501FE (-96) shift drum question!

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Joined
Feb 14, 2010
Messages
3
Location
Öland, Sweden
Hi all!,

I'm a bit confused about the shift drum in a 501FE 1996 engine, it's a 6 speed gearbox, but if I'm not wrong (which I probably am! :D ) I can only find 4 unique positions on the shift drum + neutral. (The bike was unable to start after a "repair" and sold)

After the 4th gear in the shift drum there's a hole for a locking pin, but then the grooves are straight cut for the 5th & 6th gear which equals neutral?, I belive that the middle groove should go from side to side for the last two gears, I've searched for images of the shiftdrum but everyone I've found looks like that! Are there two kinds of shift drums or what am I missing? :oops:

In this image, from the middle of the drum and up, there's the 1st gear, neutral and 2nd gear visible right?
[attachment=1:23dm5csu]drum1.jpg[/attachment:23dm5csu]

In this image, from the top of the drum and down, there's the 4th gear and there should be the 5th and 6th gear, but this configuration equals two neutrals?
[attachment=0:23dm5csu]drum2.jpg[/attachment:23dm5csu]
 

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No one knows if there might be two different shift drums for this bike :?:
 
To clarify my stupidity and maybe help someone else with this issue;

There is only one type of shift drum from -89 to -99 (#240028-01). It has two holes for locking pins which enables the shift drum to be used in both 4-, 5- and 6-speed gearboxes depending on where the locking pin is.

I went to my garage today and assembled the gearbox, everything became crystal clear! My mistake was that I belived that all three shift forks sat in line, don't know why.. never seen that in a bike! For the 5th and 6th gear the two outer grooves should be in "neutral" position and the middle groove should go from side to side just as I figured from looking at the input- and output shafts with gears. And so it does!, it's just that the middle shift fork is located aproximately half a turn before the outer shift forks! (the 5th gear position for the middle shift fork can be seen on top of the drum in the first picture!)

:oops: :oops: :oops: :oops:
 

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