timjam

Hi , I'm searching for an engine for my DT175 project. Anything considered except rusted solid been underwater for some time jobs. I've got one of those!

Hi , I have a DT 175 79 or 80. Carb is a 2h5. the bike is a us import 2n5 frame number. It runs really flat. Was on a 100 main jet . changed the jet to 130 had a seizure. Sorted that ,still have same problem. Cut exhaust open and cleared out the pipe(it was blocked). no change , still running bad. Will run great with no air filter.have tried less restrictive filter. tried a 120 jet same issue. Bike will run great just off full throttle but on full there is no power and the same thing on half to three quarter throttle. Any ideas?