles
Michael OHara