Half flip95
Formerly pondracer95
- Location
- Lake Havasu City AZ
the 08+ was the most stable and predictable boat i have ever ridden. I could hit perfect laps without even trying. Either your boat is messed up or your head is messed up
Super Jet 2011 superjet, all stock very unstable ride
- Thread starter fastgtfairlane
- Start date
Ok I am new here, read a lot about the wobble, I just bouth 2011 SJ amazing codition, seriously if this ski has more then 10hrs would be surprised. Took it out today has nasty wobble, like not impossible to ride, but takes constant attention. Mainly at medium speed, then also high speed sound like prop is not catching. Otherwise turns amazing has super amount torque...so guess whom knows what this wobble is...its ffcking annoying...yes better when turning and riding hard...but come on...this cannot be normal...Yamaha would not desing this way....
- Location
- Cape Town, South Africa
The moment I made the d cut in the rideplate biggger it started wiyh the chine walk. Last weekend I filled her up with juice and the wobble dissapeared. Nose down due to the extra weight added by the fuel. When the fuel dropped below 1/4 the wobble appears again. Is your rideplate d cut
Sent from my GT-I9300 using Tapatalk 2
Sent from my GT-I9300 using Tapatalk 2
- Location
- South Africa
i have a 2009 model the reason i bought this because it was the most stable boat i ever rode i had a square and its was a crap ride jumped on my mates 12 and the next day bought my 09. high speeds it was very unstable but that was because the guy that owned it befor me had put tubbies over the stock tubbies, removed those and its like a train i can predict its every move and control it with no efffort at all
so either there is a problem with the ski like not ballanced driveline? or you just being picky or not throwing weight where it should go, have no idea,
hope you come right and start enjoying it else buy a am hull
so either there is a problem with the ski like not ballanced driveline? or you just being picky or not throwing weight where it should go, have no idea,
hope you come right and start enjoying it else buy a am hull
Vumad
Super Hero, with a cape!
- Location
- St. Pete, FL
Was riding my buddy's 08 the other day. Thing handles like 
at low speeds. Wobbles like crazy up until 20mph give or take. Sucked compared to my '04. However, once I started going around the track, it outperformed my '04 (Both have destroyers, extended ride plates). I mentioned the cut bond rail to him. I would be interested to see how that changes it.
It wasn't really unmanagable. It was mostly annoying.
at low speeds. Wobbles like crazy up until 20mph give or take. Sucked compared to my '04. However, once I started going around the track, it outperformed my '04 (Both have destroyers, extended ride plates). I mentioned the cut bond rail to him. I would be interested to see how that changes it.It wasn't really unmanagable. It was mostly annoying.
Have 2011 SJ all stock super low hours no mods no work ever done to it. Just bought from orig owner. Has nasty wobble...likte at half speed is worse...your going along feels fine every one second or so rear pitches left to right, whole ski kinda twists as well...not engine is purring fine...like prop or bondrail. So was this same thing you had...cutting bond rail rixed it....as offocurse do not wanna do this unless will fix the problem. Is annoying just want to get her shooting straight...more stable.
- Location
- NYC/Long Island
I've had my 08 superjet for 2 years and recently just put on tubbies. Chine walk happens rarely to me. I'm thinking reason the 08 chine walks so much is because of the setback pump and larger strakes. This is what gives rhe superjet great hook up and carving, but since its a modified sj hull it has the downfalls of chine walk compared to a sxr that was built ground up to be a race hull. This new hull likes to be ridden aggressively, once chine walk starts it usually continues to happen until you happen to change steering input or trim. Problem is rider error and will disappear with ride time. Try riding surf stance and transferring your weight in different ways. This should eliminate it. All riders are different weight thus the hull will react differently.
I'm not a expert on this subject, so these are solely my thoughts on it from research. It turns out high speed bass boats suffer this issue. Chine walk happens at certain speeds and is a combination of how deep the teansom is in water, water friction and torque of the prop bumping the chine side to side.
I'm not a expert on this subject, so these are solely my thoughts on it from research. It turns out high speed bass boats suffer this issue. Chine walk happens at certain speeds and is a combination of how deep the teansom is in water, water friction and torque of the prop bumping the chine side to side.
Kent, I have a 2012 Superjet and have had the same problem with chine walk I put SXR handlebars on the Superjet which moved me back a little bit and I machined the ride plate 90 thousandths to lighten the nose and that helped a lot. But it still chine walks just a little at medium speed. I have an extremely good running stock piped SXR that I might want to trade for another superjet if you decide you don't want yours.
Interested there is term for this...chine walk...surprised not ride plate...rear sponson....something like that easy fix. I have tried all different stance...riding further up....further back...telling you at medium speed you cannot over power this instability....when turning is gone.....when hit throttle goes away.....however at high speed you think gonna buck off of it. Is the chine walk what sounds like mine does?? Rocking motion but you can feel it coming. Like under the ski something grabs and twists it every other second...very odd. It's pretty strong....did get worse with less gas in the tank....if that helps. I hear of this bondrail cut??? Gonna take out ride some more investigate it more....try have someone better rider more familiar with SJ ride it. If I had bent prop or shaft of bad pump how would I tell or see that....would make noise or feel vibration or something way off?? I talked to orig owner he said far ask now never had something sucked in....this ski his not even to it's 20hr first checkup. Never was any work done to it etc....he did not ride well was older why got rid of it. I had SXR for years wanted to get SJ lighter, more torgue...something different. If do something would be to sell this one buy full modded out SJ. Just cannot believe cannot get this one to be better love this thing...its NEW!!!
- Location
- Charlotte, NC
yes that is about the same thing that i noticed on the 11 model that i rode
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Do people not read what is posted here. There is 70 post and the same questions get asked.
Hint. If you D cut a plate it is so the ski will be looser. It allows the nose to rise. So you do this and then you complain about wobble. What do you expect??? Longer the plate the more stable, shorter the plate the less stable.
Hint. If you D cut a plate it is so the ski will be looser. It allows the nose to rise. So you do this and then you complain about wobble. What do you expect??? Longer the plate the more stable, shorter the plate the less stable.
- Location
- Charlotte, NC
the ski i posted about has the STOCK, uncut ride plate.. there have been several others mentioning similar problems as originally posted.. i believe everyone elses' skis have un modded hulls as well..
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Was not referring to your post. Bottom line. The 08 and newer SJ does walk some. It is a ski that likes to be ridden aggressive. If not it is not a happy camper at slow speeds.
- Location
- south dakota
as stated... it likes it agressive... one thing i have noticed(haven't changed anything yet) is the problem goes away in a quick hurry if you just toss it into a slide or somethin.. so just don't ride it straight and you'll be fine... first thing i suggest if the problem is to the point you can't ride it, check it over for anything that can catch water. i had one ride where i couldn't stand to be on it, it was so bad... then got back and realized i had a chunk of turf catchin water.. fixed that, got better right now.. i do plan to cut the rear rail some but would rather ride than wrench so it can wait... also noticed if you are riding strait, place front foot in the center (left to right) of the tray, and take your weight off the rear foot(doesn't eliminate it but it does reduce it)
makejetskiinggreatagain
Brandon
This seems to make more sense to me. DJraider traced his problem to the rails but mine does this deflection thing when Im at 1/2 - full throttle. If it was my back rails, then it should do it more often when I am going less than 1/2 throttle since the back end would be down in the water. IT also only does it when im going straight. If I am carving at all I don't have any issues. I also don't have any issues in choppy water. Flat glassy water is the worst. For those of you who haven't experienced it its not really a chine walk or an issue with the ski being slippery or losing traction. The problem is that you'll be cruising straight and then all of a sudden without any warning the whole left or right side of the ski will just dip to the side. the nose doesn't turn one way or another, the whole ski just lays over. the faster you're going the harder it is to compensate for it. Has anyone else come up with a solution to their issue other than always carving?
Johnny Africa
Site Supporter
- Location
- Seminole 33772
Just picked an 08 thats like new, does exactly what you describe. Flat water riding at 1/2 throttle & up simply sucks. If I ride in choppy water or in another ski's wake, it runs way better with the feeling it's going to buck you off. Going to swap the ride plate 1st & see what it does
makejetskiinggreatagain
Brandon
johnny Africa, please update me on whether or not this fixes it.
- Location
- Charlotte, NC
seems like its a somewhat fairly common problem... ive ridden several other 08+ roundies and none of them had the death wobble as i like to call it..
makejetskiinggreatagain
Brandon
Its strange, because it seems like only some of them have the issue. My buddy didn't believe me either. I finally told him to see for himself. Almost threw him off the ski as soon as he cleared the no wake zone