i went up maplegrove for their swap meet i picked up a 650 double pump for 80 bucks . i have another one at home that was all but brand new cept i broke one of the ears off so i figure ill use the one i bought for parts concidering a new base plate would cost over a hundred dollars . were u hook the throttle cable the ear wobbles on the shaft. so i changed shafts also. both carbs have the same number 4777-2 after installing the carb i cant get it to idle every time i accelarate and let off it wont drop below 1500 unless i punch it or put springs on it so heavy you get charlie horses !!!has anyone ran in to this before what should i look for the only thing i can think is to pull the carb loosen the butterflys push the lever as tight as i can and reset the butterflys buy the way i installed the crank gear straight up considering thats were the cam was degreed at just looking for more tork thats all