I have a 97 gti the problem started couple weeks ago.it wouldnt take off at all just bogged.took it to trust worthy dealer and he said they cleaned the carb and it was all gunked up guess thats what i get for not putting stabilizer in fuel.but it seemed to run good afterwards.but now it hesitates alot before it takes off and it only does 35 mph on smooth river.I swear it use to do about 48.If any one could help me or has any ideas i would gladly appreciate it.