in my 1984 25 hp johnson how much oil should i use in fuel i run 50:1 now i do most or my boating in winter duck hunting , very cold water. i usualy have a heavy loaded boat , 16 foot river jon any help thanks
If your running a heavy load be sure you prop so the motor operates within its rpm range.You'll need a tach to figure out your rpm.
The tinytach is reasonable and easy to install. One for your motor is about $40 and will fit any 2cyl. 2 stroke.Could save you premature repair problems.