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By Super45
#80996
Hi John L, the bullet is a 2000 350 I wasnt of the exact date no but this bullet seems to be such a miss match of bits and bodges im not sure whats what exactlyanymore , the clutch I bought was a 5 plate clutch suitible for iron barrled 350/500s from an india seller on ebay but it didnt say what years it was for, the one that came out was a 4 plate, so technically the old one may of been incorrect for the age of the bike? once fitted the 5 plate, one the last friction plate fitted into the basket nicely but the final metal plate would go in but wouldnt of fitted on the centre splines so would of been flopping around on the 3 bits of the clutch centre the pressure place slides over which I didnt think was ideal, when all done up in this format of 5 plates the outer springs were coil bound at you couldnt get the clutch to sperate at all as the basket was so full which made me realise how the previous owner had bodged the old clutch , removing 1 friction and 1 metal plate the clutch now fits together nicely and seperates as it should and with a slight adjustment it seems to grip enough to turn the engine over via the kick start so far so im hoping for the best so once ive soted the battery and put it finally back to gether i will road test it
By simon
#81046
I reckon they get grabby because as they heat up the driven plates buckle and that reduces clearance. I can only speak for the old style clutch on the iron barrelled 350 but mine was sorted by firstly making a device to stop the cover flexing and reducing movement, secondly usung cork friction plates which have a gentler take up and are thinner which gives more clearance. Ive tweaked my motor a bit so that it initially slipped the clutch under load but the addition of three heavier springs sorted that and it has been pretty trouble free since then. Ferrodo friction pads are very good on heavy billet or cast clutch baskets but they are just too fierce for a basket designed for push in cork friction plates. I've found a few times that ferrodo inserts have caused problems. Most recently a friends 16H Norton which had a clutch like an on and off switch. Being an bike orginally sold to the NZ Army in 1939 it had ferrodo from new but either it had degraded or it was always a prick of a clutch. A full set of ex wine cork inserts and it now works a treat, smooth and progressive.

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