30-03-12, 12:48 AM
If it's getting starved of fuel at larger throttle openings then, since you're sure the float bowls are supplied, I can only think it's the slides failing to rise which could be due to an obstruction in the pipe supplying air to the underside of the diaphragms. Is the path from the airbox via the little gauze filter clear? (Clutching at straws here, I doubt you'd have missed that since you've had 'em to bits so many times... also it doesn't tally with the performance improving slightly when you partially blocked the airbox intake.)
I agree with Red98, once brain power has failed to diagnose the cause of the problem, eliminating suspects by substitution usually gets results. Ideally from a trusting foccer nearby who is prepared to lend his vehicle as a source of known good bits rather than by buying possibly equally duff items off eBay. :lol
TPS, CDI and carbs would be top of the swaps in my book.
I also wonder if we're following red herrings and the cause is elsewhere entirely: inlet valve timing slipped a tooth or two late perhaps? Did you check the timing as well as the clearances?
I agree with Red98, once brain power has failed to diagnose the cause of the problem, eliminating suspects by substitution usually gets results. Ideally from a trusting foccer nearby who is prepared to lend his vehicle as a source of known good bits rather than by buying possibly equally duff items off eBay. :lol
TPS, CDI and carbs would be top of the swaps in my book.
I also wonder if we're following red herrings and the cause is elsewhere entirely: inlet valve timing slipped a tooth or two late perhaps? Did you check the timing as well as the clearances?