Heavy Twins

I have a  fully restored carb by Martyn Bratby ,beutifully machined . The issue is that its a 389  with a 1 1/8"  bore .  The standard carb is 1 1/16" .  Its not a simple change as other components will need a little work. The bike is fitted with  a filter system and Higher than std comp pistons from a 650. . What do you think?.

For those who like to experiment ,I have run out of the 10/40 fully synth that i got for free a few years ago and have returned to the good old SAE 40  of yore for the 99.  I have noticed that the motor is much harder to kick over but is not so clattery when cold or very hot . It was built with racing clearances 30 years ago but is not noisy really . I expect to burn less oil and the plugs to stay a bit cleaner  (If i cant start it I will burn no oil at all but the plugs will get very messy!) .

I've recently taken on a 1958 Dominator 600. It replaced a Triumph Daytona 955i which was a bargain and worked brilliantly but was too fast for my needs (national speed limit broken at 40% performance) and the riding position made it uncomfortable over any distance. Apart from the great engine, suspension and brakes, it had very good mirrors.

hello,     i thought i would just bore you to death with a couple of photos i took when i repaired my model 7 tool box in the covid years. doing it stop me going around the bend. when i started it i thought of that famous saying, how hard can it be. on starting it i found that the base was rotten and the lower back piece plus the strengthening trim around the edge and lower lid . i straightened the hinge out  and fitted a stainless welding rod in place to act as the pivot. i did all the welding and then had to add filler it to finnish off.

There was a thread a few months ago regarding tensioning Dommie timing chains, and I offered the use of a cutaway timing cover that I had. I said at the time it was in (deep!) storage, but it is now to hand. If the chap concerned is still looking to borrow it, please contact me via messaging.

Hi... I'm soon going to need a pair of exhaust pipes for my '62/3 650SS rebuild. Looking in the club spares shop there are a pair (Part no. 24020/1) for the reasonable price of £131 +VAT, but there seems to be no way that I can add them to my "basket". It doesn't state that they are unavailable but do I have to assume that's the case? John