If you have a 34 , you can take it to a carburetor shop or speed shop that works on carburetors and they can drill it to the right bar size if you know the size of the 35 jet. when you get that done and on the engine. Turn the idle screw all the way in gently , then open it up 3/4 turns ( no more than that ) try and start the engine. sense the engine has been sitting use a small amount of ether ( small amount not drown it ) it should turn over a few times and get the fuel flowing and maybe run. now that it is running , set the idle screw at full throttle (RPM of that engine , Not full blast ) by opening the throttle valve ( speed control ) bring the engine back to idle and reset the idle screw so it has good low idle and not die when you go into gear. The jet in the 34 may work out well ,you just have to play with it and see. You may not have high RPM range and watch that it doesn't run lean, ( over heat under normal operating conditions )