1994 K75 valve adjust needed?

[wjg4oh]

Just ordered a MotionPro. Thanks for the link, 98lee.

It looks like I have a vacuum leak at the throttle bodies. I'm going to do more diagnosis, but it appears to be those $50 intake manifolds between the TBs and the engine. Ouch!

[98lee]

Make sure it's not the o-ring on the brass adjustment screws or the vacuum port caps (easier and cheaper) first.

[Zagando]

Didn't know about those O-rings so I guess when I do the TB sync it'd be wise to replace them as well before adjusting the screws---this will probably be the first time that's been done since new...

So if I understand things correctly I would
1) remove the TB screws
2) install new O-rings
3) put the screws back in all the way, then back them out a nominal amount, say 1.5 turns
4) hook up the Motion Pro and set about adjusting them for most even level thereafter until done

? Let me know if I missed anything; I'm going to order one of those MPs as soon as I can round up a few extra "hobby bucks."

[wjg4oh]

Make sure it's not the o-ring on the brass adjustment screws or the vacuum port caps (easier and cheaper) first.

Lee, I've already replaced the o-rings, and the caps fit tightly.

When the manifolds go is it the rubber boot or the hard part that bolts to the head (warped). Any possibility they can be repaired/reconditioned to save the $150?

I want to try the carb cleaner again and try to be very focused with it to see if I can isolate the problem.

[detbmw]

I would like to check/adjust the valves and sync the throttle bodies on my '88 K75S in the next month. I bought a manometer, but I lack the two tools required for the valve adjustment. I have a couple of good friends who are R-bike experts, but I have the only K-bike in the area, so there are no tools that I can borrow.

Anybody have an idea where I can purchase, beg, borrow, or steal, well, I guess not steal, the tools?

[timtyler]

Copied from Motobrick.com:

In order to adjust the valves (by installing different thickness shims) on a K75 or 2V K100, you need a couple of special tools: one to compress the valve spring and another to hold it down while you swap the shims. The Clymer manual lists these as part numbers 111720 and 111722 respectively. You can by them from BMW for $100 (see attached drawing below)

Or you can purchase some homemade ones:
(text from a post by Chaos)

Yes, "Valve Adjusting Tools" and ÔÇ£Clutch PilotsÔÇØ are available for the BMW 2 valve "K" engine.
ÔÇ£Valve Adjusting ToolsÔÇØ (both K75 & K100) are 2 pieces made from 3/16ÔÇØ Laser cut steel. Working contours are identical to factory tools. "Valve Adjusting Tools" are new, from steel, w/ instructions.

"Valve Adjusting Tools" for BMW 2 valve "K" engines are $28 S/H included.
Clutch pilots for BMW K's (both K75 & K100) are available also. New, from steel.
Clutch Pilots for BMW K's , are $18.50 S/H included.

Cashiers Check, Money Order or Personal Check are welcome.
ÔÇ£Pay PalÔÇØ accepted also. Please apply ÔÇ£Pay PalÔÇØ to:
polepenhollow@yahoo.com

I bought and used these tools. They worked fine and are made to last. They ship from WA state.

[98lee]

Rich,

Just talked to him this morning. He's back in Illinois again.
I've updated the prices in this old email. They are current as of today:


From: Kenneth Lively
Date: April 7, 2008 3:16:01 PM PDT
To: judy fulton
Subject: Re: K-bike valve tools

Hi Lee
Yes, I have BMW "K" engine Valve Adj tools available for the 2 valve "K" engine.

The 2 Pieces are made from 3/16” Laser cut steel. Working contours are identical to factory tools. Tools are new. Tools come w/ instruction sheet.
$28 S/H included.

Clutch pilots for K's are available also. New, from steel
$18.50 S/H included.

“Pay Pal” to Polepenhollow, Cashiers Checks, Money Orders and Personal Checks accepted.
I ship as soon as Pay Pal is posted or the check arrives.

Thanks, Good Luck and Good Riding.
Kenneth Lively
318 S Hart St
Palatine Il 60067

polepenhollow@yahoo.com
847-561-8555




Kenneth is a good guy that is doing our community a great service! I've used my set on over 30 valve adjustments (mostly other peoples) and they work great!!

[PGlaves]

Rich,

Just talked to him this morning. He's back in Illinois again.
I've updated the prices in this old email. They are current as of today:


From: Kenneth Lively
Date: April 7, 2008 3:16:01 PM PDT
To: judy fulton
Subject: Re: K-bike valve tools

Hi Lee
Yes, I have BMW "K" engine Valve Adj tools available for the 2 valve "K" engine.

The 2 Pieces are made from 3/16ÔÇØ Laser cut steel. Working contours are identical to factory tools. Tools are new. Tools come w/ instruction sheet.
$28 S/H included.

Clutch pilots for K's are available also. New, from steel
$18.50 S/H included.

ÔÇ£Pay PalÔÇØ to Polepenhollow, Cashiers Checks, Money Orders and Personal Checks accepted.
I ship as soon as Pay Pal is posted or the check arrives.

Thanks, Good Luck and Good Riding.
Kenneth Lively
318 S Hart St
Palatine Il 60067

polepenhollow@yahoo.com
847-561-8555




Kenneth is a good guy that is doing our community a great service! I've used my set on over 30 valve adjustments (mostly other peoples) and they work great!!

I agree completely. I happen to have a factory set and one of Ken's sets - one in Kansas, the other in Texas. The use of one set or the other is totally interchangeable. He makes a quality tool that will last several lifetimes.

[detbmw]

Thanks for the information! I will be ordering a set.