All engine faults/repairs/maintenance Air-cooled white smoke

White smoke, occasional backfire

Aircooled: I have a 2litre aircooled van and its pouring white smoke out the exhaust when running. Seems to drive ok apart from occasional backfire. Had a check over weekend and compressions are between 9 and 12 so they seem ok. Timing and valves settings spot on. It starts ok too. Can anyone tell me what problem may be..please, thanks in advance.

Nev

Aircooled: SORTED...carbs flooding...sorted with new needle valves and bingo no smoke..thanks for replies...

Cheers