Evinrude 115 ficht, prop.

blueboy758 · 22 February 2012, 21:04

So does anyone know the standard size prop I need (ish) then the different size I should change to for load or top speed ? ?
It's just my engine does not perform how I hear other people's ! It's on a 5.3 deep v rib.

Thanks  

Pikey Dave · 23 February 2012, 13:38

No such thing as a "standard" prop. The engines don't come supplied with a prop, you need to take advice from someone who knows( I don't) as a guesstimate I'd say a 17" viper for starters. You need to be reaching max rpm with your normal load. Max rpm for your 115 will be around 5700

GordyP · 23 February 2012, 15:00

I have a 17" Viper spare barely used if your interested.

Cheers

Gordy

blueboy758 · 23 February 2012, 21:36

Right so all that in mind, gordy anymore info on prop?? How did your engine preform with it.?? Mine seems to miss fire at anything over 4750 but as soon as I bring it down it's ok, must get it in for a good service !

Hightower · 24 February 2012, 00:22

Quote:

Originally Posted by blueboy758

Mine seems to miss fire at anything over 4750 but as soon as I bring it down it's ok, must get it in for a good service !

That don't sound good!

FYI the ideal WOT operating rev range for that engine is 5250 to 5750 RPM.

GordyP · 24 February 2012, 11:26

The pitch was to too low for my boat and I now have a pair of 19" props. From the sounds of things you need to get your engine checked over if its missfiring.