OK. Somehow I shorted something out and fried the condensor. When I fix it (hopefully this weekend), I think all (hopefully) I need is a new tyre or two for my blue slip. (Then the fun begins!) However, when I replace the condensor, I know I'll have to reset the (new) points and check the valve clearances etc. I am very conscious of the fact that (a) Janie is only running on 3 and a half cylinders (I wouldn't know myself but the mechanic I am taking it to for the blue slip heard it and said straight away that's that what it was); and (b) No 4 exhaust valve clearance is very tight even with the adjuster bolt thingy all the way out! Question 1: Would the tight valve clearance on No. 4 exhaust valve be the reason for it running 'only on 3 and a half cylinders'? Question 2: Am I likely to be in need of an engine rebuild and how much is this likely to cost? (1800 twin carb) Thanks, Baz PS. Go gently with me!