Have a boat ca 300 kg. and a Johnson 85 HP 1970 105 kg.<br />I want to buy a new prop but can´t figure the size<br />to choose! the old one is 13,3/4 X 15 can anyone give me a hint ! (I am rather new to boating)
What are you trying to achieve by replacing the prop?<br />Are you just replacing an old broken prop?<br />Increase holeshot?<br />Increase top speed?<br />What is the boat used for?<br />SLower cruising?<br />Fishing, trolling?<br />Waterskiing?<br /><br />How does the current prop work?<br />What are the engine rpm's when underway at full throttle?
hello Roscoe, I havent been running the boat on water yet, just bought it this winter, the old prop is useable, but not for long,I would like to use it for waterskiing mostly thanks for your questions !
