02-07-14, 11:36 AM
I've hesitated to post on this because I'm not sure of the engineering stuff at play here. I've not encountered any clutch problems with my Fazer or R1s, and the 'dry plate' issue you mention doesn't seem to be a prevalent one.
I'm inclined to think that if there were an advantage to having extra holes in the clutch hub, Yamaha would have put them there already. Alternatively, if this were considered a good DIY mod, I would have expected it to show up on Fazer and R1 forums long ago. I've not seen anything on it in 12 years of Fazer ownership.
I doubt whether adding a few holes to the basket will cause it to go out of balance or weaken it significantly but that's just my opinion. I could be wrong.
I do mostly clutchless changes from 2nd gear upwards but when I use the clutch, I find the changes plenty smooth. Clunking into first from neutral is normal, and is louder when the motor is hot and the oil thinner.
I tend to look to the gearchange linkage and clutch adjustment first if I encounter a notchy gearchange. That said, Jim reports clear improvement from his mod and who's to say that he hasn't hit on something new and worthwhile?
I'm inclined to think that if there were an advantage to having extra holes in the clutch hub, Yamaha would have put them there already. Alternatively, if this were considered a good DIY mod, I would have expected it to show up on Fazer and R1 forums long ago. I've not seen anything on it in 12 years of Fazer ownership.
I doubt whether adding a few holes to the basket will cause it to go out of balance or weaken it significantly but that's just my opinion. I could be wrong.
I do mostly clutchless changes from 2nd gear upwards but when I use the clutch, I find the changes plenty smooth. Clunking into first from neutral is normal, and is louder when the motor is hot and the oil thinner.
I tend to look to the gearchange linkage and clutch adjustment first if I encounter a notchy gearchange. That said, Jim reports clear improvement from his mod and who's to say that he hasn't hit on something new and worthwhile?