Having trouble with a new weber 32/34 dtml carb for my 1.6 golf mk2. Was running fine for a few days then it started hesitating and bunny hopping It idles fine and will run fine up to about 2000rpm then it starts to hesitate and if i lift off the accelerator it stalls. I have changed the fuel filter and the dizzy cap and cleaned with carb cleaner and no luck. The problem goes away if the choke is left open. I checked the running with air filter off and the choke is fully open all the time is this right?
choke should fully open once the engine has warmed a little yes sounds like maybe its gone out of ajustment...try playing with the mixture screw a bit , as a guide it should be roughly 1.5 turns out try it 1/4 more and so on
wind the mixture screw out anti-clockwise) (lefty-loosey) 1/4 turn then drive to test and if that doesnt work .. repeat
seems to make it better. But when it gets to 2000 revs it starts hesitating still and makes a sucking noise. If i rev it, it does after a slight delay. If i stop then it will idle but if it is held then it stalls
I think it was used but i got it from a good friend who sells lots of webers. It was running for a few days before this cropped up which is wierd.
well sinse its not new, id suggest you have it apart and carb cleaner it all....the jets can be taken out and blasted might have disturbed some filth swapping it on
Blasted through the main jets with carb cleaner and it revs cleanly now! Will take it out for a drive later but that seems to have done it. Thanks very much
