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The Motobrick Workshop / Re: Spark Plug Leads DIY
« Last post by Laitch on Today at 07:16:40 PM »
BMW doesn't offer them separately in the parts fiches I use. You'd be able to get a suitable one at an auto parts retailer maybe. Suitable ones seem available from many online vendors in the States.
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The Motobrick Workshop / Re: BMW K75 Standard - No Spark on All 3 Cylinders
« Last post by stokester on Today at 03:45:44 PM »
When is the last time you changed your fuel filter?
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The Motobrick Workshop / Spark Plug Leads DIY
« Last post by Jayjay on Today at 03:23:14 AM »
Hello,

Hopefully someone here can point me in the direction of where to get a small part.. Im working on repositioning the coils so I want to make longer spark plug leads.

I bought a set of spark plug cables NGK from cafe4racer:
https://cafe4racer.eu/en/ignition-cables-bmw-k100-k75-k1-k1100/42924-ngk-spark-plug-cables-sk-for-k75-k100-k100-k1100-black.html

These include the plugs for the bougies but the plugs for the coils have to be re-used.

So Im looking to cut those, and connect them to the new (longer) spark plug cables.

In below Picture I pulled the connector from the original spark plug lead that connects to the coils apart, and it has a rubber sleeve, then the hard plastic 90 degree angled part, and then the wire with the double crimp terminal.

Does anyone know the part number of double crimp terminal as in the picture crimped on the original wire?




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The Motobrick Workshop / Re: Banging Noise at Idle
« Last post by Laitch on May 24, 2026, 11:53:59 PM »
Surprise! Surprise! That's a cake-taker. Good work, John and thanks for the update.  icon_cheers
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The Motobrick Workshop / Re: Banging Noise at Idle
« Last post by John Lang on May 24, 2026, 08:31:20 PM »
To locate the clunking noise at idle I listened to the alternator with a screwdriver stethoscope as suggested. Not the source. Then I noticed a split in the crankcase ventilation ("S") hose. Replacing it smoothed out the idle, reducing the volume of clunk to a level below the threshold of my being sufficiently concerned to bother investigating the clutch rod. All is well.
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The Motobrick Workshop / Re: BMW K75 Standard - No Spark on All 3 Cylinders
« Last post by Rokah on May 24, 2026, 04:27:51 PM »
Went to test today. Before starting I tried starting the bike. It worked right away.... :idunno:

I'll try the hair drier on the hall effect sensor to see if that makes it fail....
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The Motobrick Workshop / Re: The Dreaded Under-The-Tank 4 Pin Connector (85 K100rs)
« Last post by Edward on May 24, 2026, 03:16:41 PM »
Word, great news.

—Just dropped 3 on a water/oil pump rebuild. The gear shaft was worn with age. I have Conti Road Attack 3. As you know, I'm heading up your way soon to the Rally. Hopefully the k75s is road worthy by then. Doing my best. Rain down here as well, every freaking day and night.



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The Motobrick Workshop / Re: What Did You Did To Your Motobrick Today ?
« Last post by Edward on May 24, 2026, 03:08:08 PM »
In the middle of replacing water and oil pump seals (kit from Euro Moto) and the drive gear (pitted shaft). Clockwork so far. Yes, the weep hole was plugged with debris. I repainted the cover with black appliance enamel, which tends to hold up well over time. I'll use trusty Hylomar M to seal it up.
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The Motobrick Workshop / Re: 1999 K1100LT O2 sensor?
« Last post by Kevin1100 on May 23, 2026, 09:14:50 AM »
Hey Scott, thanks for the reply! That makes sense. Another thing learned today!
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The Motobrick Workshop / Re: 1999 K1100LT O2 sensor?
« Last post by Scott_ on May 23, 2026, 09:02:17 AM »
To the best of my knowledge, the O'2 sensor is only found on the US market bikes. I believe that the EU version allows for a manual O'2 trim adjustment if required/needed.
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