joewilshire
Cadet
- Joined
- Sep 18, 2011
- Messages
- 11
1973 Johnson 115 hp.
Recommended rpm's at wot...4500-5500.
I have a aluminum propeller marked K922.
I only get rpm of around 3800.
I tried to measure the prop and I think the diameter is just a bit bigger than 13".
I also tried to measure the length of one fin at 6".
Does anyone know what size the stamped numbers mean and what you would recommend to get recommended rpm's.
It's a 24 ft pontoon boat.
Thank you.
Recommended rpm's at wot...4500-5500.
I have a aluminum propeller marked K922.
I only get rpm of around 3800.
I tried to measure the prop and I think the diameter is just a bit bigger than 13".
I also tried to measure the length of one fin at 6".
Does anyone know what size the stamped numbers mean and what you would recommend to get recommended rpm's.
It's a 24 ft pontoon boat.
Thank you.