prop size for 200 ocea npro

redfish1940

Petty Officer 3rd Class
Joined
Jun 20, 2009
Messages
76
I have a 200 johnson ocean pro on a 21 ft hydra sport that has the wrong size prop on it. rpms are to high .does anybody have any Idea what size I should use? there is a 15 1/2 x15 pitch on it now
Thanks
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: prop size for 200 ocea npro

What model HS? What kind of rpm do you get now? Is the 15 in good shape? I would think a 15 pitch is a bit low and you should be better with something with a little more pitch.
 

junior1113

Senior Chief Petty Officer
Joined
Jan 29, 2009
Messages
763
Re: prop size for 200 ocea npro

i have a 93' 21' hydrasprt cc with a 93 200 ocean pro (aviator pic). i'm running a ss turbo ultima 4x14,.25x17p 48mph @5900 rpms. had a ss 3x14.5x19p ran 46 mph @ 5650 rpms. have tried many props the 4 blade is the way to go with these hulls. better hole shot, reverse, rough water power. can stay on plane at lower speeds. also fuel economy is noticably better. ps i had to work on engine hieght to get best performance. these are great boats and motors whatever you do try to keep wot rpms between 5800-6000 to ensure long engine life. good luck.
 

redfish1940

Petty Officer 3rd Class
Joined
Jun 20, 2009
Messages
76
Re: prop size for 200 ocea npro

Its a J200VXSIF 2001
I think someone swapped props when I bought it . I wet tested it and it RPMs went to 7500 and I didn't open it all the way up I new that was not right. I buy and fix boats to resell .for a hobby so I want everythg right. somebody might have the same boat and motor. and i could try that.

Thanks
 

junior1113

Senior Chief Petty Officer
Joined
Jan 29, 2009
Messages
763
Re: prop size for 200 ocea npro

there is a rev limiter that will only let it rev 6700 or 6200 depending on pack. so i would think the tack is off. what is wot speed?
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: prop size for 200 ocea npro

Ditto, the tach is off. Make sure it's set on position 6. Even if you by-pass the limiter that stator gives up at about 7100-7200.
 

redfish1940

Petty Officer 3rd Class
Joined
Jun 20, 2009
Messages
76
Re: prop size for 200 ocea npro

I emaild hydro sports tec, support. he got right back to me and said it should have came with a 15 x17 aluminum prop.Mine has a 15 1/2x 15
Also said to have the tack adjusted.
I looked on the back of my tack I cant see anything to adjust to 6. just electral connections.
thanks everybody
 

junior1113

Senior Chief Petty Officer
Joined
Jan 29, 2009
Messages
763
Re: prop size for 200 ocea npro

Still Think You Would Appreciate A 4 Blade 17 Pitch With That Setup.
 

redfish1940

Petty Officer 3rd Class
Joined
Jun 20, 2009
Messages
76
Re: prop size for 200 ocea npro

Im will try to find one on craigslist or somewere used. a new one probabley cost more 6 packs than i want to spend
thanks again
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: prop size for 200 ocea npro

If your tach doesn't have adjustments then it's probably not a 2 stroke outboard tach. Don't spend any $$ on a prop until you get the correct tach installed.
 

redfish1940

Petty Officer 3rd Class
Joined
Jun 20, 2009
Messages
76
Re: prop size for 200 ocea npro

Im pretty sure Its originial tack. Im going to look again and see if there is anyway to adjust it.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: prop size for 200 ocea npro

Originial or not it could be the wrong type regardless. OMC owned HS back in the early 90s and they still mounted trim tabs incorrectly. Just because a "factory" installed something doesn't guarantee it's right.
 
Top