Low rpm's

[sterling11]

I have a 23' Parker SE cc with a 200 yamaha four stroke I bought it used it had a 15x19 prop and only turned 4900 I then switched it to a 15x17 painted ss yamaha prop and the rpm's went up to 5300 I just recentlly tryed a 151/4x15 painted ss prop and got 6100 rpm's but it felt like it was cavitating bad or slipping. I'm trying to find the right prop and rpm range can anybody help thanks, sterling

 

[sterling11]

Re: Low rpm's

By the way I am running about 40mph with each prop

 

[waffles1]

Re: Low rpm's

The 15x17 seems to be your best bet. You want to run mid 5500's.

 

[sterling11]

Re: Low rpm's

Thanks I think thats what I'm goingt to stick to.

 

[rodbolt]

Re: Low rpm's

actually you want 5800 to 6000 at WOT with its load that day.
you were most likly toggling the revlimiter with the smaller wheel.