Moving beyond frustrated. I have a 2002 GTI that I bought last fall and been having the same issue even with everything I have tried. Here is what I have done:
Compression check at 150 on both cylinders. Small block was replaced right before I bought it.
Replaced spark plugs several times
Replaced fuel filter, entire assembly so gasket and housing included
Rebuilt carb with OEM kit
Performed successful pressure check on fuel system following shop manual procedure
Replaced inlet and outlet air valves after pressure check
Replaced entire carb with new Mikuni from OSD
The only thing I haven't done is replace the fuel selector. I am about to bypass it and go out tomorrow to give it another try.
The issue is consistently the same. It starts up and takes off great, runs full speed, really smooth. When I take off the second time, it runs about half speed with WOT, then will take off at full speed a few seconds later. It progressively gets longer and longer before full speed at WOT until it will not reach full speed, but runs about half speed. I wants to stall when I give it no throttle after it has warmed up. I have noticed the speed issue is worse depending on the number of kids I am hauling at the time (worse under increased load).
Any help or direction would be appreciated. I haven't heard good things about my local dealer in Kansas City so I am trying to resolve it myself. I'm a step away from going to the dealer but the man I bought it from spent a lot there because of the same issue and they failed to resolve it for him. Thank you for your time and help!
Compression check at 150 on both cylinders. Small block was replaced right before I bought it.
Replaced spark plugs several times
Replaced fuel filter, entire assembly so gasket and housing included
Rebuilt carb with OEM kit
Performed successful pressure check on fuel system following shop manual procedure
Replaced inlet and outlet air valves after pressure check
Replaced entire carb with new Mikuni from OSD
The only thing I haven't done is replace the fuel selector. I am about to bypass it and go out tomorrow to give it another try.
The issue is consistently the same. It starts up and takes off great, runs full speed, really smooth. When I take off the second time, it runs about half speed with WOT, then will take off at full speed a few seconds later. It progressively gets longer and longer before full speed at WOT until it will not reach full speed, but runs about half speed. I wants to stall when I give it no throttle after it has warmed up. I have noticed the speed issue is worse depending on the number of kids I am hauling at the time (worse under increased load).
Any help or direction would be appreciated. I haven't heard good things about my local dealer in Kansas City so I am trying to resolve it myself. I'm a step away from going to the dealer but the man I bought it from spent a lot there because of the same issue and they failed to resolve it for him. Thank you for your time and help!