i cleaned gas tank, and mounted the sediment bowl which belongs to the tractor ( had elbows and was sitting on top of oil filter) and a new carb. I also put in new spark plugs and she fired up this is still a 6 volt system by the way but it didn"t seem like it had a lot of RPM what is the way i can tell if it is full throttle or if it does need to be adjusted. a sheet came with the carb of where the usual settings are for mixture and idle and so on. there was no black smoke out of exhaust and it didn"t smell gassy either. Any help would be greatly appreciated. How much throttle RPM is it supposed to have is the bottom line question and how to know how many RPM the motor is running.