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Standard: 35 47 7 2 per leg retained by circlip You may use 10 mm single seal. Should be a fork oil seal double lip type. Take great care removing circlip and seals to avoid damage to casting. I always fit gaiters to any bike I own, no time for dust seal approach. Current seals in since 2007. Mdina ...

Really good work and a great result. You might consider a quick write up for ATG.

It’s yet another thing isn’t it. Can’t be left alone can we? The garage or workshop is often the only escape.

I have just looked at my old pistons, one of which has a crack near the gudgeon pin . Same number as you have. On the top face there is a 4 ( on the “ pointy” part) which I think is + 0.4 mm Lots of info here- you’ll likely need to translate it. https://www.lamaneta.org/forolamaneta/viewtopic.php?t=...

I’ve just tapped out these pins if tight but usually they are not. A very gentle tap with my light glazing hammer and an old nail ( suitably named!) No points for hitting the casting though.

I have a K1 and a Coguaro. The K1 always starts with just the left hand choke and by the time I have sat on the bike for half a minute it is ready to go. Guess if we had winters like the old days it would need longer but who needs -17 oC? The Coguaro has a cable choke via a splitter. I keep plenty o...

My Sport has now 80000 on the clock- 48000 were Km then a converter was fitted . I have only had one slightly tight clearance last time I checked. That is a February job. I try and use the E5 fuel and chuck some Valvemaster in ( to make me feel better). Current formulation is supposed to stabilise e...

And make sure to have both taps open. Is one the electric variety? A good flow is very important as us old chaps know.

They came and went to a happy Norton owner I am afraid-my swing arm just touched the pillion bolts/ silencer bracketry.

A horrible discovery. The 501’s are known to crack beteeen the valves but I have not heard of this on a 350.

At least you haven’t got a flat spot! You have something like Main jet 112 Pilot jet 50 or lower say 45 Atomisers 260 BD or K Choke plungers OK - with the float bowls off you can attach some tubing to the choke jet and try blowing through. I once removed the choke jets and blanked off with appropria...

Air filtration and exhaust backpressure have quite a bearing on the correct performance of these bikes.

Main jets from Eurocarb are not too expensive.

My 83 K1 never does this. Had it since 2007. Main jet 112. Let us know jets, needle type and position when you get the chance. Mine did have dissimilar atomisers initially. Maybe a mod for nipping around the Colosseum? My atomisers were 260K but I drilled them to make them BD which I think are nla, ...