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Atlas monobloc carb jets

Forums

So, this bike has reverse chamber 389 monobloc carbs. I have fitted new needles and am now going to replace the main jets as they are probably worn like the needles were. The bike has high compression pistons and thorspark electronic ignition.

Cam Follower Inspection

Forums

 Have I missed out a page or so from my print of the Factory workshop manual as I can't see any reference to the cam followers!

I was hoping to ask what I should be looking for but I think it's not going to matter any how. 

Deck Height

Forums

As I know nothing of the history of the engine I have, could anyone give me the dimensions of the cylinder barrel height - From base to headgasket face?

"Services" tab makeover?

In the light of recent postings both good and bad regarding suppliers, perhaps the "Services" tab could do with an upgrade, and perhaps given a bit of a "splash" to members who may be unaware of its existence.It does look somewhat dated now.

1928 CS 1 history

Forums

Hello,

my CS1 from 1928 with frame no. 41872 and Engine No. CS14954 needs history information.

First, who can tell me if the bike has "matching numbers" or of what year, and any other info.

Atlas tank badges

Forums

The side tank badges on my Atlas have severe pitting on them. They clean up and the chrome does attempt to shine through but that pitting aint going away.

I've heard they're made of a type of pot metal that doesn't take chroming well.

Big End Wear

Forums

Is it usual for the T/S big end to wear out before the D/S?

I ask because I've just taken the conrods from the crank and the D/S is on a standard shell and looks pretty good but the T/S is down to the copper and is on a +.020" shell !!

gearbox bearings

Forums

Does anyone know if the Tufnol caged gearbox bearings are available, as recommended by Mick Hemmings - supposed to be kinder on the layshaft. All rebuild kits I've seen have roller alternative.

Thanks

Dave Kay

Norton 16h

Forums

Hi all

i have a 1936 Norton 16h as I work away a lot I was wondering if anyone knows of anyone in the London area can or knows anyone that could commission the bike for me and get it up and running 

 

thanks

 

Oil breather

Forums

Now that I have got my Jubilee engine reliably kicking over, I noticed that the pipe above the drive sprocket (see picture) is producing oil (which is now all over the patio).

 



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