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Discussion Starter · #1 ·
I've been riding standups for 40 years. I bought a Kawasaki 2011 SXR special edition a few years ago, completely stock. It had almost never been ridden.
When riding straight smooth water standing up, it tips from side to side. Not so much that it falls over but enough that its annoying. Any new standup riders are barely able to ride it because its hard for them to control it. Last summer i was riding on my knees and noticed it tipping even at low speeds. I let a 14 year old boy ride it and he asked me why it was tipping. I thought it might just be me, because ive gained a lot of weight since i road those older models. LOL
Riding 440, 550, 650 when i was younger, I never had this happen. At least I never noticed it before.
I'm assuming I need to add sponsons. Can someone please verify this? Or is there something else with the intake or prop that may be causing the problem. It seems to me that it can only be the hull design is different than the older models.
If I need to add sponsons. Which ones are recommended? This is just for recreational use.
 

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Discussion Starter · #2 ·
I installed front sponsons. It almost eliminated the problem completely. I think i should have installed them 1-2 inches further forward on the boat but its still a much more stable ride on a long run. The way i installed them was to make them almost even with the bottom of the hull, so as to make the hull a little wider. Since my weight is up to almost 235, I believe that standing up at high speed, when it starts to tip to one side as it originally did, the sponsons keep it from tipping as far as it did before. But they also kind of catch the water a bit, so you feel a slight jerk to that side. I still like that i get a more stable ride for an old fat man. LOL
 
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