Where can I get...

[kevinl]

If this is what I think it is it should have six 'legs' sticking out at equal angles and equal sizes, there are only two left. It should fit between the engine drive plate and the gearbox driven plate so that there is a 'leg' between each pair of drive dogs.

 

That way the engine drive plate dogs push the rubber 'legs' and the rubber 'legs' push the gearbox driven plate dogs. They also smooth the drive by acting as a buffer when the the gearbox drives the engine, for example on the overrun when closing the throttle.

 

If you are making this yourself you should try to get all the 'legs' as accurate as possible to be the same size and the same angle apart otherwise one 'leg' will be doing all the work. Also it needs to be a nice fit - too tight and it will put extra stress on the bearings and too slack and it will give a sloppy drive and wear out quickly. I don't know anything about the rubber on eBay but I supect it will be too soft and not up to the job.

 

These are actually precision made parts - I wish you luck making one but I think you would be better of taking the whole coupling to an engineering bearing factor and getting the proper spare part.

I think Hovrin has got it right, a similar thing is used in the rear wheel hub on motorbikes to absorb some of the transmission snatch, There's a link below showing one from a bike (which has 8 lugs rather than the 6 yours had from the look of the original picture you attached) it looks as if there could have been 6 once upon a time. The story seems to be Kingfisher engines were imported from China with no real spares network on place. I don't see why carving one put of a block of the correct type of rubber shouldn't work, I doubt you'll get a part for a Chinese engine over the counter in the UK but it is worth a go.

K

 

http://www.google.co.uk/imgres?imgurl=http%3A%2F%2Fi01.i.aliimg.com%2Fimg%2Fpb%2F950%2F617%2F516%2F516617950_782.jpg&imgrefurl=http%3A%2F%2Fsinha.en.alibaba.com%2Fproduct%2F650144897-212891416%2FMotorcycle_hub_damper_rubber_cushion_rubber.html&h=499&w=562&tbnid=r-mYE9QAKO7KFM%3A&zoom=1&docid=HHcF7adadqvJaM&ei=7VYCVLqlD4rgaIqKgvAJ&tbm=isch&ved=0CHAQMyhFMEU&iact=rc&uact=3&dur=3588&page=4&start=66&ndsp=24