K75 shift lever 1st gear engagement position

[kevinu]

I have a 94 K75 with ~110,000 miles.  I have had it for 30K of those miles.  My problem is that the position at which the shift lever engages into 1st gear after having been in neutral has rotated downward (counter clockwise if viewing it from the left).  The 2nd gear engagement position appears to have not changed.  I sometimes scrape my boot on the ground when putting it under the lever in order to shift it up to the 2nd gear position.  I don't think the lever has rotated on the shaft.  I did adjust this to raise the 1st gear position but this results in me having to exaggerated the foot lift to shift to 2nd and on up through the other gears.  Any input will be appreciated.

[natalena]

Is the shifting "feel" firm and without wobbly play, as you go through the gears? With a "loose" and hesitant shifts, it may be the grub screw needs to be tightened. With only a First gear issue, I'd suspect the fork is worn out of spec. Either way, it's a good chance to dig in and lube everything related while taken apart. Just my two pennies, Cheers

[Laitch]

Is the shifting "feel" firm and without wobbly play, as you go through the gears? With a "loose" and hesitant shifts, it may be the grub screw needs to be tightened.

Here is a video about adjustment of the grub screw. Using the the forum's search function in the category of Motobrick Workshop with the term grub screw will yield many posts describing members' approaches to adjustment. Here is a video of the process. It would have been helpful for the creator to use a pointer showing the location but just review it and compare what you're seeing with what you've been reading or with diagrams from parts fiches like this one at Max BMW. Look in the Transmission section.



 

[kevinu]

Thanks.  It looks like this will require getting into the transmission for evaluation and repair.  I have a 500 mile ride before I get back to my garage shop.  I guess I will take my chances and hope it doesn't fail along the way.

[Duckbubbles]

While in there also check for shift fork/drum wear.

Frank

[sooprvylyn]

Might also consider refreshing your seals while you have it off the bike.

[kevinu]

I am starting this project.  Regarding the "refreshing seals" suggestion, does this refer to the rear engine seal?

[The Mighty Gryphon]

I'm not sure what was mentioned in the video as far as Loctite, but USE THE BLUE not the red.  You never know when you might need to take that screw out again.