Correct prop for YAM 100

moonshadow · 04 February 2012, 11:35

Hi guys can anyone advise me as to the correct prop size for a Yamaha 100 Its pushing a 6 m ribeye .The numbers on the prop are y-2 19k 6e5 and its a wee bit "tired" looking.
Also reccomendations for a good on line supplier much appreciated

Nos4r2 · 04 February 2012, 11:43

Depends what revs you're making at WOT?

stew · 04 February 2012, 11:45

Wot ???

moonshadow · 04 February 2012, 11:51

Now you have me,its quite new to me and ive only been out on it twice but it think 30 knts was roughly 4000 rpm with full tank and two on board.....though i cant be sure?

Nos4r2 · 04 February 2012, 12:08

Quote:

Originally Posted by stew

Wot ???

Wide Open Throttle.

You need that figure. 4k rpm sounds way too low for WOT with a 19" pitch K series.

moonshadow · 04 February 2012, 12:12

Your right thats not WOT, its the only thing i can remember i know we were cruising comfortably at that rpm ,i think 5800 was giving 42knts that was pretty much flat out.

C2 RIBS · 04 February 2012, 12:59

Your 6m Ribeye has a 100hp Yam I think and you had the black aluminium 19"series I guess

Looking at the test results for the larger engines they have also tried Performance series, Salt Water series and relienace series with 3 or 4 blades.

I would be tempted to call Yamaha and ask their thoughts now as they have done quite a few tests and in particular in conjunction with Ribeye. That way you can tell them if you want power early or top speed. Certainly the conversations we have had with bith have meant we changed a few props over the years from the standard fit, as we needed good pick up and I was not looking for total max speed.

Once you know which prop is best suited for your boat and engine , then shop about as there are deals to be done as none of the new props are cheap and there are some good ones on sale via Ribnet which some of us have barely used but changed for reasons given above

moonshadow · 04 February 2012, 19:56

Thanks guys all i can say is that the prop is white......would like one in the next 5 days so any links to online reputible retailers are appreciated.
cheers.

Nos4r2 · 04 February 2012, 20:01

If you're after a 19" and can wait a while you'll find shipping an aluminium Michigan Wheel Match with the right hub in from the US a better prop than the white K series props.

I've been running one for the last 3 years and it beats the K series props hands down.