Just bought 3 more for all the XS650's.
THANK YOU Greg !!!!
THANK YOU Greg !!!!
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Shift shaft chain guard
- Thread starter GLJ
- Start date
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- Tags
- chain guard shift shaft
Xschopt
XS650 New Member
Yes I have some.
I'll send you a PM later today.
Maybe ship a bunch to the UK? Just floating the idea, see if there's solid interest?
I have quite a few left. I'll send you a pm.
If anyone else is interested in a shift shaft chain guard I have several extras ready to go.
Also I have some one piece aluminum clutch pushrods ready to go.
You can read about the pushrods here. Starts at post #8
https://www.xs650.com/threads/magura-clutch-lever-and-aluminum-pushrod.56574/
Also I have some one piece aluminum clutch pushrods ready to go.
You can read about the pushrods here. Starts at post #8
https://www.xs650.com/threads/magura-clutch-lever-and-aluminum-pushrod.56574/
Interesting solution to the chain guard/loom issue. I think I shall make one up on the lathe. Question though: Is the purpose of the thick end of the largest piece simply to reduce machining? I'm gathering it serves no function in itself.
My thinking is it serves a purpose. The space between thick end and the other end acts as a guide along with protecting the shift shaft.
Sorry, I meant the approx 1" long thick end, not the waisted section. I think its just left thick to probs save machining away. No worries, will make it as shown. Good idea.
Just finished the whole thread, I'll order 3 if you have them. I always thought that running the wires so close to the chain was a bad design and even tried to runi it under the motor when I was building my chopper but that didn't work (I'm no master builder) I have had 4 xs650s and 3 have had the wiring harness chewed up by the chain. The first repair of a dead motorcycle I successfully sussed out and fixed was the yellow wire from the harness
I was pretty proud of my self. On my latest acquirement I noticed that the PO didn't have the chain guide in place and the harness had no damage at all 
![IMG_3509[1].JPG](https://www.xs650.com/data/attachments/361/361259-bbdf6cc1a4c9885455c3f909030a090a.jpg "IMG_3509[1].JPG")
it has low miles so maybe it was just a matter of time and not have the chain adjusted before the harness would have had the same fate as the others but I was going to leave it off and see how it fares. This is a better idea and I'm glad somebody figured it out.
I was pretty proud of my self. On my latest acquirement I noticed that the PO didn't have the chain guide in place and the harness had no damage at all it has low miles so maybe it was just a matter of time and not have the chain adjusted before the harness would have had the same fate as the others but I was going to leave it off and see how it fares. This is a better idea and I'm glad somebody figured it out.
Just thinking out loud here... what if one were to just put needle roller bearings on the shift shaft? Any theories? Usually the outer race is heat treated, so might that damage the chain? 
How are you making these out of delrin? Are you turning them up on the lathe. I'm actually wondering if 3D printing in ABS might be a good solution; quick, dirt cheap to make and therefore very expendable. And I mean printed in the solid for all of it, except the fat end section which is just a spacer, effectively, with no loadings. You could get a whole load printed out on one bed pretty cheap, so swap them out regularly.
What's the OD of these? Making drawings and solid models for everyone... I saw in a previous post you're using 1"; are you turning that down to something less? Reason I'm asking is my geometry doesn't jive on the thin shoulder on the large piece unless I make it ⅞", or I tell it that at 1" OD the shoulder angles are 60 degrees not 45.
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I just converted all the dimensions to milimetres and those thin shoulders are very thin indeed at only 1.27mm!! They'd almost be a little floppy at that I would think. I'm going to get some 3D printed in ABS to see how they turn out.
I'll send you a PM later today.
Ok, just been checking page 1 pics again and it appears the 50 thou only applies to the shoulder on the small 'tophat' piece, correct? And the stepdowns on the larger piece are tapered, about 60°, correct? Any chance of a PM'd sketch, to be sure before making, as I only have enough Delein to get it right first time. Cheers for any help and for sharing your idea.
See post #11
From the pics in post #11 I've quickly drawn up this sketch. I've converted into metric too and approximated the metric dims to nearest 0.1mm (4 thou) which is going to be close enough. If I've misread the dims let me know and I will amend the sketch.
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