Thanks everyone for the replies, Ken has send the part no's as well. Can anyone supply me with a MK111 .pdf copy of the parts catalog?
John, yes I started with just the basics with this build but as I got further into the internals of the bike and attended more race meets i could see the sense in being a bit more thorough with it all while at this stage.
I have modified the rear brake drum so I can change the rear sprockets instead of the gearbox, so dont have to remove the clutch each time.
Although the standard rear sprocket cast to the drum is 42 tooth , my starting point will be 44 and start with a 21 or 22 on the gearbox. Test runs will tell all.
What is your estimated top speed at Puke and what sort of RPM are you pulling down there with the BMW?
Regards Mike