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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: NewBrick on March 27, 2015, 11:27:34 PM

Title: New K Bike Owner K100 RS
Post by: NewBrick on March 27, 2015, 11:27:34 PM

Hello fellow Brickers,

I recently picked up a 89 K100 RS and have been having a blast on it.  About a week ago I hesitated on a downshift from 2nd to 1st (GRIND!) and every since then it seems that my up shifts into second seem a little notchy and or clunky but not all the time.   

While this is not my first K ( I had a 87 K100 LT that I could not stand ) so I have had a few issue with grinding between 1st and 2nd (BMWs seems very particular on the transition between 1-2 and 2-1) but this is the first time the shifting seem different after a grind.

I was hoping that with the collective wisdom on this board some one could let me know what the score is (like did I really screw something up or its no big deal)

Thanks for looking!

Title: Re: New K Bike Owner K100 RS
Post by: TimTyler on March 28, 2015, 12:01:22 AM

Greeting, fellow South Sounder.

My up-shifts from 1 to 2 have always required extra effort and, most times, two foot actions instead of one. Been that way since I got the K75 50k miles ago. "Ka-clunk" instead of just "clunk" like the rest of the gears.

Title: Re: New K Bike Owner K100 RS
Post by: johnny on March 28, 2015, 12:12:57 AM

greetings newbrick...

welcome to motobrick.com...

what timtyler said... also you can drain your gearbox and fill it with mobil 1 75w-140 synthetic gear oil (http://www.amazon.com/Mobil-102490-75W-140-Synthetic-Gear/dp/B009IF3KFK/ref=sr_1_1?ie=UTF8&qid=1427515910&sr=8-1&keywords=mobil+1+75w-140) with guard dog gd-421 moly treatment for synthetic gear oils (http://guarddogmoly.com/product/gd-421-moly-treatment-for-synthetic-gear-oils/)...

j o

   

Title: Re: New K Bike Owner K100 RS
Post by: The Mighty Gryphon on March 28, 2015, 12:19:26 AM

Doing the splines on the transmission input shaft helps a lot as well.

Title: Re: New K Bike Owner K100 RS
Post by: Elipten on March 28, 2015, 02:38:24 AM

Preload the shift lever with some pressure before the shift.  Airhead riders doing that since the dawn of time.  Was taught that by my neighbor back in the 1970's

Title: Re: New K Bike Owner K100 RS
Post by: F14CRAZY on March 28, 2015, 07:49:53 AM

Yup, I always give 1st-2nd a little more effort than the rest

Title: Re: New K Bike Owner K100 RS
Post by: NewBrick on April 07, 2015, 11:21:23 PM

Sorry for the delay but I wanted to say thanks for the welcome and the advice!