2010 721 with new 250 SHO need some help

[bustingbass]

Hi guys I just repowered my 721 with a brand-new 250 Sho.i propped it with the 25 fury from my old 250 X's.i know a few guys running the sho with the fury prop but they are on basscats. I have started the break in period and I'm not happy with the way it is running. I've tried running at all different heights and trim and this thing is just to hard to drive. My max rpm is also only 5300 ish at 73mph. These numbers just don't mix. I was told to prop it to run 5900 to 6000 rpm. Not the numbers I was hoping to see. Anyone running a fury on this set up? I have a 10 inch atlas hydro jack as well. Any info would be great. Thx

[kry29]

On a Phoenix the fury and sho do not mix. You need a 25 t1 or a 26 t1. I run a 25 personally. And you really need to be able to get up to 6k. Bogging that motor down is not good for seating the rings. Good news is you should be able to seek your fury pretty quick. Bad news is it might be hard to find a t1 last I checked. You can also run a worked 26 tempest. I have one of those too but it's not quite as good as the t1

[DREWTICK]

I also responded to bustingbass about this on the yamaha forum, same suggestion, there just isnt going to be a setup that will make those fury's work right. that SHO needs to run high and the Fury's want to run deep, the only way I found to get one to run right was to drop to a 24p and add extra cup, then it will run as long as you are wide open, slow down and it will porpoise. there are some T2s becoming available at dealers but they are not cheep.

[DREWTICK]

after reading your other post on the yamaha forum It reminded me, you say you are only turning 5300, is that the Phoenix Tach? if so its wrong. you have to change the dip-switches for a yamaha if you haven't already that. the Mercs are set different. its not going to make that fury work but at least the speed vs RPMs will make more sense.

[bustingbass]

That is the phoenix tach... how off would it be ? I thought 5300 at 73 mph seemed off. The boat should run 3-4 mph quicker than that. I just want to make sure I am getting my rpms to where they should be . Especially for break in. This thing is crazy hard to drive right now. Clinching my butt cheeks at WOT lol. My xs was one hander at 77 mph . I looked around and there is no used T1s around . Grrr

[Stratos21XL]

after reading your other post on the yamaha forum It reminded me, you say you are only turning 5300, is that the Phoenix Tach? if so its wrong. you have to change the dip-switches for a yamaha if you haven't already that. the Mercs are set different. its not going to make that fury work but at least the speed vs RPMs will make more sense.

Very good point about the tach dip switches!!!! Totally missed that when trying to help him out on the Yamaha forum. Great catch! I think a tempest would run better until he could find a T-1...I have a spare T-1 but its a 27 pitch, if he was closer I would gladly let him try it out.

[kry29]

A tempest will run better than a fury but it will need some work.

[DREWTICK]

H
Here are the settings For the SHO
Maybe somone who's tach was set wrong can chime in with how much it was off

[Liquid Bill]

I have a 25 fury on my 2016 250 SHO. I run it with all the holes plugged and it comes out of the hole crazy fast. My top speed so far has been 76.5 running the atlas at 17 with engine mounted on second hole. Not the 78-80 that some people are getting but the T1s are hard to find and kind of expensive. I will get a T1 just not worth it right now. I captain for my sons high school fishing tournaments and with me and two 17 yr olds full livewell s and 3/4 tank of gas in the summer and I am seeing 72 and some change fairly regularly. The Fury works just might not be as good as the T1. The Yamaha likes trim more so than the Mercury does. I run my trim at 3/4 to full trim to get the high end. I also haven't seen over 5800 rpm yet so I would like to get 6000 at some point i think that will give me that little extra.

[Liquid Bill]

Hi guys I just repowered my 721 with a brand-new 250 Sho.i propped it with the 25 fury from my old 250 X's.i know a few guys running the sho with the fury prop but they are on basscats. I have started the break in period and I'm not happy with the way it is running. I've tried running at all different heights and trim and this thing is just to hard to drive. My max rpm is also only 5300 ish at 73mph. These numbers just don't mix. I was told to prop it to run 5900 to 6000 rpm. Not the numbers I was hoping to see. Anyone running a fury on this set up? I have a 10 inch atlas hydro jack as well. Any info would be great. Thx

see above reply also make sure that your trim gauge is zeroed out or close to it so you can get an Acurate gauge of where you are.

[bustingbass]

Thank you . Ill take a look in the am to see where I'm set. My holes on the fury aren't fully plugged as I couldn't get them on time. I did put vent plugs in that had holes to close them up a bit. I still had really good hole shot . Not sure if them not being fully plugged would make a difference on the top end . There are a couple T1 25p around my area for sale. Seems like most guys are running the 26 though. how do 4 blades run on these things?

[Fidgetcranker]

25/26p FXP prop works well. Easy to steer.

[Stratos21XL]

Just saw this on the props for sale board...no clue what shape they are in but they wont last long.

http://www.bbcboards.net/showthread.php?t=824124

[bustingbass]

Yup gone already . I found a T1 25p locally for 350. Something tells me it may be a bit small though

[kry29]

Unless your running pretty light it shouldn't be small and if it is it shouldn't be by much. Might need marks touch to get you right where you want to be.

[DREWTICK]

Yup gone already . I found a T1 25p locally for 350. Something tells me it may be a bit small though

. if you but it and dont like it I will trade you my 26 FXP if its at least a 9.0

[bustingbass]

Ok thanks will let u know. Im putting 12ft talons on and have 4 31 series so I would say I run heavy

[kry29]

I think a 25 will be fine. Worst case it will need a little more bite for a few hundred rpms.

[bustingbass]

H
Here are the settings For the SHO
Maybe somone who's tach was set wrong can chime in with how much it was off

I just pulled out the dash and my rpm gauge is set to Yamaha according to this picture. Not sure what that says for my low rpm

[Stratos21XL]

If you are running AGMs and are planning to add poles or talons I think the 25 T-1 will be a good prop. I am on my second boat with a SHO and they have to get some hours on them before they loosen up. My first SHO didnt really come alive until it had about 50 hours on it.