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12-17-2015, 09:18 PM,
#16
RE: Drive shaft
i would'nt over do it but its light and would just hold it.
2007 1100 custom,cobra longs and pods,doubled clutch spring.
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12-17-2015, 10:06 PM,
#17
RE: Drive shaft
I don't even need to drill a hole. The shaft cover is open on both ends.
A great man once said you can never learn if you don't ask.
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12-17-2015, 10:31 PM,
#18
RE: Drive shaft
i think if that cover is missing there would be nothing to stop trash from getting inside the gearbox.
2007 1100 custom,cobra longs and pods,doubled clutch spring.
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12-17-2015, 11:15 PM,
#19
RE: Drive shaft
The jury's still out. No one seems to know how this all comes together. It may just have to wait until I pull the rear tire. It works right now so, ride it till it breaks I guess.
A great man once said you can never learn if you don't ask.
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12-18-2015, 03:24 AM, (This post was last modified: 12-18-2015, 03:24 AM by jmck.)
#20
RE: Drive shaft
here my vid. the final drive is sealed by the rubber seal, in the vid mine is worn but has been replaced
[video=youtube][/video]

https://youtu.be/D2pbw9YQsuk
Jmck
Two wheels moves me body and soul Cool
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12-18-2015, 11:14 AM,
#21
RE: Drive shaft
The only thing that moves on this one is just the cover. There are no other loose parts. The cover will slide forward or back. No seals broken, nothing. It may take me some time before I do it. But I will definitely find the answer!
A great man once said you can never learn if you don't ask.
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12-18-2015, 08:34 PM,
#22
RE: Drive shaft
I think I got it! @jmck

Under typical conditions, that collar covers the shaft. When the shaft turns, the collar turns with it. When you have the problem we have, it's because that collar has actually been cut. The part that remains is a short section of the collar still attached to the shaft. If you look at your rubber seal at the tip of the final drive, where you can see the shaft, you should see the short section of the collar. It has been perfectly sliced either by bearing failure or seal failure. Leaving the long end of the collar to slide forward and back.

Just like a pipe cutter cuts a piece of copper! Round and round until separation.

Drawing this conclusion I will wait to pull the tire. When I do, I will definitely update this post to confirm my hypothesis.
A great man once said you can never learn if you don't ask.
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12-18-2015, 10:20 PM,
#23
RE: Drive shaft
i'd like to know what you find. my seal is cracked and i'm sure water gets in. and that can't be good.
2007 1100 custom,cobra longs and pods,doubled clutch spring.
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12-20-2015, 05:37 AM,
#24
RE: Drive shaft
@hydroturf i had noticed the shaft sort of turned in the way copper pipe is when cut with a pipe cutter. but i never saw a second piece. the seal and the rear seal are exactly the same size, it is like they butt join and just sit there, except it doesn't work.
Jmck
Two wheels moves me body and soul Cool
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12-20-2015, 11:25 AM,
#25
RE: Drive shaft
the seal that is in nose cone is not an oil seal, it just a dust seal, so if you see oil on it then the inner seal ( oil seal ) is leaking. the coupler that connects the shaft to the pinion gear rides on that inner seal. look at part 13 and 14 in the link. oil should not get past that seal http://www.yamahapartshouse.com/oemparts...rive-shaft the seal can leak if the pinion shaft bearing gets loose or go's bad
Lightbulb dumb bikers don't get to be old bikers
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12-20-2015, 12:17 PM,
#26
RE: Drive shaft
what is the cover no. 30 on there for? decoration, why could'nt the dust seal be fitted to the shaft?
2007 1100 custom,cobra longs and pods,doubled clutch spring.
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12-20-2015, 08:04 PM,
#27
RE: Drive shaft
(12-20-2015, 12:17 PM)nick59 Wrote: what is the cover no. 30 on there for? decoration, why could'nt the dust seal be fitted to the shaft?
I think it is just decorative and to provide some protection to the spinning shaft.
A great man once said you can never learn if you don't ask.
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12-20-2015, 08:33 PM,
#28
RE: Drive shaft
(12-20-2015, 08:04 PM)hydroturf Wrote:
(12-20-2015, 12:17 PM)nick59 Wrote: what is the cover no. 30 on there for? decoration, why could'nt the dust seal be fitted to the shaft?
I think it is just decorative and to provide some protection to the spinning shaft.
what's strange to me the 650 doesn't use a shaft cover at all, so on the 650 the actual shaft rides on the dust seal. i can see no real purpose for the shaft cover, unless it's for making a tighter fit at the dust seal. if the dust seal fit's tight to the actual shaft then the shaft cover could just be eliminated. because it is serving no purpose at all, except to make the shaft look bigger.
Lightbulb dumb bikers don't get to be old bikers
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12-20-2015, 09:08 PM,
#29
RE: Drive shaft
make the skinny shaft look beefier
2007 1100 custom,cobra longs and pods,doubled clutch spring.
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