Author Topic: Adjusting shifter linkage  (Read 2284 times)

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Offline Scott S

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Adjusting shifter linkage
« on: May 11, 2011, 04:55:04 PM »
 I'm asking this question for two reasons:

 A) I need to make an adjustment on a stock FJ600 and,

 B) I will be installing CB400F "rear sets" on my CB500 soon.

 They both have a similar linkage and I need to know how to properly adjust it.

  The FJ has some hard shifting issues and I need to adjust the clutch and the shifter. The shifter is very loose on the shaft and has some free-play before it starts moving the splined shifter on the shift rod. I'd say it has at least a 1/4 inch of movement up or down before everything is tight and the shifting action actually happens.
  I would think there should be no free play and the linkage should be direct and solid. Am I right?

 What's the proper procedure to set up a shift linkage? How much "slop", if any, should there be between the shifter and the shift arm?

 Here are some pics. The FJ is first and the CB400F pegs are next.

'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline Scott S

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Re: Adjusting shifter linkage
« Reply #1 on: May 11, 2011, 04:58:23 PM »
BTW, I know you loosen the lock nut(s) and turn the threaded rod to adjust it. I'm mostly asking about the proper slack, or lack thereof, that's supposed to be in the shifter/linkage.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline scottly

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Re: Adjusting shifter linkage
« Reply #2 on: May 11, 2011, 06:09:54 PM »
The threaded rod is the "fine" adjustment for the shift lever toe-piece position. The "coarse" adjustment is the spline on the shaft. Neither adjustment will affect the play, or slop. If the ball joints on the rod ends aren't loose, then the play is most likely from the lever pivot. Not much you can do about it.
BTW, 1/4" isn't very bad, at least compared to my ancient rear-set controls. ;) 
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Offline Steve_K

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Re: Adjusting shifter linkage
« Reply #3 on: May 12, 2011, 05:37:52 PM »
My Xix had that much play in it until I "adjusted" it.   I squeezed the aluminium or pot metal around the loose part in  a vise.  Works great after 3 yeats. Your results may vary and someone else may have another thought,  PS loctite didnot work.
Steve
Steve_K

76 CB 550, 73CB750, 86 GSX-R750, 16 Slingshot
Old rides:305 Honda, CL350, 74 CB550
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