Slipping Vespa kickstart

[paulnobodyimportant]

Anyway, looks like It will be later in the week, once clutch tools arrive, that I will take the clutch out and give feedback for future reference. Also noted, after no spark, that the Halle Berry box has gone with zero ohms, so I'll replace that.

Thanks for the comments, its given me some confidence in the clutch being the culprit.

[GLscoot]

Had similar prob recently clutch arm had seized in clutch cover so not returning fully

Seems to have been a common problem this year, probably down to the weather throwing all the shiite up onto the engine and the fact we have been able to ride all year so far!

[goldeneye]

small plastic bag full of grease cable tied round your clutch arm , stops all the salt and s**t seizing it. ( top tip from angelo strocco (RIP) late owner of angelos scooter station, now Motech)

[paulnobodyimportant]

Took clutch off tonight and found problem

Clutch nut relatively loose
Woodruff key sheared
Gammy metal around hole, see photo below:




I know that the answer is yes, but I presume this is the part that I need now (23 tooth one) plus some new corks as they are almost worn away.

http://beedspeed.com/vespa-clutch-drive ... -1832.html

[bazman]

I'd check your crank also, as at a guess the keyway will be fecked also.

[Jack221]

Seems like an ideal opportunity to buy a complete Cosa clutch! On a Cosa clutch it is easier to get the clutch nut really tight and stop this happening again.

[paulnobodyimportant]

Just taken the above clutch to the office today and we have had a team strip down. All sorts wrong with it and not worth a re-build of any kind. A Cosa looks the favorite. However, looking at the SIP and Beedspeed site, they do mention that a standard Cosa clutch can be poorly built etc. Considering that this new Cosa clutch will be going into a standard Rally engine, is there really a major issue.

Thanks

[GLscoot]

No not really, SIP will be trying to push you towards buying there clutch and I don't know why Beedspeed are giving it a hard time, try PM Tuning i have always found them to be cheaper for major components and its free postage over £50. It doesn't matter what clutch you buy it should be stripped and all ruff edges on plates & basket should be filed down, 10/15min job and the cork plates soaked in gear oil overnight. Some say tape a piece of sandpaper to a flat surface and put pressure on each side of the plate just to take the sharp edges of the edge of the plates. I would also buy a new nut, woodruff key, pressure plate, clutch cable inner, 30 sae gear oil and brass plunger and even the 'o' ring for the clutch cover. None of these parts are expensive.
Make sure the Cosa clutch fits, I am not sure if it does fit. You may need a P2 clutch cover.

[goldeneye]

buy an indian clutch for 46 quid, some DR springs and a spacer washer. sorted.

[ArmandTanzarian]

Just taken the above clutch to the office today and we have had a team strip down. All sorts wrong with it and not worth a re-build of any kind. A Cosa looks the favorite. However, looking at the SIP and Beedspeed site, they do mention that a standard Cosa clutch can be poorly built etc. Considering that this new Cosa clutch will be going into a standard Rally engine, is there really a major issue.

Thanks

I went through a couple of Cosa clutches. Both really badly made. Nothing obvious but the basket on both of them wasn't deep enough to let the plates disengage fully and on one of them the circlip groove was machined badly and the clip kept popping out.

Next rebuild I do, I'll probably stump up the cash for a SIP one.