I just put new coils cond.& points in this.cleaned carb. changed impeller.& lower unit lube. i got this motor last winter and just started working on it.it has set for 15 years. i just read that on these old 3hp lightwins the fuel/oil mixtyre is 24:1 becase of the type of bearings it has internally.and not 50:1 as later motors.i read this in something called Tom's tune up projects.and would like some input on it. thanks for any help you can gave. Roger.