by which time the bike as cooled. i change my plug on the front but sort of sat their deliberating somewhat whilst doing it and by the time i'd checked over several other things it started first kick on both cylinders.

normally it would kick in occasionally when riding back home but the last trial run it stopped firing on that cylinder altogether. when i got home and left it for a while it started again.

read the new thread as a guy with an mc21 has had similar problems and identified a dodgy coil, which is what i am going to try as having a spare coil if i'm wrong isn't such a bad thing to have.

have you solved your problem with the new plud or did it persist? how many miles out of a plug then?

thanks