Heavy Twins

Hi can anyone help me with setting the pressure on the check valve located in the timing cover
please.

Does anyone know where I can get my Norton Dominator drake drum skimmed? South London - West Kent area
Thanks
John in Bromley

A large auction house is advertising a 1966 Dominator 99.  I'm not thinking of buying it (one 99 is enough for me!) but I didn't think they were still making 99s in 1966?

Waiting for the Cylinder head to come back with new G&S Valves and guides so got things ready for Assy of the rockers .

Hi, I am looking for some information on the repair of a an Advance & Retard unit, The unit is stiff and does not fall back to the the retard position. 

removing the bottom nut on the 650SS is a problem.  Unless someone makes a special spanner I am going to have to cut up one of mine. Could drill out the stud from the timing side !. 

Changing these to chrome but cannot decide on round or rectangle type bar end mirrors for by '61 Dom 99 DL.

What is the preferred style?

thanks
Paul

Hello, I have a N15CS without a seat and want to make a 3/4 length seat, bit like P11.
Does anyone know any other seat pans that fit the N15CS frame.
Thanks Richard 
 

Anyone tried one? Do they blow the fuse? Have a 12v conversion. 99 dl. 
I've got a full length crack on mine. 
I can't find single headlights but found a pair of 7" for a mg which look like it'll fit with h4 bulb and pilot. 

The current (Feb2025) issue of Classic Bike has a nice piece by Ric Parkington about the Pll hybrid. As well as a brief history of it's genesis, there is his road test, and some period adverts.