- Joined
- Nov 10, 2012
- Messages
- 3,154
Hi.
Bike has the stock 1967 Amal 930/7/8 concentric with 220 jets, 25 pilots, slide cut 3, needle jets 106, needles central position.
Float bowls 2 mm under the top flat.
Air way well cleaned, carb cleaner spray trough all the holes.
Bike has Pazon sure fire I.E. setted 31 degree BTDC.
Engine has all parts new: pistons, valves, guides, etc.
The bike starts first click and runs great up 2000 rpm but under has a flickers.
The spark plugs (NGK B7ES) are very full of soot, very black.
I start with air unscrewed 1,5 but it is the same with 2 turns.
What i must check?
Thank you.
Pieto
Bike has the stock 1967 Amal 930/7/8 concentric with 220 jets, 25 pilots, slide cut 3, needle jets 106, needles central position.
Float bowls 2 mm under the top flat.
Air way well cleaned, carb cleaner spray trough all the holes.
Bike has Pazon sure fire I.E. setted 31 degree BTDC.
Engine has all parts new: pistons, valves, guides, etc.
The bike starts first click and runs great up 2000 rpm but under has a flickers.
The spark plugs (NGK B7ES) are very full of soot, very black.
I start with air unscrewed 1,5 but it is the same with 2 turns.
What i must check?
Thank you.
Pieto
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