Yamaha XT660X & XT660R Jerking problem / Cush drive rubbers fix (Part 1)

I have had 7 XT660 over the last 20 years 3 xt660x and 4 XT660R . A lot of people think all xt660 have really bad fuelling problems, they don't. I have found that only 2 out of the 7 XT660 I have had , had a cutting out problem when coming to a stop/slowing and a KEV fuel mod fixed that. The main problem the the jerking when putting the power on and off is the CUSH DRIVE rubbers. if you have bad jerking check the cush drive rubbers you will probably find they have to much play in them. By just replaying them you will fix 99% of the jerking. And thats a fact. I bought one 2 years back and if you did not know about the cush drive rubbers on the XT660 you honestly would have thought the bike was F**ked it was that bad. £30 fix and it was sorted. I have had to replace the cush drive rubbers on 6 out of the 7 XT660 i have had its tat common. Hope this helps some people out.