Nortons - General

The things you come across in our hobby are both frustrating and rewarding. Just when you think you've got one thing sorted, something else comes up. That's frustrating now, but when solved, it just adds to the satisfaction.

Could anyone advise me if a multi grade oil (Millers classic pistoneeze 20W50 would be ok to put in my M50 gearbox? .

I've been given a beautiful polyester tank for my Surrogate Manx racer project. However, the inside is a mess and definitely needs a proper coating.

I went to the Motorcycle Live Show at the NEC today. I mistakenly thought that Monday would be quiet rather than a weekend, but no, it was full of people.

An elderly Dominator 99 I purchased has been fitted with bronze clutch plated bearing on steel plates. The clutch slips with the engine loaded, before full throttle.

Hi I have just purchased a beautiful Dominator 99 Deluxe and become a club member. Pic attached. 
I have a couple of questions if I may.... 

Just read my very late copy of RH magazine and my hopes and heart have been boosted.  In the letters section there is a request to celebrate the " 75th Anniversary of the Featherded-framed Manx Nortons"  next year.

I am replacing the swing arm gusset plate on my slimline frame and wanted to know if there is anybody out there that can re-stamp the identification numbers to the new gusset plate?

Hello.Can somebody tell me if it's possible to tell what sort of bike a feather bed frame is from using the frame numbers. 

Thanks. 
Nick.

Today I bought a pair of roadholder forks on an autojumble, including yokes. The yokes have a width of 7" and the fork measures (from top of nut, to bottom of the lower slider) 31,5".