Hello all! I am fairly new to the world of motorcycles. Although Im not completely new to mechanics. I have spent a lot of time on Trucks, Tractors and ATV's.
I have a Yamaha 1997 DT 175 that I am working on as a hobby. Its a pretty old machine, but most of the parts seem to be in good order. After a battery change and fueled it up, I got it running. I also changed the transmission oil. It was a pretty good idle with the choke out, but it was weak or would die when I pushed in the choke If I didn't give it any throttle. After some research, I thought maybe the problem could be solved by taking out the carburetor and cleaning it. After reinstalling the carb, the motorcycle wants to fly, literally. After kickstarting it, It immediately revs up to 7-8000 RPM's. I cant turn on the motorcycle for more than a few seconds before it redlines. Obviously, I shut it off at that point. I don't want to damage anything. If you push in the choke, The RPMs go even higher.
After more research, I thought it might be a air leak. I replaced the hose clamps and re-adjusted the hoses. I have also adjusted the idle screw and air/fuel screw and still no cigar. I haven't messed with the throttle wires or anything throttle related at all.
Any help at all is greatly helpful! Thanks.