I've got a 389 Monobloc fitted to my A7 (27mm - 1 1/16 inlet, one off head for 1951) but it just doesn't run well up to approx. 1/3 throttle - the carb is 1 1/8 but that's all I had at the time. I've tried all the normal adjustments so now I'm looking for the correct size carb - a 27mm concentric or pre monobloc - for the bike. A normal monobloc fouls the air filter/battery tinware but the mirror image 389 fitted is okay.
Can anyone help me by selling on a suitable carb?
Cheers
