Annoying wobblily kick starter 350LC

[hollo]

Hello ,

Has anyone got a simple solution it fix a wobblily kick starter ? . When I go over about 60mph it decides to flop out and gets in the way - which is most annoying . I've already replaced the spring and ball bearing , but the kick start itself is very wobblily on the shaft . It's as if it need a shim made just to pack it out . Is there anything that anyone else has done as a guide for me ? 
Thanks
Mike .

[JonW]

you can shim it and try that, nothing to lose etc.

IME its usually its the shaft and the kicker that have worn oval so the spring/ball isnt working as designed.

[muttsnuts]

biggest thing missing normally is the bevel washer under the big "C" clip holding the kick starter in place, that certainly doesn't help

[hollo]

Thanks for the tip Dave , I'll have a check

[elsiefan]

I used shim washers to pack the kickstart under the C clip and bevel washer, worked ok for mine, but it didn't 'flop out', just rattled annoyingly.

[urbantangleweed]

I have the same problem on one, tried all the usual stuff but it still has a tendency to sometimes flop out. Going to try something different, I'll post details if it works.

[vectisitch]

Come on guys. At our age things do tend to flop out sometimes. I'll get me coat!

[crogthomas]

On my YPVS for years I retained the kickstart with a big rubber o-ring tied to the frame. A YPVS clutch o-ring as it happens.
Even now whenever I go to kickstart any bike I instinctively go to unhook the kickstart from the non-existent o-ring first.

[urbantangleweed]

Right, I've finished the "fix" on my floppy out one 😊

Dismantled the two pieces, removed ball and spring, drilled all the way through from the spring housing side to 4.2mm and flatted the outside off. Tapped to M5 (same diameter as the spring) and inserted a flat ended, 6mm long internal hex M5 stainless grub screw with a coating of bearing lock. Tightened the grub screw in to give the desired tension and hey presto, no more wibbly wobbly 😊

No need really to flat the outside off, I did it in case I decided to use an Allen bolt reduced to size if the grub screw thing didn't work.

The bearing lock will go off and should hold the grub screw in place no problem.

[chrisg]

Apr 21, 2024 16:16:20 GMT 1 urbantangleweed said:

Right, I've finished the "fix" on my floppy out one 😊

Dismantled the two pieces, removed ball and spring, drilled all the way through from the spring housing side to 4.2mm and flatted the outside off. Tapped to M5 (same diameter as the spring) and inserted a flat ended, 6mm long internal hex stainless grub screw with a coating of bearing lock. Tightened the grub screw in to give the desired tension and hey presto, no more wibbly wobbly 😊

No need really to flat the outside off, I did it in case I decided to use an Allen bolt if the grub screw thing didn't work.

The bearing lock will go off and should hold the grub screw in place no problem.

I like that, and its a simple easy fix. Result.

[JonW]

Ahh ok, so this allows you to get more tension on the spring. Could you also have shimmed behind the spring or used a longer/stronger one instead?

I guess this part of the kicker isnt hardened, Ive been told the other part is but had no issues drilling when I needed to so not sure on that one.

[urbantangleweed]

Apr 22, 2024 1:48:43 GMT 1 JonW said:

Ahh ok, so this allows you to get more tension on the spring. Could you also have shimmed behind the spring or used a longer/stronger one instead?

I guess this part of the kicker isnt hardened, Ive been told the other part is but had no issues drilling when I needed to so not sure on that one.

Yes, packing the back of the spring would work too and I tried that, but it's a long trial and error process to get just the right amount of packing behind it. Too little and it's still loose, too much and it's too tight. A longer spring would also work, but how long a spring to fit and what strength spring? A longer spring would also make it trickier to assemble back together (as does packing the spring out).

With the grub screw method, you can add just the right amount of tension required and the initial fitting together of the components is simple and easy.

The grub screw idea was something I'd thought of trying some time ago, so it was an interesting exercise to actually do, and so far, it seems to work really well.

[ulsta]

There was a thread about fitting new Belville washers on the kickstart to stop them wobbling.

rdlccrazy.proboards.com/thread/59044/sorted-kickstart-conical-washers-90208