Heavy Twins

I used to run my 99 with a 21 tooth engine sprocket, I liked it for touring. I decided to replace the chain and then discovered that I should have had an extra half link, oops, I've been running with a stretched chain.

Hi, y'all
As I've mentioned in previous posts, I'm rebuilding a basket case 1992/3 650SS. I didn't take it apart, I just took away a garage load of boxes, some parts aren't even Norton parts.

I'm investigating why my gearbox kickstart action is so heavy. It's not the pawl and layshaft end float seemed acceptable according to the Old Britts tech pages anyway. 

Can anyone tell me what the 1/4 cycle threaded hole on the welded to frame steering stop plate on my 68 650ss is used for as I can't seem to find any info for it's purpose.

I took my 1958 99 out to the Merrie Lion and Motor Museum meets today and was impressed by the club representation at both sites.  Once out of the narrow lanes and onto the B4100 I got the bike up to speed - it was running well and then started to

My recently rebuilt 56 Dominator 99 has an oil leak and I don't know where it is coming from.

I have 1959 dominator 88 which gearbox should it have laydown or AMC also are the mounting plates the same for both

There don't seem to be published end float limits for Dommie AMC box end float.  Should they be shimmed?  I would guess something like 12 though cold would be a number to aim at, but does end movement have any effect?  My cover is off (to replace

The 1959 ex Paul Smart 600cc Dominator which is immaculate and was totally rebuilt by a mechanic friend of Paul's "lurches" forward when pulling away in both first and second gear, The clutch was totally stuck when I got the bike so I had to free