Surf Setup - 2016 Mojo - HELP!

Has anyone tried to completely list a mojo with the auto-flow 2 system? I understand this sounds misguided but I am curious how it may affect the surf wave shape.

My first trip out with the stock 2500lbs ballast system (650lbs rear lockers, 700 hard center tank, 500lb IBS) was very lacking is wave size. I then upgraded the rear lockers to 1100lbs each and piggy-backed them to over fill into 400lb bags under the seats. Grand total weight = 4200lbs (1100lb rear lockers, 400lb under seats, 700lb center, 500 IBS). My wave looks great from the boat but lacks push the farther you get from the boat. My sweet spot is maybe ~8ft long tops. I also noticed the front part of the wave lacks a solid lip to boost airs, looks more of a rolled over mellow transition.

So far my best setup is 100% full ballast rear port, 80% starboard and full center and IBS @ 10.2 GPS speed, 50% plate, and tabs @ 45.

I have placed the wake plate and surf tabs in every position possible, adjusted speed, and even let out some ballast in the starboard side since I surf port side. Nothing seems to give me the perfect wave I am seeking. I am also running the recommend +12' water depth. My crew has been small, typically 3 passengers. Do I need more weight? Anyone else have a similar ballast setup? Don't get me wrong, the wave is very surf-able but its not the wave I have dreamed of all winter long. I am used to listing a boat until the rub rail is touching the water at surf speed but with the surf system the rub rail is still 10-12" out of the water. Any thoughts or comments are appreciated.

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Thank you for the thread. I picked up my 2016 Mojo on Friday and put it in the water on Saturday. I knew it would be a little challenging dialing in the right wake for surfing. I am confused what steps to do to get the push. have you heard anymore advice from anyone? I ordered a 1100 lb bag yesterday, but will this really fix.?

I was playing with mine over the weekend and came to dang near the same conclusion .....

I did 1100 port full, backed a little weight off starboard ... ibs/bow full ... tabs between 40 and 60% and I was going with wakeplate all the way up.

That is where I found the most push but my shape wasn't quite right and i was looking for a little more length.

I'm thinking, similar to you, it's a weight thing ... the boat doesnt look deep in the water at all and has plenty of room left to get sunk. I'm just not sure the best way to add the weight, yet.

Here is the only pic I snapped while surfing.

http://uploads.tapatalk-cdn.com/2016...b86e670c2c.jpg

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Originally Posted by KG's Supra24

I was playing with mine over the weekend and came to dang near the same conclusion .....

I did 1100 port full, backed a little weight off starboard ... ibs/bow full ... tabs between 40 and 60% and I was going with wakeplate all the way up.

That is where I found the most push but my shape wasn't quite right and i was looking for a little more length.

I'm thinking, similar to you, it's a weight thing ... the boat doesnt look deep in the water at all and has plenty of room left to get sunk. I'm just not sure the best way to add the weight, yet.

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Need one of these. 😬 http://uploads.tapatalk-cdn.com/2016...99e965d547.jpg


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1100lb rear sacs are a must in my opinion.

I have 1100s and I'm thinking a custom sac would fit much better

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Yeah KG, slap some suction cups onto the side of that brand new Mojo. You an I both know those 1100's fit the new Mojo locker like a square peg into a round hole!

Got my 2014 Mojo out on the water today for its first test run after having the manual Flow replaced by the Autoflow 2.0. I would assume that the 14's and the 16's would be somewhat similar. The 1100s actually fit really well into the rear lockers so that isn't an issue for me.

My first opinion on the wave ... completely underwhelmed as well. As said above boat is DEFINITELY not that far into the water. Not nearly as far as it used to be with my manual Flow.

Before I jump to any solid conclusions I need to spend a few more hours with it to try everything ... but here is what I tried today.

I have the 1100's in the rear lockers with a 650IBS up front. We ride goofy so I had goofy side bag at 100% full and non surf side bag at 80%. Tried it with the non surf bags at 75%, 60% even 40%. Tried with the IBS and centre tank totally full ... tried it with the IBS at 50% and with the IBS empty. Just could not get ANY PUSH out of this wave. Tried speeds from 9.8 to 10.6mph. Tried wake plate at 0/50% and 100%.

I have been riding ropeless behind my Mojo for quite some time and have no issues whatsoever keeping up with the boat ... until now. I was pumping the wave as hard as I could and I could only JUST stay with the boat. As soon as I stopped pumping I fell right back out. Even putting MAJOR front foot weight (to the point I would bury the nose) would not give me the speed I needed to keep up.

After trying for 30+ mins and all those variables we decided to drop the surf setting from 5 LED bars down to 4 and then 3. 3 seemed to be the best. The wave had a little more push but definitely not enough to ride comfortably in the pocket without a rope for any extended period of time.

I am more than choked right now because after this "upgrade" I am short $6K and have a boat that I can't surf behind.

I would decrease the percentage on the auto flow lower percentages equal taller wave thus more push the higher gives less or this what I found on our mojo. The tabs actually lift the non surf side acting like you have more ballast.

Oh really? So when all 5 LEDS are lit up that means a longer more mellow wave ... and just 1 LED would be steep and short?

Seems counter intuitive to me but I am Canadian :confused: ;)

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Originally Posted by blackcup

Oh really? So when all 5 LEDS are lit up that means a longer more mellow wave ... and just 1 LED would be steep and short?

Seems counter intuitive to me but I am Canadian :confused: ;)

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This is correct.

I agree that it's counterintuitive, but then again, I havent found anything explaining how the system works.

I assumed it work as follows (let's assume setting is at 100%):

- flip switch to port side for regular wave
- tab would deploy 100%
- this would result in the port side being "pulled" down more
- result would be a tall wave with good push

Pretty much everything I assumed is innacurate.

If I want to surf regular side, I need to throw the switch to the starboard side. If I want a tall wave, I need to reduce the %.

If anyone has insight as to how the system works, I'm all ears and appreciate it!

I'm in the same boat with my 16 mojo have the 1100s in the rear filled the front all the way plus an extra 500 in the front on the floor and still no push. So far my 05 lsv is 10 times better. Goofy is ok regular is bad

I'm a new wakeboat owner and have had my 2016 mojo outa grand total of 2 times. But from what I'm learning I fill the the side being surfed full, front full, and opposite rear about 75% with tab on the same side 75%to 100% and speed at about 11mph 11.5mph. So as the boarder gets up and going I flip the surf switch to the side they are on and the tab on their opposite side deploys (this is with four adults sitting on the side of the boat being surfed) and can feel the boat really lean then and the kick up. Wake plate is at 25%

I'm having the same issues and have spoken to some other Mojo owners on my lake and we're all having the same experience. I've got a '15 with 1100's in the rear and I installed the '16 larger wake plates earlier this season hoping it would help, but it didn't do anything. The only time I've been able to surf behind this boat is when we had 12 people on the boat, unfortunately we typically have 3-4 guys. Last weekend I went out with 3 other guys that own wakeboard boats who were there to help me finally get it dialed in - we spent 2-3 hours of trying ever variation of wake plate settings, ballast, speed, etc. At the end of it all my buddy told me my boat must broken and I need to call the dealer because we couldn't get a decent wave. It's been super frustrating to say the least. I'm going to try to add the stock 650 bag to the locker in front of the 1100 to see if that helps but if that doesn't work I'll be trading it in on a different make boat. I surf my friend's Nautiques, Malibus, and Supras and none of them have any issues throwing a wave at will without having to spend thousands of dollars on upgrades and hours messing with settings. I know these are more expensive boats, but they're selling the Mojo as surf-ready and my experience has been anything but. Hate to be a downer but if you can't tell i'm really pissed off and venting a little!!!

i got a 16 mojo and have a great wave. have the 650 rear bags, fill them all the way up, plus full center and IBS. wakeplate all the way up. we have a decent wave with only 2-3 people on the boat. the more people the better the wave gets. that's why i just ordered 1100's.

Finally got a full crew of 11 people, all bags full (4200lb), wake plate all the way up, surf tab at 55, and speed at 10.6mph. The wave looks massive but is shorter (in length) than desired. I adjusted the wake plate down to get a longer wave but the push was greatly reduced. Very surfable but lacked a solid defined lip in the front of the wave to boost airs. The goofy side looked good as well with the surf tab setting at 100% but I did not ride it personally. The fully loaded boat struggled to get on plane with the 15x13 prop, thinking about upgrading to a 14.5x12.

Attachment 24266

I haven't had a chance to play with setups much but we have been out a few times now. I'm getting a decent wave with settings similar to others. There are a few things I'm wanting to try next time out, wondering if anyone already has ....

1. Drop weight from the bow (maybe no ibs) so the rear is sunk further. Then try to get the length back with the plate.
2. Add weight to the center of the boat (instead of surf side). I'm thinking a 750 in the floor might make a difference, again with goal of sinking the overall rear.

This is what most of us seem to be working with .... surf full, bow full, non-surf 75'ish%, wake plate up, surf tab between 40-60%. It seems I end up higher on the starboard side than port. Pic of goofy/starboard wave ...

http://uploads.tapatalk-cdn.com/2016...747e86ed6a.jpg

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Originally Posted by Ruzzbutz

I'm having the same issues and have spoken to some other Mojo owners on my lake and we're all having the same experience. I've got a '15 with 1100's in the rear and I installed the '16 larger wake plates earlier this season hoping it would help, but it didn't do anything. The only time I've been able to surf behind this boat is when we had 12 people on the boat, unfortunately we typically have 3-4 guys. Last weekend I went out with 3 other guys that own wakeboard boats who were there to help me finally get it dialed in - we spent 2-3 hours of trying ever variation of wake plate settings, ballast, speed, etc. At the end of it all my buddy told me my boat must broken and I need to call the dealer because we couldn't get a decent wave. It's been super frustrating to say the least. I'm going to try to add the stock 650 bag to the locker in front of the 1100 to see if that helps but if that doesn't work I'll be trading it in on a different make boat. I surf my friend's Nautiques, Malibus, and Supras and none of them have any issues throwing a wave at will without having to spend thousands of dollars on upgrades and hours messing with settings. I know these are more expensive boats, but they're selling the Mojo as surf-ready and my experience has been anything but. Hate to be a downer but if you can't tell i'm really pissed off and venting a little!!!

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I was/am in your same situation man. I feel your pain. I actually have a test drive in a Supreme S238 at the start of the week ... I want to see what kind of wake it throws and if its as finicky as the Mojo wave.

I was able to get an ok surf wave that took effort to stay on by putting the wakeplate all the way up and having front ballast ~50%. Still needs more weight on back. I am upgrading the rear ballast to 1100's as other people are suggesting but am worried this may not make much difference.
I wonder if this is intrinsic to the mojo hull design. Like in aerodynamics, during wind tunnel testing designers see how the shape affects air turbulence. There is no "water tunnel" testing for seeing how hulls shape a wave. Just saying.

I have heard rumors of Mastercraft working with smaller scale models of their surf hulls to determine the best shapes. If anyone knows how I can get that job let me know....

My 2016 Moomba has the same issues. Installed the 1100 lbs bags, have tried various settings per my boat dealership and from Moomba product specialist. NOTHING works..... I am going to try the 750 lb we took out of back and fill them under seat of port side to see if this creates a push. This is the most disappointing experience I have in years. as was stated above, they market the boat as surf ready and are very misleading.

Nose weight is all I can say. The last few times I've probably had 1100lbs in the nose, and that made all of the difference in terms of making the wave longer.

From my limited experience the mojo just need weight, and lots of it. Stock ballast is not an option to produce a good surf wave. Upgrading to 1100lb rear sacs is a start but she need even more. I have 400s under the seats piggy backed off my 1100s and can absolutely tell when they are not full. Be sure to fill everything 100% full. Some people are claiming 75% full opposite surf side but I have found this to negatively affect my wave. I typically cheat a passenger or two to the desired surf side and the wave is great now that I have it dialed.

But at the same time .... the wave should be easily surfable with ibs and 1100s.

It's not the ocean with a megaboard and moon push ... You gotta do a little feet work.

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On my 12 I just had to run 1100 surf side locker. 400 non surf side and 400 center, plate at half and my new doomswell neo and I was having a ball. I usually have a 325 under surf side seat and another 300 in nose but my hand pump broke. I am gonna to add more ibs but with the neo, I'm not sure I will right away. I also do not have auto or Manual flow.


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Got the wave dialed. All i did was upgrade the rear ballast to 1100's. Omg, wave has tons of push. It rides effortlessly. Even if i drift way back i am able to surf back in. I'm so happy i can cry.
Not much else in my setup.
Front IBS 0%full, wake plate all the way up, both rear ballast full and i have auto surf set for port side surfing.
Btw,i think the 1100's fill just fine.
Keep in mind, because timer is set for the 750# it'll stop pumping water at that level. Had to restart the ballast fill a couple of times before the 1100's were full. I have to go into the settings and change the fill time.
Anyway, psyched i am.

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So IBS empty but are you filling the front hard tank? Also, to what degree are you deploying the auto flow?


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FWIW, we had problems getting the wave dialed in on our 2014 LSV (900lbs rear bags, 500lbs IBS and manual flow plates), and we just COULDN'T find a surfable sweet spot. Turns out that our digital and analog speedo were ~2 MPH off when compared to GPS app, so when we were thinking we were surfing at 10.4 MPH, it was actually 12.4 and we had NO push! Not sure how common this is on Moombas, but that solved everything for us....


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Originally Posted by c h r i s

So IBS empty but are you filling the front hard tank? Also, to what degree are you deploying the auto flow?


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I surf port side. The stbd surf plate is set at 80%. IBS empty and hard tank about 80%

Thought I would chime in, finally got my '15 throwing a nice wave. We surf goofy side - last time only had 4 people out and the wave was still nice. I also had to recalibrate the digital speedometer with the paddlewheel offset adjustment as it was about 2 mph off. I've got 1100's in the rear lockers and added the stock 650 bag to the starboard side under the seat right in front of the 1100. This seems to have made all the difference. I run the surf side bags full, non surf rear bag at around 50%, auto surf plate at 50%, 0% IBS. The more ballast I let out of the front the better the wave was. The boat is defintely listing to the surf side and the wake surf plate actually isn't doing all that much, but im happy because I've finally got a surfable wave with plenty of push. I plan to piggy back the stock bag to the 1100, right now I'm filling it manually with a pump which is a bit of a pain. Anybody have any advice on how to piggyback bags? I was just going to run a line out of the overflow of the 1100 to fill it but not sure how it will be able to drain. Thanks.

Ruzz,
Did you fill the center tank?

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Originally Posted by Ruzzbutz

. Anybody have any advice on how to piggyback bags? I was just going to run a line out of the overflow of the 1100 to fill it but not sure how it will be able to drain. Thanks.

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I just ran a short section of hose with fittings from the bottom forward edge of my 1100 into the bottom edge (former fill) of my stock 650. Then I capped the overflow of my 1100 and re-routed the boats overflow into the stock 650. You'll have to watch the 650 though as it will push your seats up if you wait until the overflow starts to run out the Side of the boat. It took me a few fills to bleed all of the air out of the bags too since the 650's are too big for that space. Just make sure the bags are oriented with a plug in an accessible spot before you start to fill them.

Yes, i started with the IBS full and the center tank full, but the wave wasn't quite there - not much push. I flipped the switch to drain the IBS and rode a bit with just the tank and it was ok, but then we emptied the center tank as well and it got way better. The wave was best when it was totally empty. Granted, now the bow is sticking in the air and the boat is listed to the side like a boat without a surf system, but this has been the only way I've been able to surf behind this boat since I've had it. I was literally ecstatic when I was finally able to ride - I had the boat listed for sale and was looking into trading it in on something else and now I'm keeping it!

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Originally Posted by c h r i s

I just ran a short section of hose with fittings from the bottom forward edge of my 1100 into the bottom edge (former fill) of my stock 650.

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Thanks for the info - my 1100's don't have any fittings on the forward side though, just the fill and drain ports on the back side and the overflow on the top. Maybe I need a different type of bag or am I missing something? I have the flyhigh 1100's I think.

Funny because I feel like I can't get enough weight in the front.

We all surf goofy and I run probably 800 on my starboard side and 500 on the port, center full and 500 IBS full. With that the wave was tall but not long enough. Now I do all of that plus add my old 650 IBS on top of my bow seats. That helped lengthen the wave considerably.

The regular side I've yet to figure out (ask russellsmojo)

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Originally Posted by Woody929

Funny because I feel like I can't get enough weight in the front.

We all surf goofy and I run probably 800 on my starboard side and 500 on the port, center full and 500 IBS full. With that the wave was tall but not long enough. Now I do all of that plus add my old 650 IBS on top of my bow seats. That helped lengthen the wave considerably.

The regular side I've yet to figure out (ask russellsmojo)

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Haha. Could be rider error!


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Originally Posted by Woody929

Funny because I feel like I can't get enough weight in the front. )

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I hear you. I just bought 300#'s of sand bags from Home Depot tonight to supplement the 750 IBS next week when we're back at the lake. Going to move them around and see what works best before I decide to invest in a more permanent additional ballast solution. I really wish the IBS had longer legs, I've got plenty of room up there under the seats.

We've had the best luck with everything full (hard tank, 750 IBS, 1100's and as much of the 650's under the rear seats) and fully deploying the auto flow, wake plate 100% up. Did have to dump some off the rear offside to clean up the goofy wake. Wave looks good, massive right behind the boat, hoping more front weight lengthens it out.

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Originally Posted by Ruzzbutz

Thanks for the info - my 1100's don't have any fittings on the forward side though, just the fill and drain ports on the back side and the overflow on the top. Maybe I need a different type of bag or am I missing something? I have the flyhigh 1100's I think.

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I believe I bought the Wakemaker branded 1100's. Several different holes to plumb into.


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The Fly High 1100 (W719-EXV) has fill/drain plugs on both ends while the W719 has a fill/drain on one end only. I got the EXV and connected it to a Fly High 11004 375# tube sac under the port side seats. That was the only way I could get it to fill and drain both bags using the pump. Prior to that I used the W719 with one fill/drain valve and connected the vent to the fill on the tube sac. That configuration filled fine but had to be manually drained.