Singles

I'm looking for Ian's contact details if anyone can help.......

I have a 1950 Big 4 with no spark. I have checked the usual. plug, cap, lead and have got to the pickup on the Mag. I am trying to remove it but its more than fiddly. Very difficult to get at the 2 screws holding it on.

Is there an oil seal on the drive side main bearing, 1959 ES2.?
Is it available?
 

Hi all - my posting of a couple of weeks ago drew no response, so I am starting to see the Big 4 engine as a bit of an unknown, generally speaking.  When I look at the rest of the bike, there seems (certainly in WD days) a fair bit of com

hi all.

I wonder if someone could point me in the right direction luckily enough for my lovely Norton 500 I have lots of historical information but there is a gap and it could be quite an interesting gap.

Hi All
Going to adjust rear chain on my plunger es2.

Having fitted a rev counter drive to my 1955 inter, I find that the gear lever fouls the rev counter gear box and prevents me from changing gear.

Not looked at these before , so a few questions , is the 7/8 center  handlebar lever of benefit ?.does it use different clutch springs to a later amc clutch ?

Hi Does anyone know the length of the original valves for these early Moore CS1s?

I have seen short and long spring sets by Paul Norman for these.

Does anyone know of a reliable info/data source for the post-war Big 4 engines?  Having learnt enough on the 16H's (current bike is now running superbly - see recent carb conversation) I decided to expand my SV experience to the big brother.