Prop Issues - 2023 - 20LSNP w Yamaha VF90LA

[Lowbid]

2023 Model 20LSNP
Yamaha VF90LA

Dealer originally gave me an aluminum K prop 14-11. WOT exceeding 6200 and cutting out
Does anybody have the same setup. If so, what prop are you running?

Thanks.

 

[Jack M]

According to the prop chart I got from my dealer. The recomended starting point is a 13 1/2 X 15 on a 20 ft with a 90 hp

 

[Potomacbassin’]

Depends on your setup - do you have twin elliptical? Express? Standard twin?

Next step down on the standard K prop appears to be a 13 5/8 x 13 so if you want to stick with a cheap K aluminum that's probably a good next prop to try. Or as Jack noted, jump past the 13 and 14 pitch and try at 15p.

You should also consider the Talon line which is a K size and comes in aluminum or SS. They're made with more blade area to better handle the greater drag of pontoons and other deep drafting boats.

 

[Jack M]

You can also try, https://propgods.com/ ask for Ken

 

[PartyBarge]

2023 Model 20LSNP
Yamaha VF90LA

Dealer originally gave me an aluminum K prop 14-11. WOT exceeding 6200 and cutting out
Does anybody have the same setup. If so, what prop are you running?

Thanks.

You are under-propped and hitting the rev limiter. Our similar rig worked well with the basic Yamie 14p 3-blade Al. However even better for most of our use is the 13p Nemesis pontoon prop 4-blade (lower cost version of the Spitfire pontoon). For pulling an inflatable with 4-5 aboard, the 12p Talon 3-blade is the best I've used, but you may not want to go that far. Your rig may hit the rev limiter with that one. Our relatively heavy R-model almost does.

PS Our motor was hitting the rev limit the basic Yamie 13p that was on the motor when we bought the pontoon. I have a basic 15p, but it runs 30+% slip and only gets worse with load.

 

[Toddk9]

i have VF115 on my 21 SLX with a Turning Point 13.5x15 4 blade aluminum . Same block as yours. I like it. Pontoon is the Express package

Turning Point Hustler - Right Hand - Aluminum Propeller - LE1/LE2-1315-4 - 4-Blade - 13.5

PartsVu

www.partsvu.com