CONTINUOUSWAVE

I finally purchased a new TOHATSU 30-HP short-shaft engine with power tilt-trim and electric start [to re-power my c.1970 SPORT 13]. In the process I moved the boat battery to the port side just behind the middle bench seat to shift weight forward and counteract my weight at the helm console. [The r...

Thanks for all the comments. I am certain the boat is a [ALWAYS USE FOUR DIGITS FOR YEAR] SPORT [ALWAYS INCLUDE THE MODEL LENGTH DESIGNATOR] and the engine is a Yamaha 30 HP short shaft. No modifications were ever done to the transom. A Mercury and Tohatsu dealer will mount the 25-HP [15-inch or] sh...

Q1: should I re-power my 1974 SPORT [unspecified length] with a short-shaft engine, or with a 20-inch shaft engine combined with an KOSKIP transom mount? Q2: among short shaft engines from Mercury and Tohatsu of 25 or 30-HP, or 20-inch-shaft engines from Suzuki, Tohatsu, or Mercury of 30-HP (and mou...

Q1: what engine should be used to re-power [a c.1970 SPORT 13]? BACKSTORY I may use a new Mercury 30-HP or 40-HP engine to re-power a c.1970 SPORT 13. The weight of the Mercury 30-HP engine is close to the weight of the Yamaha two-stroke-power-cycle 30-HP engine now on the c.1970 SPORT 13. I will us...