Quote:
Originally Posted by lelshaddai
The funny thing is have not got it to ping yet. Even when I had it at 20 degrees at idle and revved it up.
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I was just having a think about that and the range your distributor has. I would say that it has an advance range of 25 degs. I would personally set the max advance to 40 degs, then see what it's like. That should give you about 15 degs at idle, maybe a bit less. As I say, most Amazons full advance are 40 in the book, though many run on about 38 with modern fuel (low octane regular unleaded).
All said, I'm pretty confident your running on problem is fuelling. I have no knowledge of Weber, but surely you can adjust the float height or needle height, no? Then perhaps there's a separate screw adjuster for trimming the mixture?
What happens if you unscrew the mixture screw? Better or worse?!