My bike is terminal (too expensive to repair)

[Grendel]

Went to get new chain and sprockets fitted today since been putting it off for months. But disaster apparently the front drive shaft is too badly worn to replace the front sprocket and needs replacing but been told it would cost more than the bikes worth to replace the front drive shaft.

Apparently the rear sprocket had also near enough undone itself due to the front sprocket jumping about on the drive shaft and that the suspension is set on the softest setting so very bouncy.

The 2 option he said I had was either keep running it until it dies since it would cost too much to repair of do a temp fix by welding a new front sprocket onto the shaft and stiffening up the Hagon rear shock

I'm completely lost at what to do?

How expensive a job is it?
Is there a cheaper option?
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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

[mad4it028]

transalp?
if so ide do it myself
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always looking to buy bikes crashed ,unfinished projects,none runners pm me
currently riding kawasaki z1000 only bike ive ever loved

[Pie-Roe]

[Kickstart]

Hi

I would be surprised if it is that worn without there being other symptoms, and I can't see the rear sprocket coming unbolted just due to the front sprocket moving (the chain will absorb the movement).

Can you take off the front sprocket cover and take a piccy?

As to the shock, how stiff that should be will depend on your weight, etc. Adjusting it should be a simple job.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Grendel]

Yep apparently the splines have got too worn down.
someone on another forum has mentioned using chemical metal?
Since i'm fairly mechanically inept.

As for the rear shock it's a fairly new Hagon mono-shock which to ajust you need to take off apparently?
____________________
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]

why cant you weld up the splines and file them down again?
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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

[Robby]

I doubt chemical metal would be up the job of building up worn splines, but with a bit of patience and a file you should be able to build them up with weld and then file it back down to the correct profile.

If you do this, the metal and surrounding area will need to be perfectly clean and free of oil and grease, and you need to sand back the metal you will weld to until you see bright, clean metal.

Better than welding on a sprocket. If you weld it on you will have to split the cases to change the output shaft when the sprocket wears out.

[Grendel]

Because i vaguely know the right end of the spanner and not much else mechanical
____________________
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]

[Grendel]

[MaybeGuy]

[Paddy Blake]

I took a shaft out of a Transalp and took it to a place to get it welded and fix the splines.The guy there gave me a price that was higher than the 210 euro I ended up paying for a shaft.

[MaybeGuy]

DIY. a welder costs less than that.
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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

[Grendel]

True except i have no idea how to use a welder.

But i do have a friend who may. But i think its a Arc welder he has. Would that still be strong enough weld?
____________________
Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[Blau Zedong]

Welding the sprocket is all well and good as along as the heat doesn't kill the output shaft seal. Then you really are fooked.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

[Frost]

I had a bike that was worth £5-600 when a gear went inside the box. Local garage quoted me £1100 to fix it. Probably total bollocks, they just didn't want the job. Bought the gears for it for £110 and fixed it myself in a few hours.

A bike a garage says isn't worth it, isn't worth it for them. Provided the cost of fixing is less that the cost of a replacement bike i'd say do it yourself. At very least get it all appart and see what you think before buying parts. At the very least you'll learn something

[MaybeGuy]

[Kickstart]

[c_dug]

[evoboy]

[MaybeGuy]

i misread. i thought you meant if the splines were repaired.
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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

[Pete.]

As Kickstart said, can we have a photo of the shaft?

A quick squirt with the mig isn't going to melt the output shaft seal. Welding on a sprocket is a mighty bodge but it need not be done just the once. It would be possible to change the sprocket by grinding back the weld. The temper of the shaft would be affected by the welding though and if the splines are completely gone the weld would be carrying the whole load of the engine.

Building up the splines with weld and filing to shape isn't that much of a bad idea, but would be a lot of work and of course the new spline tops would not be hardened. Keeping the shaft greased would help reduce wear.
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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]

I'll try and get some pic's tomorrow.
____________________
Past bike: 2004 Hyosung Comet
Current bike: 1993 Honda Transalp
Transalp Page: https://www.facebook.com/home.php?ref=home#!/group.php?gid=11418462079

[Grendel]

[Paddy Blake]

The shaft is like this.