My question is that:<br />after rebuild carbs, how tune them ?<br />My idea is to remove the air box to ensure that both carb flaps are equally and fully horizontal in WOT throttle control. <br /><br />Then i think to set carbs following with this suggestion : <br /><br />" Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.<br /><br />Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running. "<br />.... "if the engine has more than one carburetor, do not attempt to gradually adjust all of the valves/carburetors at the same time. Do one at a time until you hit the above response (die out or spit back), then go on to the next valve/carburetor"<br /><br />To do one carb at time i have to run with one plug wire shorted to ground and check rpm ???<br /><br />Thanks to all