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herbmozo
02-25-2016, 10:43 AM
Hi, just need some help please.
I have a 2004 218wac with a 225hp Yamaha 4 stroke on the back.
Just curious as to the best engine height and propeller size for this combo.
I read on THT a thread that a guy was selling one had a jacking plate to get the engine high enough.
Thanks Herbie

Fish'nFool
02-25-2016, 01:45 PM
Read this post from Ken at PropGods. Very good information regarding engine height.

http://www.veradoclub.com/index.php?topic=65.0


What makes you think your current propeller is not sufficient?

herbmozo
02-26-2016, 02:06 AM
Read this post from Ken at PropGods. Very good information regarding engine height.

http://www.veradoclub.com/index.php?topic=65.0


What makes you think your current propeller is not sufficient?


The boat had a 150hp prior and i upgraded to a 225hp.
The prop is a 15 x 17p and its revving to 6100+ fully loaded and only getting 21knots @ 4000rpm.
Would be good to hear from someone who has the same boat setup.
The engine may need to go up another hole too.
There is a bulletin :
http://yamahaoutboards.com/sites/default/files/bulletins/bulletin_otb_4StrokePerf_HPV6_225hp_SLF-218WA-F225TXRC.pdf

Team Ruby
02-26-2016, 02:48 AM
Please note that the Yamaha Performance Bulletin gives the speed in MPH and you're using knots. When you convert 21 knots to mph you're slightly over 24 mph.

herbmozo
02-26-2016, 05:25 AM
Please note that the Yamaha Performance Bulletin gives the speed in MPH and you're using knots. When you convert 21 knots to mph you're slightly over 24 mph.

Yeah i know but it definately lacked performance when top speed was about 32 knots.
the motor is still a touch buried too.

Fish'nFool
02-26-2016, 12:38 PM
Nobody on here that I know of has this set up.

Looks like you took the prop off the 150 and put it on the 225. You should probably be spinning a 21.

Go to Prop God's website/forum and Ken will advise on what size prop you should be looking at.

herbmozo
02-27-2016, 07:52 AM
Nobody on here that I know of has this set up.

Looks like you took the prop off the 150 and put it on the 225. You should probably be spinning a 21.

Go to Prop God's website/forum and Ken will advise on what size prop you should be looking at.

Hi Chris,
The 150hp had a 17p solas 4 blade.
I am going to try a Yamaha 19p and also a Merc Mirage plus 19p too.
Most times i fish i am loaded so will prop for that.
I will email Ken once i have ran it with the 19p and see what he recommends
Thanks everyone for your help this far.

vwfam2000
03-06-2016, 12:43 PM
I struggled to make that 218WAC to act accordingly with at V6 heavy 4-stroke. Now that they have the I4 200. That would be perfect for that boat. You really need to get as much weight away from that transom as you can. battery relocation etc... I am the one that added the jack plate. Boat just never ran the way I hoped it would.

vwfam2000
03-06-2016, 12:45 PM
I struggled to make that 218WAC to act accordingly with at V6 heavy 4-stroke. Now that they have the I4 200. That would be perfect for that boat. You really need to get as much weight away from that transom as you can. battery relocation etc... I am the one that added the jack plate. Boat just never ran the way I hoped it would.

Ken is the one that helped me to prop this setup as well. Super helpful guy

optimist
03-06-2016, 03:21 PM
I didn't think the 2004 218 was rated for 225 ? I also have a 2004 218 ( CC, not the WAC ) , and I seem to remember that the sales rep told me my 218 was only rated for 200 at the time. Maybe the WAC was rated higher.....
Also, are you up to speed on the issue Yamaha had with the 225 from that time period ? If you are not, you need to check into it asap, or else you could have some serious mechanical issues coming up. My buddy has a 2003 Sailfish with the 225 , and was not aware of the problem until it was too late- very expensive repairs needed. I think it was only the 225's from 2003-2005 , but am not positive about that....lots written on THT on it....

vwfam2000
03-09-2016, 12:13 AM
I have heard of the issues. The new owner can deal with that. I'm going Suzuki on my new 200's.

herbmozo
03-09-2016, 09:47 AM
I didn't think the 2004 218 was rated for 225 ? I also have a 2004 218 ( CC, not the WAC ) , and I seem to remember that the sales rep told me my 218 was only rated for 200 at the time. Maybe the WAC was rated higher.....
Also, are you up to speed on the issue Yamaha had with the 225 from that time period ? If you are not, you need to check into it asap, or else you could have some serious mechanical issues coming up. My buddy has a 2003 Sailfish with the 225 , and was not aware of the problem until it was too late- very expensive repairs needed. I think it was only the 225's from 2003-2005 , but am not positive about that....lots written on THT on it....

The engine is a 2007 so all good on the exhaust corrosion issue.