Post by muttsnuts on Feb 19, 2024 11:01:38 GMT 1
This old chestnut, anyway, after a lot of effort I've managed to get some 21mm and 24mm clutch damping rubbers made out of the correct material and the correct hardness (Shore 90/95)
Over the years I've serviced and overhauled alot of clutches and the common theme with the current aftermarket rubbers is that they are made from the wrong material and the incorrect hardness, the picture below is an example of what I see far too often, 4 smaller (21mm) pucks where fitted under a year ago by the bikes owner, as you can see, the 4 aftermarket ones have disintegrated, it is not unusual for clutches to have both the 21mm and 24mm pucks fitted, its also not unusual to see "D" shaped 24mm pucks either
From the many clutches I have stripped the one thing I have learnt is that Yamaha certainly appeared to fit whatever they could get their hands on, so far I've identified 4 different style pucks, varying in 21mm and 24mm diameter, some are round, some are "D" shaped, some have all the same size fitted, some have a mix
Anyway, I've now had some 21mm and 24mm pucks made (1000 of each), I'll pop these on my web site, if anybody needs any just let me know, please note I am the only one as far as I know that has the 24mm pucks, if you have "D" shaped pucks then you need the 24mm pucks, then I just trim them into the correct "D" shape
Over the years I've serviced and overhauled alot of clutches and the common theme with the current aftermarket rubbers is that they are made from the wrong material and the incorrect hardness, the picture below is an example of what I see far too often, 4 smaller (21mm) pucks where fitted under a year ago by the bikes owner, as you can see, the 4 aftermarket ones have disintegrated, it is not unusual for clutches to have both the 21mm and 24mm pucks fitted, its also not unusual to see "D" shaped 24mm pucks either
From the many clutches I have stripped the one thing I have learnt is that Yamaha certainly appeared to fit whatever they could get their hands on, so far I've identified 4 different style pucks, varying in 21mm and 24mm diameter, some are round, some are "D" shaped, some have all the same size fitted, some have a mix
Anyway, I've now had some 21mm and 24mm pucks made (1000 of each), I'll pop these on my web site, if anybody needs any just let me know, please note I am the only one as far as I know that has the 24mm pucks, if you have "D" shaped pucks then you need the 24mm pucks, then I just trim them into the correct "D" shape
