Alo' All.
Another question from someone unskilled in engine tinkering (but learning!)
My GB (600cc~) suffers heavily from having good and bad days (/starts?) with performance, weather does not seem to effect it but I don't think she likes cold days as much.
For example on Saturday I went for a ride, it wasn't pulling that hard (still went OK) then I parked up for an hour or so and when I started her up again I could definitely feel the increase in power and smoothness.
About 6 months ago she was bored out from 500cc to 600cc~, Carb was replaced with a mint spare and ignition was fully checked over.
I heard someone say something about "Power Valve" but I thought that was only for 2 stroke engines? - If not, tell me more!
Next question is around the Air / Fuel mix.
I'm pretty sure she's running a bit rich (is this a problem?), she blows a bit of black when she's starting (first 3 mins of cold running~) and the exhaust is quite sooty black on the inside.
I know where the adjustment screw is on the carb (it's a bugger to get to), is it easy for me to adjust this and tell the difference?
If so, in or out for leaning it out? What's the best way to do this (take her for a ride up the road after each adjustment?).
Another engine characteristic I have is that she often 'pops and stops' apparently this is typical of big singles, but it can do it during down-revving which causes it to jerk around a bit.
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