shifter wont tighten.

  • mpatrick19
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22 Jan 2008 17:23 #190522 by mpatrick19
shifter wont tighten. was created by mpatrick19
yall got any tricks?
1982 kz750 spectre

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22 Jan 2008 17:47 #190528 by OKC_Kent
Replied by OKC_Kent on topic shifter wont tighten.
Are you saying you can't tighten the bolt, or that the shifter moves around no matter how tight the bolt is?

Post edited by: OKC_Kent, at: 2008/01/22 20:49
Oklahoma City, OK
78 KZ650 B2 82,000+ miles

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22 Jan 2008 19:08 #190545 by Bluemeanie
Replied by Bluemeanie on topic shifter wont tighten.
Funny you should mention that. Cycle World had a tech tip about just that! I can't find that mag now but they say to file off the first spline on each side of the gap on the inside of the shifter. They say instead of tightening, the first splines actually bind against the splines on the shifter shaft preventing compression. Removing the couple splines allows it to compress more.;)

Post edited by: Bluemeanie, at: 2008/01/22 22:08
1980 KZ650F1, Bought new out the door for $2,162.98!

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  • mpatrick19
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22 Jan 2008 19:52 #190564 by mpatrick19
Replied by mpatrick19 on topic shifter wont tighten.
it just spins no matter how tight i get it. i was thinking of filing down the flat spots where it comes together to get to more compression out of it. Also it i cant get this to work how hard is it to change the shifter shaft. the bike is an 82 kz750 n1, shaft drive if that makes a difference.

thanks, mike
1982 kz750 spectre

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22 Jan 2008 20:28 #190580 by Bluemeanie
Replied by Bluemeanie on topic shifter wont tighten.
Are the splines worn off the shifter shaft or the foot shifter? (please, please let it be the foot shifter!)
1980 KZ650F1, Bought new out the door for $2,162.98!

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23 Jan 2008 05:52 #190621 by mpatrick19
Replied by mpatrick19 on topic shifter wont tighten.
its the splines on the shaft.
1982 kz750 spectre

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23 Jan 2008 06:06 #190624 by Bluemeanie
Replied by Bluemeanie on topic shifter wont tighten.
It should be changed but I know guys that have installed shifter, tightened down and then have someone mig weld on exposed end. Works great until you have to remove side cover! I guess that would be the time to fix it. I've never changed a shift shaft, someone else will have to chime in on that one. Sorry dude.:(
1980 KZ650F1, Bought new out the door for $2,162.98!

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23 Jan 2008 06:24 #190627 by BSKZ650
Replied by BSKZ650 on topic shifter wont tighten.
I saw this years ago, and it worked on a drag bike.
locate the position you want the shifter to be in, scribe a line on the shaft and shifter, use a die grinder to make a slot for a key in the shaft and on the shifter, you can get key stock at any hardware store, I am guessing a 1/8 key would work, install the key and shifter and lock into place.
77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob

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23 Jan 2008 06:32 #190630 by RonKZ650
Replied by RonKZ650 on topic shifter wont tighten.
Also kind of a similar idea is to drill through the lever, then partially through the shaft itself, then tap for a small bolt. Doesn't take much to hold it. I did this once on an old dirt bike and it did the trick just fine. Otherwise the shift shaft is used on many models and should be still available and not all that hard to replace.
321,000 miles on KZ's that I can remember. Not going to see any more.

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23 Jan 2008 06:35 #190632 by kzwolfsr
Replied by kzwolfsr on topic shifter wont tighten.
Very good idea BSKZ, but I was thinking Ron's idea before he posted. O well!
1979 KZ SR650, stock candy persimmon red and crossover pipes
1981 KZ 1000LTD with non stock and more comfortable handle bars and 4 into one V&H
Original man of the Caribbean

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23 Jan 2008 07:09 #190640 by BSKZ650
Replied by BSKZ650 on topic shifter wont tighten.
Rons idea sounds like a lot less work, should hold it quite well
77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob

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23 Jan 2008 07:13 #190641 by The Milkman
Replied by The Milkman on topic shifter wont tighten.
It won't work if either the shaft or lever are worn smooth but if they aren't some thin brass shim stock to fill the gap would work just fine and you will have no problem removing the lever when you have to in the future. ;) ;)

And it doesn't have to be brass, a strip cut out of a beer can would work just as well. And it's a good reason to have that beer:laugh: :laugh:

Post edited by: The Milkman, at: 2008/01/23 10:19
78 650-C2, Stock engine, Jardine 4-2 Exh., 17-38 sprockets, dyna ignition and coils, coil wiring mod, carb mod.
The following user(s) said Thank You: GPz550D1

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