clutch push lever difference

[javier302]

hey guys, I need to replace my push lever, and I ordered one online and when I opened it doesn't match mine.
the one on my bike (79xs650) has 2 holes and the one I received only one. is there a year where they changed or any kind of info that would help me get the correct one.
thanks
Javier

 

[javier302]

for reference ebay items....

271543075190 2 hole

370123560015 single hole

 

[Phail]

It doesn't make a hole lot of difference. Just use it.

 

[javier302]

the one on the bike, the 2nd hole is being used for the "bell crank system" I have for my foot clutch. I'm trying to avoid having to make new pieces to accommodate the difference in the throw/angle.

 

[nj1639]

I recently changed out the worm on my '77 to the one listed in your ebay link as the single hole type. The one that was in there also had a single hole but it was located closer to the pivot point. I road tested the one with the hole out at the end and immediately swapped it back.
The further from the pivot point the more lever needs to be used......closer to the pivot point the less lever needed. Stock hand clutch lever.
Just some info if it helps.

 

[javier302]

is there a different part number or specific year they came with the longer one ?

 

[gggGary]

The one from mikesXS is a two holer.

 

[javier302]

and its in backorder gggGary can't win

 

[5twins]

I think the 2 hole versions would be aftermarket parts. As far as I know, factory ones only came with one hole, although the location varied. The short arm was used on the early models. The first long arm came along about 1974. In about 1979, the hole was moved in closer to the center, same long arm just different hole location.

Trying to sort part numbers is difficult. The middle section seems unchanged at "16340". It appears the 3 digit prefix changed, 256 for the early short arm and IT3 for the late long arm. The mid production long arm doesn't seem to be listed although it may have had a 447 prefix.

You can drill a second hole in any long arm version if need be.

 

[javier302]

awesome info 5twins.
thank you

 

[retiredgentleman]

My original worm lever had the hole at 1 25/32" from pivot centre to hole centre. I drilled a second hole at 1 14/32". That changes the clutch plates separation from 0.079" to
0.097". That extra 0.018" makes a big difference. Much easier to select neutral.

 

[javier302]

thanks retiredgentleman

 

[javier302]

any of these came with a RH thread, instead of LH
the one I received is also opposite as my "stock" one

 

[5twins]

Are you talking the thread on the adjuster screw or the "thread" or direction of the swirl grooves? The direction of the swirl differed on some other models like the TX750 twin.

 

[javier302]

sorry, it's the direction of the swirl.
I'll see if I can find a tx750 one to see if I can get it running again

thank you again