hia, I have a timing problem..if I set to the manual or what people do on here,i have a van not fully wanting to rev ( I know they don't) but if I move timing anti clockwise a little he runs fab really good pulls through all gears the lot......but he wont turn over to start ( real slow and wont start, like a flat battery)... turn back that little bit it spins like the clappers and starts, but back to the bad running things vibrate a bit that sort of thing...once started I turn anti clock a bit and we're back to good running ..any ideas please.. and its not the starter / bush or the battery..ive owned him 3 years and run like this but now im fed up with this start routine..when set to run good the tickover is fine but it is with the crap timing :? thanks