I have seen some wheel paint called 'Simonize five wheels' that was the closest colour I could find but none of my local places had it. The original colour is more metalic grey than a silver so in the end I plumbed for silver produced by smoothrite that had the right surface finish and I did as Sharpy said I warmed the parts in the oven first and stood the can on a radiator, (I tried all the VHT stuff plus a heap of others but surface didn't seem to close and seal on those paints). the short engine would not go in the oven so I left it on the kitchen counter for a week before and after paint.
Only the top crankcase is painted anyway.
After painting (outside) and bake I left the parts scattered around the house on radiators.
On initial start up I had a sizable petrol leak from the carbs all over the crank case which has not affected it and it's still good. Most paint is more than able to handle engine tempretures even on the cylinder head.
Just as a side, the smell of the paint was not overpowering and I did it when I knew I wouldn't be disturbed as my girlfriend is pretty house proud, and trick I use is when she points and says "What's that doing in here" is just say what? and if she persists (hardy ever now) take a long time to explain why it is so important that it has to be done that way, she gets bored and goes off and does something else.
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