by bulls in transit » Fri Apr 01, 2016 6:22 pm
Had similar problem with mine(German V4),after going through everything,spark,fuel,etc,was at wits end,had a garage look,they readjusted valve clearances and it started and ran,problem was initially clearances to get going BUT after a very short time problem reoccured,this time looked into it myself( with advice from forum),after going through everything again it was a valve seat problem(engine at time had done16/17kkm).
As I was advised(well)have you compression tested the engine?