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Thread: Kaiyen has no push
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07-22-2021, 08:43 PM #11
Kaiyen has no push
Last edited by larry_arizona; 07-22-2021 at 08:50 PM.
2021 Supra SA 400
2018 Supra SA 400 (SOLD)
Michigan
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07-22-2021, 09:05 PM #12Junior Member
- Join Date
- Jul 2020
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- 8
I hear ya. We trailer so I'm not looking to add any more lead. And we don't seem to have the same issues as the initial poster with push. My family surfs fine with just the 500lbs of lead.
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07-22-2021, 09:49 PM #13Member
- Join Date
- Sep 2020
- Location
- Alberta/BC
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- 56
Do you know what the other boats are running for extra weight and as Ralphy notes if they are doing anything different speed wise etc? Just a thought might be worth picking their brains if nothing else to help figure out what they did vs stock. We ride with a light crew typically (spotter and driver max 300lbs if that but I am not asking my wife or mother what they weigh) and yes you can surf it but I think you might be suffering from less than ideal depth and light crew killing your push. Watching the wake 9 video for the mondo we just tried to replicate it as best we could, the 500 plus lbs in the bow (they used 500 but we go more as it is not all the way forward) and the extra 400lbs in the back on the floor to make up for the light crew although we do ride it with a larger crew sometimes because as larry notes more displacement the better. If I were you I would see if you can get your hands on some more weight and or people ballast and see if that helps you out, if possible try it on a deeper lake just to see how much that is impacting you. As sandm and others have noted these boats typically like more weight than stock ballast provides , not to say that you can't surf it stock but it will be harder with less push in less than perfect conditions. We don't do lead just because our launch is shallow and I don't want to have to load lead in and out every time plus we have the single axle trailer.
2021 Moomba Mondo, 500lbs of lead, wake makers bag busters
Raptor 400 1.76 15.5" x 15 prop, changing to 15.5" x 13.25 for summer of 2023
2018 Yamaha 212x (SOLD)
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07-22-2021, 09:49 PM #14
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07-22-2021, 11:28 PM #15Member
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- Aug 2018
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- 88
Sounds Like I need some lead or ballast bags for more weight and increasing my roll from -1 ish to at least -2
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07-23-2021, 10:17 AM #16Member
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- Aug 2018
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- 88
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07-23-2021, 02:00 PM #17
With our Kaiyen, we've noticed that if you try to tune for amplitude you actually get less push than setting up a nice long wave. When I surf, it's just my wife and two young kids in the boat for a generous combined weight of 200 lbs after a few breakfast tacos. We have 700 lbs of lead in the boat evenly spread throughout... so we're at ~9k combined weight all in.
We've ditched autowake and the regular footed surf setup I've been using lately is:
11mph
0% wakeplate
45% starboard surf plate (Flow 3)
100% Front / 100% Port / 90% Starboard
Sorry for the crappy video screenshot, but it's a pretty fun wave with good push:
If wife turns to the right slightly while surfing, the wave stacks! So I'm going to try adding a little more roll into the equation if I ever get a chance to fool around a bit more...
The more people I have in the boat, I start adding a bit more surf plate and bumping up the speed.2020 Kaiyen
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07-23-2021, 04:02 PM #18
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07-24-2021, 11:16 PM #19Member
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- Aug 2018
- Posts
- 88
Went out again today, had about 600lbs of people all on port side (surf side) and as far back as possible.
Manual settings: front and port rear 100%, starboard was 85%, center plate 0%, surf plate 60%. Check autowake and pitch was 8.5 and roll was -2
Turned on autowake it filled both rear bags to 100% and emptied the front to 40%. It achieved pitch 9.5 and roll to -3.5.
The auto wake I could start to get a slight feel of push but nothing to actually ride still. It seemed like at one point the boat sped up and I could see the start board plate digging in, I usually can’t see any difference when surfing from the plate being down. Does anyone have photos of the back of their Kaiyen surfing so I can see what it looks like on the side the surf plate is deployed on? I am starting to think my surf plates aren’t doing the correct thing.
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07-25-2021, 07:16 AM #20
Turn off Autowake!! If you don’t have a big crew it’s just going to make it a pain to use Autowake and get a good wave. You can worry with Autowake later on when you have a big crew more consistently or when you’ve added enough extra ballast.
I know the Max is not the same as the Kaiyen but as a general rule it takes about 5k lbs of ballast on a Max before it comes alive to make a big, strong wave with plenty of push. With the Kaiyen being a little smaller I suspect it would take just slightly less ballast to also get a bug, strong wave with plenty of push.
As mentioned, there is no replacement for displacement. You need to add some extra bags and or some lead.Last edited by haknslash; 07-25-2021 at 07:21 AM.
2019 Moomba Max "MOOMBAE"
Mods: Wakemakers upgrade + 500 lbs of lead
2016 Yamaha AR192 - sold