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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: billday on July 08, 2014, 08:05:12 AM

Title: Popped out of 2nd gear
Post by: billday on July 08, 2014, 08:05:12 AM

So, last winter I got inside my transmission to tighten up the grub screw. (I didn't have the classic floppy shifter, but there was a wee bit of play in the shifter and occasional balky upshifts.)

I found the job pretty stressful, but in the end I got everything back together. Life interfered with riding, and I only got the big bike on the road last week. Everything feels normal. Still have occasional balky upshifts. Then, yesterday afternoon, the bike popped out of second gear as I motored up a steep driveway at low speed.

Never did that before! What do people think? Is this a sign of troubles to come?

Thanks, Bill

Title: Re: Popped out of 2nd gear
Post by: Bokobob on July 08, 2014, 09:07:01 AM

Now and again my bike pops out of gear and usually it is when I have not shifted with "authority".....my drive is steep too and have gone up in 2nd gear if I am already rolling but if I stop at the bottom as usual (hump at curb) I always go in first gear..

I know that is no definite help, but just sharing what I have done and noticed.

Title: Re: Popped out of 2nd gear
Post by: Motorhobo on July 08, 2014, 09:24:40 AM

It has happened to me but as a one-off, not a pattern, possibly due to wimpy shift action. Not pleasant when rolling up throttle in a turn.

Title: Re: Popped out of 2nd gear
Post by: TimTyler on July 08, 2014, 11:50:14 AM

Shifting up into 2nd gear for me has always required a little extra left-foot action and effort. It's almost two foot movements; two clicks before the gears are meshed and locked properly.

Title: Re: Popped out of 2nd gear
Post by: Scott_ on July 08, 2014, 06:47:23 PM

Another +1 for needing to shift with authority.... I've had both of mine drop out of gear if I get forgetful and lazy with the up-shift.

Title: Re: Popped out of 2nd gear
Post by: Chaos on July 08, 2014, 08:12:54 PM

It could be a sign of a bent shift fork, especially if it starts happening more often under acceleration. Very early K75's (1986-87) had a shift drum made out of a softer metal which could cause this.  Don't ask how i know. 

Title: Re: Popped out of 2nd gear
Post by: billday on July 08, 2014, 11:52:40 PM

Thanks guys. Maybe I should just not overthink it.

Title: Re: Popped out of 2nd gear
Post by: johnny on July 09, 2014, 08:59:11 AM

if my heap aints popping outta gear then i aints riding it hard enough...

j o

Title: Re: Popped out of 2nd gear
Post by: racinrich on July 13, 2014, 08:32:40 PM

yah when I shift like a squid all sorts of bad s  t happens .shift it like you mean it !!!!

Title: Re: Popped out of 2nd gear
Post by: 1991K100RS on July 14, 2014, 02:12:12 PM

Quote from: TimTyler on July 08, 2014, 11:50:14 AM

Shifting up into 2nd gear for me has always required a little extra left-foot action and effort. It's almost two foot movements; two clicks before the gears are meshed and locked properly.

This is my experience when shifting from 1st into 2nd. Usually requires quite a bit of authority, otherwise it's two clicks  :riding:

Cheers