Well I've been and had a look at, and a ride on, the Norton previously mentioned.
Compression does seem a bit high, I haven't checked it with a tester but it takes quite a kick! How much should I worry about this and could I double up the head gasket to drop it a bit or is this a bumb idea?
The guy selling it is a very experienced engineer and the work that has been done seems to have been done to a very high standard, with any grinding etc work done by well known Norton Specialists (RGM and Mick Hemmings, some Norvil Parts in it)
Right now I am in two minds about this... Here are the pros and cons:
PROS
1) It has the mods that I'd have wanted to do on any Commmando I got - Mikuni Carb, Boyer Bransden ignition, Larger disc, Grimeca caliper, master cylinder rebored and sleeved by RGM (brakes were excellent), belt drive primary, luggage rack (although that will need some reinforcing, hagon shocks, progressive fork springs.
2) For the money it would cost me a lot more to get a stock 750 and do the above conversions, and I might not do them to the same high standard, even if my ego reckons I could!
3)As it's ready to ride I can spend a decent amount of time riding it around before the off and decide if this is actually a completely dumb idea, chicken out and get a GS, and a paper bag to put over my head to hide my shame!
4)I would only need to add a strut either side from pillion peg mounts, a bash plate, tidy up a bit of wiring and add some indicators
5)I was grinning like a chipmunk after a quick blast up and down the bypass
CONS
1)The crankcase journals were recently reground and + .020 shells put in 150 miles ago so the engine is still being run in (but at least I could run it in in the UK instead of rebuilding a bike myself and the running it in on the actual trip (bad move!)
2)It's already on a +.040 overbore so I might end up having to source a new barrel and pistons on the road, rather than just having to source pistons and a local place that could rebore and hone the old barrel
3)The footpegs had been moved back. The riding position felt OK for the short time I was on the bike but could do with having a sit on a bike with them in the original position
4)Getting into first was a wee bit tricky, but this felt like there was a knack to doing it right rather than there being a problem with the internals
5)I'm not sure the vendor was entirely happy with the thought of his pride and joy being dragged all over the planet
Right now I just can't decide what to do! I want the bike, and I know how much hard work the trip is going to be on that bike now that I've been on one