Hi All,
Hope everyone is staying safe and well. I was hoping someone could help.
For my sins I'm trying to get a Mk1 432 running which suffers from all four horseman of mechanical apocalypse (being old, british, petrol, and neglected), last running about 2 years ago after replacement contactors, would start (with a bit of difficulty) idle ok, but point blank refused to accelerate. Fast forward to the last few days, points, rotor arm and contactors cleaned, old fuel drained (complete system as best I could), new fuel chucked in, fuel system bleed (again as best I could), couple of plugs pulled and checked for spark (plugs seem ok, as does the spark), pump ticks away and seems to provide pressure, lines from the carb to the dizzy connected, disconnected, crossed and generally played about with, and today I pulled the carb off and stripped it down to check for blocked jets, varnished up floats/chambers or anything obvious but all seems normal, it seems to try and start and will occasionally catch but wont sustain and dies off again, occasional backfire and seems to try a bit harder while the throttle is being pumped but still wont run, i'm suspecting timing or ignition in some way shape or form, dizzy hasn't been removed (only split to clean everything up) it ran reasonably about 7 years ago and hasn't been messed with by anyone but me in the mean time.
For those who know the B81 (I don't, but i'm picking up bits slowly!) it appears to my slight untrained eye to have a fixed dizzy cap so unless i'm mistaken no adjustment there...
Anyone any ideas?
Thanks