Author Topic: What Did You Did To Your Motobrick Today ? (Read 1909344 times)

Martin · « **Reply #2300 on:** August 21, 2016, 08:58:07 PM »

Bizz not sure if all of the following applies to a K1100 but might want to check the fuel regulator pressure if out can cause rich running. also might want to check the mixture if you don't have access to an exhaust gas analyzer you can use the posted lean drop method. A quick check on the mixture can be done by pressing the starter button with the engine going and idling at 1000 Rpm. The revs should increase slightly about 50 Rpm if it is right. If it increases dramatically or dies, it is out and will need to be done. May also want to synchronize the air bypass screws which will require a 3 vacuum gauge setup. There are post on how to make one using tubing and ATM fluid. Somebody will know whether any of this applies.
Good luck regards Martin.

bizzaro · « **Reply #2301 on:** August 21, 2016, 10:00:13 PM »

Yea...16 valve k with a catalytic converter nullifies most of that, but thanks. Searching the net now for info. Done the throttle body sync several times. I will study up on how to test the fuel regulator. When I had the fuel line off, it was a steady stream, not a lot of force. I'll keep plug n away. I want it right.

I tried out a K1100RS the other day and man.........................freaken sweet!!! The motor was smooth as butter. I mean unbelievable smooth, powerful, and even. Not the slightest stutter or hesitation. Just smooth power! WOW! !Drive train perfect. Hardly any slack at all. Shifted like magic. OMG! I would have bought it cept I can't sit in that position for long. My wrists hurt before I left the driveway! But my god what a tight machine that was.

Martin · « **Reply #2302 on:** August 21, 2016, 11:01:25 PM »

Biz you can always change the angle of the bars. When I got my k75S 19 years ago on tight turns you trapped your thumbs against the tank. Over the years the bars have been progressively moved up and back as I've aged. They are probably close to LT level now. Next stage will be Harley pull back bars. Trying to work out how to fit a recliner chair when I hopefully hit 100. :hehehe
Regards Martin.

bizzaro · « **Reply #2303 on:** August 21, 2016, 11:08:03 PM »

Yea, I was wondering if the bars would switch out. I am so glad I drove this bike. Now I know what the standard is. But I don't have the $! I drove all over Maine looking at K's this Saturday. If I had not driven that bike, I may have mistakenly made a purchase!

But really I just want the motor and drive train. The guy is not driving it.. I can just sneak over there some night and trade um out with mine! He will never know! :clap: :hehehe

Martin · « **Reply #2304 on:** August 21, 2016, 11:23:30 PM »

If it's not the same colour you may have to paint it to get away with the swap. Should be OK unless his Guide dog smells a rat. :hehehe
Regards Martin.

BlitzenGruv · « **Reply #2305 on:** August 22, 2016, 04:39:06 AM »

Quote from: Laitch on August 21, 2016, 08:34:41 PM

Both sides' signals or just one side's signal?

Both sides.
Signals flash at the normal rate, but only as long as the button is held down.

herseyb · « **Reply #2306 on:** August 22, 2016, 12:13:40 PM »

popped the transmission, drive shaft and final drive off and lubed all my splines this weekend. I had some great pictures till my phone died this morning. :'( Now I don't even know my girlfriends phone number anymore.

only sign of wear was on my final drive, where it looked a little more worn than when I did final drive only lube last year.
1 or 2 mm more, maybe up to half a cm of wear deep.

Went with the honda lube last year, guard dog this year. Hopefully the guard dog stays in place a little better cause the honda had all slung off for the most part... I want my baby to live forever!

Wear pattern was even on all the teeth, triangular taper from the front leading edge.

First time, 4 hours off, 6 hours on, with occasional oversight from my mechanic buddy. Needed his help to get the bell housing back on - wouldn't fit for shit until we turned the crankshaft a little bit. then it slipped right on, easy peasy.

These BMWs are nice... If it ain't screwing together with your fingers, something isn't right.

The Dude · « **Reply #2307 on:** August 22, 2016, 02:35:28 PM »

BlitzenGruv,
It could be a "latching"relay not latching any more.The cancelling switch would open circuit the relay closing coil to release the contacts...in my simple world.
Still,they're now idiot proof.

BlitzenGruv · « **Reply #2308 on:** August 23, 2016, 04:17:55 AM »

Thanks Dude.
I suppose the "latching relay" is a part of the flasher unit. Looking at the wiring diagram, it's not your generic 3-terminal flasher unit.
Could also be water in the RH switch causing the cancel button to short or stick. The bike got rained on shortly before my last ride.

The Dude · « **Reply #2309 on:** August 23, 2016, 02:36:09 PM »

Yeah,we can"assume" these mysteries are way more complicated.Most of my Gremlins self sort but I do give them time to do that.

BlitzenGruv · « **Reply #2310 on:** August 23, 2016, 03:39:11 PM »

My suspicions were correct. The cancel button sticks a bit.
Shoot a little WD in there and all will be well.

Nine80seven · « **Reply #2311 on:** August 25, 2016, 03:39:45 PM »

Final report on knock, knick, tick tock glitch felt through the bars etc. after warm up, '85 KRS, early. As mentioned before been working through the systems, all cleaned up, love the bike, ergo good. The one thing I never did was get a decent set TB balancers.

Previous dealer service records were very strange with wacky comp. numbers, wackier valve adj., loose wires and such. Front brakes soaked in fork oil, rear MC leaking, all around ridiculous. And that's when I figured the TB balance was prolly wacko. And it was.

Balanced them last evening, went for a spin this morgan and the knock knick is gone. There is still a small miss when hot and sitting after ride, and I throttle through full RPM range. As if maybe I got a tiny leak either intake plenum to exhaust manifold. Almost imperceptible.

So with this brick the TBs were way out of sync and now it's running 98 percent better. Tickled blue here. Now gotta change out rear shocks on my other brick, the old red Volvo.

This is the coolest damn rig I think I ever had. A scoot with aplomb, grace and torque.

motorheadsdiygarage · « **Reply #2312 on:** August 26, 2016, 10:23:35 AM »

1. Replaced the clutch cable (outer casing cracked).
2. Replaced the cracked vent line from the crankcase to the Air Box.

Laitch · « **Reply #2313 on:** August 26, 2016, 10:40:27 AM »

Quote from: motorheadsdiygarage on August 26, 2016, 10:23:35 AM

1. Replaced the clutch cable (outer casing cracked).
2. Replaced the cracked vent line from the crankcase to the Air Box.

Good photos!

K1300S · « **Reply #2314 on:** August 26, 2016, 11:48:51 AM »

Quote from: Nine80seven on August 25, 2016, 03:39:45 PM

Final report on knock, knick, tick tock glitch felt through the bars etc. after warm up, '85 KRS, early. As mentioned before been working through the systems, all cleaned up, love the bike, ergo good. The one thing I never did was get a decent set TB balancers.

Previous dealer service records were very strange with wacky comp. numbers, wackier valve adj., loose wires and such. Front brakes soaked in fork oil, rear MC leaking, all around ridiculous. And that's when I figured the TB balance was prolly wacko. And it was.

Balanced them last evening, went for a spin this morgan and the knock knick is gone. There is still a small miss when hot and sitting after ride, and I throttle through full RPM range. As if maybe I got a tiny leak either intake plenum to exhaust manifold. Almost imperceptible.

So with this brick the TBs were way out of sync and now it's running 98 percent better. Tickled blue here. Now gotta change out rear shocks on my other brick, the old red Volvo.

This is the coolest damn rig I think I ever had. A scoot with aplomb, grace and torque.

and hence when anyone says the brick isn't running right for any reason, the first thing to do is go step by step through the balance and tune process.

RobP · « **Reply #2315 on:** August 29, 2016, 08:13:32 PM »

Quote

Going for an '89 cylinder head transplant

Nine80:

Is the '89 a 16V head? Can you put that on a '85 8V block?

What type of exhaust are you running on your K100RS? I need to find a replacement for my stock exhaust - it must have a broken internal baffle and it has a very annoying, high pitched vibration at certain RPMs.

Beautiful bike, BTW.

Nine80seven · « **Reply #2316 on:** August 29, 2016, 08:35:46 PM »

My '89 LT head is a two valve. Exhaust is standard pipes into a Staintune muffler, NLA. '89 head is on the spare parts shelf for now as the bike is running good.

jaxon · « **Reply #2317 on:** August 30, 2016, 11:14:34 PM »

I found my K75S was running rather weird. Felt like a slight surging (unsteady RPM) at speed and occasional pops on decel. I pulled the plugs and found autolites in the bike, replaced it with the NKG ones. The autolites were kinda grubby. Still felt weird and unresponsive. Looked at the Crankcase Breather and noticed a fine crack halfway through it. I had anticipated rubber bits and ordered one and swapped it out. That crack certainly wasn't clearly evident on first viewing.

Made a first attempt to sync the throttle body. Seem pretty even to me.

More to do's on the way.

BlitzenGruv · « **Reply #2318 on:** August 31, 2016, 06:06:43 AM »

I added a camera.

No way to use the handlebar mount which came with the camera, so I had to improvise. Parts cost about $8.

TrueAce · « **Reply #2319 on:** August 31, 2016, 10:14:35 PM »

Now that is sure nuff red neck engineering! Very clever! :clap:

White Dog · « **Reply #2320 on:** September 01, 2016, 09:06:02 PM »

Recently installed an Emgo trunk and new rear disc brake pads.

K1300S · « **Reply #2321 on:** September 01, 2016, 09:16:46 PM »

Quote from: BlitzenGruv on August 31, 2016, 06:06:43 AM

I added a bath towel rack
Parts cost about $8.

fixed that for ya! :-)

Bill · « **Reply #2322 on:** September 01, 2016, 09:22:20 PM »

Fitted a new Metzler Lasertec front to my '88. Came with one 5k km ago not new so I'm not sure what the total life was.... New one feels great ! and I'm no longer checking the rain forecast. :riding:

Chaos · « **Reply #2323 on:** September 02, 2016, 04:41:08 PM »

Replaced bad valve stem. Ahhh, my mechanical and carpentry talents combine to make a PITA job a 2 beer minor chore

Martin · « **Reply #2324 on:** September 02, 2016, 04:52:58 PM »

:clap:Love lateral thinking.

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Author Topic: What Did You Did To Your Motobrick Today ? (Read 1909344 times)