Heavy Twins

Lots of discussion on this in the past but I was wondering if anyone has the latest information on this.

Can anyone tell me what the thread form the two attachment screws are on the battery box cover? The threads are in poor condition and putting thread tape on them isn't doing it for me any more.

I'm trying to remove the valves from the head. One exhaust valve came off OK the other won't. 

Good afternoon
I am please to say DDR (Dads Dominator Resurrection) burst into life last night-some of you may recall I posted a while ago with ignition issues.....

Please can someone advise me as to the best engine oil for my 1963 Norton 650ss  to accommodate easy kick starting without compromising wear and tear ? Has anyone had experience with Castrol XXL40? 

I remember watching the film "Girl on a Motorbike" in about 1967 but seem to remember a Norton 650ss being ridden . However I have recently been lead to believe only a Harley Davidson was used..

Anyone make a Carbon Fibre Manx style petrol tank for a wideline ? and are they unaffected by Ethenol ?

Hello all,

Hello all

I'm trying to remove the primary drive case from my 650ss so I can change the gearbox oil seals and replace the left hand serrated footrest tube which has lost all thread. Simple job huh.

After fitting Thorspark electronic ignition and sorting out various electrical issues with the assistance of Al Osborn, I participated in the Jimmie Guthrie Memorial Run a couple of weeks ago.