220 OceanPro Prop Pitch

Re: 220 OceanPro Prop Pitch

Unread postby fair hooker » Fri Jun 29, 2018 2:14 pm

Tubby 301

Good job at getting your RPMs up and thanks for the explanation. I think similar to you the problem with my low RPMs might be with the motor setup rather than the wrong prop.

I checked the motor mounting height and it looked correct. I looked at the throttle linkage at the motor end and the lock nut was loose. It is tempting to pull the clip out and adjust the end piece to increase wide open throttle, but that is dangerous with a new motor and my lack of understanding of what I am doing. I have not been able to find a Yamaha Service Bulletin on adjusting throttle.

I have a appointment with the local Yamaha mechanic next week to hook the motor up to the computer and generally assess anything that might be causing the low RPMs.
fair hooker
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Posts: 17
Joined: Wed Apr 19, 2017 1:45 pm
Location: Seal Rock Oregon
Name: Bob
Vessel: 2017 22 ft Ocean Pro
MMSI: 0

Re: 220 OceanPro Prop Pitch

Unread postby fair hooker » Fri Aug 10, 2018 4:18 pm

The local Yamaha mechanic said everything was fine with my 175 hp Yamaha so I pursued getting a lower pitched prop to increase my RPMs.

The dealer in Pasco (NW Marine) where I purchased the boat agreed to exchange the original Yamaha Reliance 3 blade SS prop with a diameter of 14.5 and pitch of 15 for the same prop except a pitch of 14. This increased my max RPMs from about 5500 to 5800. I am happy with that. Thank you NW Marine for exchanging the props free of charge to me!
fair hooker
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Posts: 17
Joined: Wed Apr 19, 2017 1:45 pm
Location: Seal Rock Oregon
Name: Bob
Vessel: 2017 22 ft Ocean Pro
MMSI: 0

Re: 220 OceanPro Prop Pitch

Unread postby Bullelkklr » Fri Oct 12, 2018 3:27 pm

Interesting. I have a 2015 220 HT ET OP. I don't have the 4.2L but the 3.6L Yamaha F250 on it. I have a lot of fishing equipment, downriggers, extra balls, leads for cook inlet and PWS, a heavy Davit with Electrodyne. Enough jigs to sink a smaller boat, and usually carry an extra 20 gallon poly and 3 or 4 people and 2 dogs, 7'-10" dinghy on top. So - whatever, it is heavy. I have the SDS Saltwater Yamaha prop on it in 17pitch by 15.5 diameter.

WOT rpm = 6000 going out and with 20 gals fuel it is 6100.
WOT mph = 40-42 mph depending on tide and wind/wavers etc.

My route planning used to be 2.8 mpg but now I use 2.6. I did a 300 mile run last weekend from Whittier to Lower Knight passage and then out to Hitchenbrook and back to LKP and then up into College and back to Whittier. Mostly calm seas but probably 20 miles of 3 footers. 2 guys, a couple deer, crab pots and 2700' of rope part ways, 55 extra gallons of fuel going out and 25 left in boat when we hit port on return. I averaged 2.52 mpg for the whole trip.


Before all of the "extras" I would see 3 - 3.1mpg on the gauge but I almost never see that any more. Engine has 650 hours on it. I'd say the OP is doing pretty good right where it is at.
:ngun: 2015 220 OP ET HT
250 Yammie
9.9 HT Yammie Kicker
Espar D2
Electrodyne Puller and homemade davit
Bullelkklr
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Joined: Wed May 06, 2015 12:14 pm
Location: Anchorage, Alaska
Name: Randy Moseman
Vessel Name: Reel Nauti 2.OH
Vessel: 220 OP ET HT

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