I have a 1989 Rinker with a 4.3 liter (262 CID) Mercruiser. The motor starts and idles fine. Around 4000 rpm it has some hesitation. If you push the throttle up it then speeds up fine. I have changed the fuel filter. The carb that is on the motor is a mercarb 2 barrel with the number 33049565 stamped on the side. I am wondering what the correct rebuild kit to purchase is? Is the Sierra 18-7098 the correct kit?