2004 Skeeter tzx 200 help

[rcbutler909]

Hello guys
i have 2004 tzx 200. Repowered with a 2000 Johnson 225ho.
where should I start on motor height , prop to pad. Boat has manual slide master
12” jack plate.

[AndrewM-Fishing]

I'd start at 4.25" ptp and work up from there. I repowered my 98zx202c with the same motor this season. The Jonny/rudes like to run a little deeper than yam/merc.

[Finlander]

That’s a lot of go for that TZX. About 25 more to my recollection. That motor debuted in 1993 and I ran the Rude XP followed by a 95 Vindicator. Very strong motor and will easily push that little bug to upper 70’s. Since you have the surplus power I would run a 4 blade. What prop/pitch do your currently have?

[rcbutler909]

Currently running the renegade 25p

[rcbutler909]

At 3.5ptp I’m getting 66mph
water pressure high at 25+
This is 1 person, 3/4 tank gas

so you saying go down to 4.25” below pad ?

[rcbutler909]

Forgot to add Rpms at 5400-5500

[Finlander]

You are right at the wall for a 25 Renegade. Getting 5% slip at WOT is pretty good. You need a 26 Tempest plus or Raker clone. I am thinking these will give you 2-300 more RPM’s and the bigger pitch will move you along faster. Maybe low 70’s at 5800 RPMs and 5-7% slip. This would be optimum IMO

[rcbutler909]

you dont think coming up on the plate would get the extra rpm's ?

[Finlander]

Absolutely! You can come up quite a bit in fact. Just saying, you have a good prop. It’s delivering solid performance for 5500. Expect approximately 1 mph for each 100 rpm gained. Come up approximately 1” and see what your water pressure says. Then repeat in 1/4” increments. It’s a pain in the a$$ but the only way to dial in a fixed plate. The higher you go the more like to have excessive torque or bite issues in turns. All subjective. Suggest running it a long while at plus 1 and get a feel for the OAL performance before proceeding to the next 1/4”. Once you lose water pressure back it up 1/4” or back to the best OAL feel.

[rcbutler909]

I’ll be going out this weekend to test. Fuel pump diaphragm busted and to deal with it this week.
any suggestions to replace fuel pump. Can a inline 4-5 psi fuel pump be used ? Really don’t want to spend $500 to replace the vro pump

[rcbutler909]

I finally got some updates and would like some input please. I got the Johnny 225 HO checked out and its compression and all is good. Seems to run better with a lower prop to pad. I reduced speed when i start going up.

Here's what I got: 2004 Skeeter tzx200, 2000 Johnny 225hp HO (carbs) , 12" slidemaster jackplate, original 26P Raker Prop (no work done to it yet) 4.25prop to pad, 5800-5900 RPM, both tanks 1/2 full, by myself 220lb = top speed of 66-67 mpg gps
If I get the prop worked, what ballpark speed should this boat run ? At 5000 rpm I'm cruising at 62. at 5800-5900 I'm at 66-67 ish so I'm slipping pretty good on higher rpm range ?

[rcbutler909]

You are right at the wall for a 25 Renegade. Getting 5% slip at WOT is pretty good. You need a 26 Tempest plus or Raker clone. I am thinking these will give you 2-300 more RPM’s and the bigger pitch will move you along faster. Maybe low 70’s at 5800 RPMs and 5-7% slip. This would be optimum IMO

I finally got some updates and would like some input please. I got the Johnny 225 HO checked out and its compression and all is good. Seems to run better with a lower prop to pad. I reduced speed when i start going up.

Here's what I got: 2004 Skeeter tzx200, 2000 Johnny 225hp HO (carbs) , 12" slidemaster jackplate, original 24P Raker Prop (no work done to it yet) 4.25prop to pad, 5800-5900 RPM, both tanks 1/2 full, by myself 220lb = top speed of 66-67 mpg gps
If I get the prop worked, what ballpark speed should this boat run ? At 5000 rpm I'm cruising at 62. at 5800-5900 I'm at 66-67 ish so I'm slipping pretty good on higher rpm range ?

[rcbutler909]

new power pack and new stator installed. raised ptp and settled on the following:

Johnny 225 HO w/ carbs
1.86 gear ratio
Raker 26 (unworked )
2.5 below pad
5700-5800 RPM
69.5 gps top speed
1/2 tank gas
25+ water pressure

not sure if I can get any more from the setup

[pmgoffjr]

I've never seen a raker that didn't need work. Not once not ever.

[rcbutler909]

Thanks for response. I know you’re very knowledgeable
and I greatly appreciate your insight. How much of a difference
In a Johnny 1.86 gear ratio to Yammie 1.75 gear ratio when looking
at top end ?

[rcbutler909]

Thanks for response. I know you’re very knowledgeable
and I greatly appreciate your insight. How much of a difference
In a Johnny 1.86 gear ratio to Yammie 1.75 gear ratio when looking
at top end ?

[pmgoffjr]

If you're propped correct, there shouldn't be any difference.
The theory is, if you're running a lower gear ratio, you can run a higher pitch prop, if they both are at 10% slip, the larger prop is a bit faster, but that's a theory.

[rcbutler909]

With you vast knowledge, what is the real horsepower of the Johnny 225 HO ?

[pmgoffjr]

My vast knowledge is void of Johnrude details. I know it's a strong motor, but how strong? Dunno, let's see what kind of prop you can twist.

[rcbutler909]

all the old info I can find on zx 200 skeeters are posted with 200 hp VMAX SHO 4.2 liter yamaha motors.
the performance bulletin shows at 5750 rpm top speed was 67.5 with a 25 pitch prop (15 1/8" diameter )

Im trying to figure out what best performance to expect if setup right with
the Johnny if its giving at least 225 hp. the Johnny is a 3 liter carbed 2 stroke
the testing options were the roughtly the same with weight, fuel etc