Cant get Rpms WOT Seems like the motor isn't winding all the way out like it hits a wall ? Tried everything from props to motor height nothing seems to help as far as speed ? Running 87 octane so far would 89 octane make much difference ? Seems like the motor isn't opening up all the way to get max performance ? Thanks in advance !
It's meant to run on 87. Not knowing what your prop and rpms are, but you could check your hotfoot, throttle cable and the cam at motor end of cable to be sure they're adjusted properly.
2002 Skeeter ZX200
2018 200SHO
24 SHO Prop 5700 is max on rpms ?
Depends on your boat and load. The standard prop shipped with a 200ZX Skeeter with that motor is 23" SHO prop (not 24"). I have a 24" FXP prop on mine and it takes a good distance to reach 5900 rpm. I should rather have a 23".
2002 Skeeter ZX200
2018 200SHO
Sounds to me like the hotfoot if it has 1 or just the throttle cable isn't properly set. Just my 2cents
I believe you have too much wheel. Wouldn't hurt to check the throttle opening all the way, but 5700 with a 24" wheel makes me believe the engine is making power.
You didn't tell us what boat you have the 200 on. Could be a simple case of too much boat, not enough motor.
Assuming motor and boat match, what speed are you getting with the 24? If you go down an inch on pitch and gain 200 - 300 RPM's will you gain any speed? I'd expect you are getting 65 - 68 now. I doubt you will gain much if you go to the 23. Of course the boat might overall run better.
I'm running a 23 on my 2020 ZX200 and it's just about right.
It's meant to run on 89 octane (not 87). It is possible the engine is sensing the lower octane and retarding the timing, hence lower performance.
Last edited by printman71; 03-09-2020 at 10:32 AM.
Mine is the same way, I can not get over 5700 Rpm's. I run a 25" T-1 that is B&B on a 250 SHO. I have raised and lowered only to affect RPMs by maybe 50 RPM either way. Made sure the hot foot was opening the throttle body all the way, it was.
I did read a thread somewhere on here that people have found a wire harness un-plugged that can cause limited RPM, but I'm not sure what one or if that even makes any sense.
I'm not sure about the 225 and 250 SHO, but on the 200, there is a mark on the throttle cam that you adjust it to (not all the way until the cam hits the stop). By adjusting it too far it's possibly confusing the computer?? Like MCIPinkie, I think a 23" is the correct pitch, depending on the hull...
2002 Skeeter ZX200
2018 200SHO
Motor is on a 191 Champion single console boat 2 power poles
Check the throttle adjustment especially if you have a Hotfoot.
2018 Bass Cat Caracal
Yamaha 225 SHO
5700 with a 24p prop sounds about right.
How fast are you going?
Does hole shot suck? If it's not too bad top speed is good, this may be your setup.
My manual says 87Originally Posted by printman71
The 200 SHO only requires 87
I have the 225 running the 24p T1 and usually turn it 5900.
2018 Bass Cat Caracal
Yamaha 225 SHO
The Rev limiter on a SHO is 6400. You want to be as close to that RPM as possible.
91 allison xb2002, 96 mercury promax 225 (Sold)
99 Rocket 20DC, 2020 Yamaha V-Max 200ish SHO
yes u can turn them up that high . But the manual and what’s posted on the motor is 6000 rpms . They will last longer that way .
Without some hard numbers, we're just practicing typing.
My guess: Boat runs fast, crappy hole shot.
Can't understand why everyone wants to over prop the SHO. The 200's should have 23. The 225 and 250 - 24. Get the RPM's where they belong. Should be right around 6,000 WOT. Maybe up a little on a light paper chip hull, but not a normal boat.
If you can't get there, and the engine is making power, too much pitch. It's simple.
Boat is a rocket out of the hole ! Just seems is doesn't allow the motor to completely open up you can even hear it in the sound of the motor ?
Well, it's one of two things: Either the engine isn't making power, which I don't believe to be the problem, or you're over pitched.
Actually could be more than two, but staying simple. Is the boat trimming correctly? Do you have a hook in the hull, or a rocker, that you just can't push through. Don't discount the possibility of an inaccurate tach.
I'm assuming you have worked the jack plate and the engine is not just simply too low in the water.
If your top speed is acceptable, I'd go fishing. If not, spend some money. I doubt you will go any faster, but at least you will contributed to the economy.
This is way you set up a boat. Try something, if it doesn't work, try something else. Ain't no web page.
Last edited by MCIPinkie; 03-17-2020 at 06:59 PM. Reason: typo
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