My bike is terminal (too expensive to repair)

[stinkwheel]

Maybe time to get good at spannering?

If you reckon the bike is scrap. Doesn't cost anything to take the engine out and split it. You can decide at that point if you feel capable to put it back together again.

If you do, worst case, you've wasted a load of time, a new/second hand output shaft, an oil seal and a squirt of gasket sealant.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Alexio]

I can't believe I'm reading a thread on BCF of people requesting pictures of shafts

Maybe I'm being clueless or skipped a lot of posts.... but if that shaft is on a table... is your engine already apart, and if it is, why aren't you simply going to be replacing it?
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will never give up his CG. I look at my fuel gauge more as a progress bar than a fuel gauge.
G: With my GSXR I do often effectively use it as a scooter with a clutch in town.
ms51ves3: why does it need 500 miles? Are you teaching it how to be a piston?

[Paddy Blake]

[MaybeGuy]

am i missing somethinhg here?
It doesnt look bad at all. I was expecting a wiped shaft (lol? Pathetic...)
reuse it and tell your mechanic hes trying to take you for a ride. If you sudddenly lose all power with the engine still going, then it has become a problem. Until then, leave it.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Asharin]

[Grendel]

We are talking about my shaft not Paddy Blake's one that he has out on the table (can this thead get anymore pervers )

Friend just got back to me he has Mig welder not Arc. What do i need to take off besides the cover to put spot welds onto the socket/shaft?
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Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[MaybeGuy]

mig would probably work better.
A small slug across each spline will get enough meat to be filed down. Let it cool for a while after a few. Saves the seal then

Use a good welder and someone good with it. Ie: qualified. Not just your mate whos had a few goes blasting holes in some steel plate.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[b-f-c]

How about a large woodruff key or two in addition to the existing splines?
Might be easier to cut a slot or two in the shaft / sprocket and pop the key in.

[Alexio]

[temeluchus]

Depending on how bad it is you may be able to braze it on. At least then you can get it off again without a saw.

But If the threads are well and truly fooked, it probably wouldnt be strong enough.
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Some shite cruiser. Now with guns and FREEDOM!

[Pete.]

Brazing would put a lot more heat into the shaft, and wreck the seal.

Welding may or may not work. The best way to fix it would be to buy Paddy Blake's shaft, give it a good polish and fit that
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Grendel]

Well decided to have a look and took pictures. It appears the front sprocket retainer thing has been put on wrong by last owner last so rather than lining it up properly with the sprocket holes they must of forced it on over the splines then bolted it down resulting in wearing the splines out. The Sprocket itself fits nicely if pushed back but since the retainer is loose due to no splines the sprocket soon moves out and wobbles around by 2-4mm. So could I take the retainer off put a weld around it then bolt it back over or can you get some sort of sprocket washers?

https://i12.photobucket.com/albums/a226/ispivey/2010_03100012.jpg
https://i12.photobucket.com/albums/a226/ispivey/2010_03100013.jpg
https://i12.photobucket.com/albums/a226/ispivey/2010_03100014.jpg
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Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[Paddy Blake]

There isn't much wrong with that.Maybe try putting an extra retainer on.
New retainers as they wear out easy enough.

The retainer is not ment to line up and part of the shaft should have no splines.

[Pete.]

Nothing wrong with that shaft, unless it's a different story under the sprocket. Pull the sprocket and take another photo.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Paddy Blake]

Pic of the retainer too.I would say that is well worn.

[Grendel]

The retainer is fairly toothless so will try buying 2x new when Wemoto get some back in stock and see if they will fit on tighter.
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Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[Pete.]

The retainer doesn't fit tight in the slot, it's not supposed to. It has the same spline pattern as the sprocket, but when you slide it on the teeth fall into the groove and you rotate it so that the teeth on the retainer line up with the teeth on the shaft, preventing the sprocket from sliding off the end. The sprocket will still have some movement in it but it can't fall off.

From the pictures there is no reason why you should not just fit a new retainer (or pair of them since the slot is worn) and keep on riding.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Grendel]

Just ordered 2 sprocket retainers from David Silvers so will try that first. May take the sprocket off and give the shaft a clean with brake cleaner to see what damage is under the sprocket if any as well.
____________________
Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[Robby]

If the shaft under the sprocket is damaged enough to be a problem then you won't need brake cleaner to see it. As long as the sprocket has enough spline to stop it spinning on the shaft it's fine.

Pete and Paddy are right, you may need a pair of retainers now but there's no real drama. The sprocket doesn't need to be pressed hard up against the crankcase, a small amount of movement on the shaft is ok, so don't go panicking again there. More than 99% of the force pulling the sprocket towards the back wheel, only a tiny amount is trying to make the sprocket slide on its shaft. This is why retainers are always quite flimsy little affairs.

Do take the sprocket off and take some more pics to satisfy the BCF curiosity, but when you put it back together smear some grease on the shaft. As said, a small amount of axial play is expected, Normally the whole area is covered in oily greasy crap from chain lube building up such, so the sprocket is always lubed on the shaft. If it's all been cleaned up then you have dryness.


Something else that I've though of, that's redundant now this is more or less sorted. We were talking about building up the shaft with weld, which carries the inherent danger of damaging the shaft or the seal behind it. It would be far more sensible to build up the sprocket splines with weld or braze, seeing as you can get it as hot as you like.

[Pete.]

Make sure you grease the splines when you fit the sprocket retainers. Heavy wear isn't caused by movement, it's caused by the grinding action of particles between the shaft and the sprocket. Greasing the shaft will reduce friction and the production of those metal particles.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Grendel]

Well heres the picture of my shaft

https://i12.photobucket.com/albums/a226/ispivey/2010_03130001.jpg
https://i12.photobucket.com/albums/a226/ispivey/2010_03130002.jpg
https://i12.photobucket.com/albums/a226/ispivey/2010_03130006.jpg

And the bodge i've done to fix the problem now there is no wobbly sprocket
https://i12.photobucket.com/albums/a226/ispivey/2010_03130007.jpg
https://i12.photobucket.com/albums/a226/ispivey/2010_03130008.jpg
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Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[The Artist]

There was nowt wrong with those splines.

Only problem was the retainer gap which you have sorted. Sounds like the garage was trying to extract money from you.

[Pete.]

Splines look ok, bit worn that's all.

Loctite those bolts or they will fall out. Either that or put some flat washers under the lugs of the retainer they pass through. I take it the reason you are not lining both retainers up is because the groove is too thin for both?

You DID grease the shaft, right?
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Grendel]

Well just took the sprocket bolts out since forgot to put thread lock on them yesterday but did use copper slip on the shaft since dont have any axel grease then put it all back together then took it for an 8 mile test ride.

All I can say is BLIMY it must have been like that for a while! There’s no more crunchy gear changes no more jerky acceleration through the gears. It was almost like a new bike.
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Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079