Hi one and all,

I'm having a starting problem with my Vanagon GL 2.1 litre. When it's cold or warm, when I start it it cranks and cranks until it starts and then it will belch some black smoke from the exhaust then the van runs fine until I try to start it again. I've put in new spark plugs, cap rotor. Temp 2 sensor. 

Any help in solving the problem will be greatly appreciated.   Thank you