Yamaha Sho 225 Tune to 332HP

[Z19RangerSteve]

Hey guys-
I just had my 2017 yamaha sho 225 tuned to a 323hp. I went from 65mph WOT to 72mph. In the two times that I did that and went back down to idle, the boat was stuck in limp mode and would only idle when putting the throttle down. I had to turn off the engine, restart, and it reset everything back to normal. I never had any sort of alarm go off. Unfortunately I was not paying attention to the RPM's at the time of WOT. Will the motor go in limp mode if you go over a certain RPM? Currently running a 25pitch. If the RPM's are too high, do I need to switch props? I have zero experience with any of this....thanks in advance for any guidance.

[bgibson]

You need to know the RPM you where going when this occurred to give an accurate answer. My guess is you went over the 6200ish rpm limiter. When you get a "flash" They usually ask you if you want to keep the stock Limiter (6200), 7000 rpm, or 7500 rpm....

[Tim Kelly]

If you are using the same prop you almost bound to be over revving

[78Staff]

Hey guys-
I just had my 2017 yamaha sho 225 tuned to a 323hp. I went from 65mph WOT to 72mph. In the two times that I did that and went back down to idle, the boat was stuck in limp mode and would only idle when putting the throttle down. I had to turn off the engine, restart, and it reset everything back to normal. I never had any sort of alarm go off. Unfortunately I was not paying attention to the RPM's at the time of WOT. Will the motor go in limp mode if you go over a certain RPM? Currently running a 25pitch. If the RPM's are too high, do I need to switch props? I have zero experience with any of this....thanks in advance for any guidance.

I'm Jellin Have wanted to do it to my '16 for a while now... would probably go with PCM tune only, and stick with 6200 rpm limit. Hope you get it sorted out.