Author Topic: Tight valves question, need answer fast!  (Read 3659 times)

Offline Octarine

  • Motobrick Curious
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Tight valves question, need answer fast!
« on: April 06, 2013, 10:42:25 PM »
Ok, 85 K100 with 31k showing but most likely more.

Went to Motoworks this morning to pick up maintenance supplies. Whenever I buy a new bike I assume nothing has been done and the molasses in lieu of brake fluid is proving me right.

Checked valves and found intakes are at (1-4 left to right)
1).203mm  2) .127!! 3) .178 4) .178 but prob a hair tighter

Exhausts:
1) .203  2) .203  3) .229  4) .229

Those are mm.

So obviously I got some shimming to do in my future!

I am ordering the tool from Ken, he is close to me unless someone in Chicago can lend me one.

Here's the $64,000 question: can I ride her with those clearances?  I work retail and after tomorrow im basically working two weeks straight with no chance to get to Motoworks:(.

I was planning on heading to the Full Moon in the morning after I flush the brakes.

Thanks!
I used to think the brain was the most important part of the body. Then I realized who was telling me that.

Offline Chaos

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Re: Tight valves question, need answer fast!
« Reply #1 on: April 06, 2013, 11:13:32 PM »
I don't think you're going to hurt anything riding it for a couple weeks like that.  I've seen tighter exhaust valves that once reshimmed held their clearance for another 40,000 miles.
  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline Octarine

  • Motobrick Curious
  • Posts: 38
Re: Tight valves question, need answer fast!
« Reply #2 on: April 06, 2013, 11:41:12 PM »
Cool. My experience with air cooled bikes makes me cautious.  I gather the water cooled K has more stable operating temperatures than the old GS1100!
I used to think the brain was the most important part of the body. Then I realized who was telling me that.

Offline johnny

  • TrailBrakingThrottleWhacker
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Re: Tight valves question, need answer fast!
« Reply #3 on: April 07, 2013, 12:01:47 AM »
you snow belt motobrickers are so predictable... always tinkering with your motobricks... if it were me i would ride it till it wont move...

j o
  • :johnny i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin  :johnny

Offline Octarine

  • Motobrick Curious
  • Posts: 38
Re: Tight valves question, need answer fast!
« Reply #4 on: April 07, 2013, 09:39:55 AM »
Good to know. In my non bmw experience, driving it till it wont move ends up with me parting out a bike on craigslist. Not my idea of a good time!

I used to think the brain was the most important part of the body. Then I realized who was telling me that.

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