sludgemonkey
Cadet
- Joined
- May 9, 2006
- Messages
- 10
Just changed the engine on my boat from a 90Hp Yamaha with a 1375X13 propeller, to a 150HP Johnson equipped with a 1425X23 propeller. With the Yamaha i could reach 5500rpm , but i do not seem to get above 4300 with the Johnson.<br />The boat is around 2200 lbs, and I think the current propeller has a too large pitch. Idling speed is indeed high, and top speed with the Johnson is more than high enough @ 4300rpm. It seem that the engine is running comfortably at around 3400 rpm, but the speed is a little high then. Any suggestion for alternative propeller size? Is 1425X23 too big?
