Re: Valve timing cams
Posted: Mon Mar 19, 2018 8:21 am
[quote=Has it ever run right for your friend or has he always had the backfiring problem? If it hasn't, then Duncan's comment about a cam from an early Matchless engine (i.e. with the mag at the rear of the cylinder) may be a clue/relevant.
To be honest, I cant really answer that. This is the first old bike hes had and it was only after I rode it that I said that wasnt right. Maybe it has been flogged...
Now that I have the timing side apart (mostly) I think it might be an idea to remove the question by putting a correct exhaust cam in as it is different to the inlet. The exhaust has a line on the front and when I took it off, the dot was on the back face (and only one dot in total on that face). The inlet cam has all sorts of numbers on it (which I wrote down but dont have on me) but the exhaust doesnt have anything...
Too many questions???
To be honest, I cant really answer that. This is the first old bike hes had and it was only after I rode it that I said that wasnt right. Maybe it has been flogged...
Now that I have the timing side apart (mostly) I think it might be an idea to remove the question by putting a correct exhaust cam in as it is different to the inlet. The exhaust has a line on the front and when I took it off, the dot was on the back face (and only one dot in total on that face). The inlet cam has all sorts of numbers on it (which I wrote down but dont have on me) but the exhaust doesnt have anything...
Too many questions???