Had several of these in the past. Didn’t matter what I did before it was always 70-73. Now I can’t get above 67 to save my life. Could the new props they came out with be causing it. Help!
Had several of these in the past. Didn’t matter what I did before it was always 70-73. Now I can’t get above 67 to save my life. Could the new props they came out with be causing it. Help!
Last edited by wiget10; 01-13-2019 at 11:44 AM.
Do you know your rpms right now?
Last edited by Randy T; 01-13-2019 at 12:19 PM.
Rpms are way high. Highest I’ve ever had was 56-5800 now like 6200. As I how this that’s gotta be my problem. 25 pitch now, should switch to 26?
I am assuming you meant 67 not 77? I would say you would be correct to expect 70-73mph with a modest load(that's what my 2015 zx250 gets). I know that the newer prop (25 T-2) that replaced the (25 T-1) is known to be off and not as precise as the t-1 so you may need to send it to Mark Croxton for him to get it right. Other then that you could look for a T-1 or a Mercury Tempest with a little added cup is known to be a good substitute.
26p wont solve your problems. 25pT1 is the correct prop for that combo. You potentially have a lack of cup, or your blades are closer to a 24p. Again this is based on the fact that your RPM readings are correct.Originally Posted by wiget10
Lower your jackplate 3 dots and see how much speed you pick up and how much rpms drop
To be honest it’s really closer to 65. Need to get it worked . Where is marks contact
Mark's number at his shop. 1-317-398-9294
2018 Skeeter ZX 250
2018 Yamaha SHO 250
Minn Kota 112 Ultrex Link
Lowrance Elite Ti 12 and Elite Ti 9
Dual PP Pro Series II
Atlas Hydraulic JP
The T2 is a little slower than the t1...mine was very close...I'm actually getting my rpms but my speed is around 71...where as my t1 ran the same rpms but was up around 74...
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Not a expert but my zx225 was very similar always a 71-72 mph boat. I couldnt get it past 65 and was spinning super high rpms ended up being a bent prop shaft. I dont remember hitting anything and no damage to the prop but 2 VERY small nicks that I didn't have fixed, you could just barley see it when you spun the prop by hand. But it was the problem and now I am back running in the low 70s. Worth looking at in my opinion.
have a 2019 zx250, getting 71 loaded down with gear and 2 people.
i do have hydraulic jack plate, which i believe is key. standard stock prop.
My 2017 ZX 250 came with a 25p T1 prop. After about 5 months the T1 prop busted and yamaha replaced with the T2. I have tried several props since the T1 busted and spent hundreds of dollars having props worked. I never found one to run as well as the T1 did. I finally gave up but with T2 or similar prop you should be within the 72-73mph range
2017 Skeeter ZX 250
Pick up a used Tempest and get it worked. Should get all your speed back.
My 2015 runs 73 - 74
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