New rider here. First standup. Wordy.

Hey guys,

A buddy and I were recently having a few beers on the patio while talking about how
motorsports had changed so much that ability was no longer really part of the game. After a while, we started talking watercraft. This occurred naturally since we are planning a Florida/Bahamas trip via pwc. It turned out that neither of us really had been around stand ups much since childhood. Like myself, he had always been interested in this aspect of the sport. Enough so that we have done enough research about this to know what we wanted.
Requirements were short and sweet. Cheap, reliable, with freeride/stunts being at the top of the list. Well, it doesn't take either of us much time to get very motivated.... SN SJ it is, we started looking.

Enter subject-
IMG_0009.JPG IMG_0012.JPG

Mods I have noticed-
R&D ride plate
Worx grate.

We quickly found a 93 for a good price. I am not a fan of the current look at all. We rebuilt the carb and it starts and runs great. We have put several tanks through it so far and it mostly seems fine.

The rest of this is going to be difficult to explain/understand as it is highly subjective and at the fingertips of a beginner......

We had little issue standing up and riding the ski. The first time I got up I was unstable and tense. After maybe 15 min of standing, falling, and remounting, I went back to shore and found myself thinking, "This is far more tiring than I remember!". The next time out I realized how tight and controlling I was. I immediately thought back to riding dirtbikes and what I had learned as a child. The key for me is absolutely to let the ski have its head and be loose a little. These terms may not work for everyone but it was a game changer for me. I was not really getting tired or anywhere near as unstable on the ski. Great right!? Well....now that riding this thing was a go other issues started to arise. I am having a hard time sorting them out as there are several and it's is very difficult tell if it's the ski or myself causing the issue.


Basics. I.e. Possibly mechanical
Ski seems to need a bit of left steer and left weight to go straight.

It seems to porpoise more than it should. I am probably 230 wet and I have to be feet to the bulkhead and leaned forward over the handle pole to stop it, and this is only in very light chop. Anything else and it will hop. I really feel that if the pole were somewhat shorter I could work this out without issue.

The power isn't there. It really doesn't want to pull me out of anything slow, very bad. Compression is good so I don't think it's the engine. I just wish it had a little more braap.

While riding and crashing a lot I feel as though the ski has more and more weight in the rear. After a while this appears to not go away no matter how long I'm on plane.
Possibilities include- no bilge, waterlogged foam, rider is worn out. Lol


Rider issues.

It seems as though I tear up my shins reboarding. I don't notice while riding due to some nerve damage on my shins that wraps around the outside of both legs. Does turf help with this issue or is it a reboarding error?

I have tried each foot in front but honestly just prefer to switch while riding. This does cause some instability while preparing for a turn but seems far better in a turn. I kinda feel like it's similar to motorcycles. Hang off the same way on both sides. Lol.


Desired mods. I tend to modify things.

Washers on the back of the ride plate.

Shorter RN handle pole.

701.

Foot holds.

Rocker kit.



So far it is even more fun than I thought! You actually get wet on these things! I am already looking for a rn. I absolutely will accept any outside input so let me know what you think. I am looking forward to being part of the community.

Thank you,
Jeff
 
First off you know a lot more already than most beginners...good on you for doing research before asking questions.

1. You could just need a steering cable adjustment. Easy fix. The ends rotate after you loosen the lock nut and lengthen or shorten the cable as needed.

The proposing you can try a longer ride plate and or shorter pole. Really a mixture of things but a lot of the time it is just the rider. Takes a while to learn to keep it flat.

650 motors are not powerful at all. And that “Brap” you are looking for might not exist at all even tuned correctly.

The weight in the rear, only thing could be water in the bilge. It gets sucked out slowly. I’ve never noticed a weight difference from it though. It may be waterlogged but that is a constant weight. Water just doesn’t go in and out of the foam freely.

Definitely turf and thick foam padding underneath makes boarding and riding much nicer.

Turning and riding. Your feet will move constantly...just let it happen. You’ll get used to where they need to be to do certain things.

For the mods, the best mod is learning to ride and ride well. A lot of people can’t ride as well as their ski can and continue to add mods to try to make it better. Ride plate shims can help keep the nose down. Shorter pole is definitely nice as the squarenose pole is pretty long. 701 is the best thing you could do. Foot holds make a world of difference for jumping and tricks. And rocker, makes me want to ask why you want that? Unless you are riding surf or jumping big wakes I wouldn’t do it. The ski will spray you a lot from the front that’s not blocked anymore while riding normally and can get annoying.

I thinks that’s all I can say. Other than that. Just go ride. The best thing to do on these is just getting comfortable with the ski..


Sent from my iPhone using Tapatalk Pro
 
Location
Broward
Don’t worry about mods for now... just get tons of tray time.

Once you have logged many hours on the stock ski I would get aftermarket steering, zero degree bars, install footholds, and tubbies.
Then for the motor get a 701, don’t waste time trying to mod a 650. After you get a 701 motor get a prop and b pipe then you will be set for a while till you need more power.
 

khaos

Party in a can!
Site Supporter
Location
Tidewater, VA
Good on you for doing research! You have good info above. The only thing I wish I had done sooner on my ski is shorten the pole. I think that @ 230 you might want to seriously consider shortening the stock pole. @202 I cut mine 6 full inches and I am so much happier with the level of ride. My ride plate is the factory plate cut flush with the back of the hull. I have a newer and I believe shorter 2014 RN with a 701 stock head/stock pipe and a lightened flywheel. Speedy sprocket lightened my wheel and there is a build thread including the pole cut. I agree that once you get some tray time you should delete the 650 for a 701. The power diff will be yuge. Get good in the tray. Then look at your options.

Welcome to the sickness. ;)

EDIT: I only ride surf fwiw.
 

smoofers

Rockin' the SQUARE!!!!
Site Supporter
Location
Granbury, TX
Great advice so far in this thread. I'll repeat (like everyone else above) the importance of a shorter pole. I'm running a shortened (-4.5") RN pole on my SN. Makes a world of difference for taller and heavier guys like us. I'd also look into the quick steer mod - you basically drill a hole for the steering ball on your turn nozzle closer to the nozzle and move the ball over. Makes a world of difference in the quickness of your steering.
 
Wow! This has to be one of the best forums I've ever been a part of. Thanks to everyone in here. I will take your advice and focus on the tray time primarily. On a side note, does anyone know where I can get a PWC specific wetsuit in Dallas area. I also scuba dive but would certainly like a wetsuit that is designed for this use.
 
Made some progress in the looks department today. Removed the decals that were not on the hood. That paint looks like it will come right off. I will do that when im ready to do some real painting.
 

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To a few of your points.... it could feel awful out of the hole from the stock prop. I don't know for sure if the 93 is able to take the later props because the nozzle and pump design changed in the early years. I replaced an aluminum prop with an 08+ OEM stainless prop and it made an incredible difference. It made my ski jump out of the hole instead of caveating, and I don't think I gave up any top end.

The left steering is just steering alignment, you can fix that on either end of the steering rod with the adjuster.

Porpoising is what it is, ride plate may help a little. You have the right idea leaning forward.

Early on I tore up my shins re-boarding. Then I learned to set the ball of my foot on the rear edge of the tray, and then stand up as you take off.
Kind of like watching a first time wakeboarder vs someone experienced. It seems easier and much faster once you get the hang of it. All in one motion I set my foot up, throttle off, and stand up.

As others said, I would just make sure it is sorted mechanically and then have fun riding the crap out of it without worrying too much about upgrades.
 
Hey Jeff,
Interesting read. i can relate as I just got into the sport too, about 2 yrs ago. Picked up an 87 JS550, learned to ride it, a yr later bought an 550SX & liked it better.

To back up a bit, I'm a 52 yr old guy, like 225, been waterskiing for 20+ yrs, mostly on a foil or SkySki, which I can do back & front flips pretty easily. I don't think I'll be flipping a jetski anytime soon but I understand how to throw it around a little. Both my 550s porpoise too & besides leaning forward or pushing forward on the bars, I've found that carving side to side also tends to lessen the porpoising. You can also control it a bit with the throttle....kinda like a dirt bike. Down on the gas a bit going into a series of wakes, the give'er gas as you go over it all. You have to look ahead & plan your entry & exit a bit to keep it up.

Besides the 550s, the only standups I've been on was a 650SX & once on a SN 650. The biggest thing I noticed about how much different the SN rode was how easily it turned with the handlebars, even standing straight up. Riding the 550 is more like carving a snowboard, leaning into it, even steering with your back foot.

Anyway, good luck. Hope this all works for you.
 

Krenn Power Sports

Site Supporter
Vendor Account
Have you looked at x2's or fixed steer stand ups? Completely different than a pole ski and closer to what you may be use to.

Hey guys,

A buddy and I were recently having a few beers on the patio while talking about how
motorsports had changed so much that ability was no longer really part of the game. After a while, we started talking watercraft. This occurred naturally since we are planning a Florida/Bahamas trip via pwc. It turned out that neither of us really had been around stand ups much since childhood. Like myself, he had always been interested in this aspect of the sport. Enough so that we have done enough research about this to know what we wanted.
Requirements were short and sweet. Cheap, reliable, with freeride/stunts being at the top of the list. Well, it doesn't take either of us much time to get very motivated.... SN SJ it is, we started looking.

Enter subject-
View attachment 342446 View attachment 342447

Mods I have noticed-
R&D ride plate
Worx grate.

We quickly found a 93 for a good price. I am not a fan of the current look at all. We rebuilt the carb and it starts and runs great. We have put several tanks through it so far and it mostly seems fine.

The rest of this is going to be difficult to explain/understand as it is highly subjective and at the fingertips of a beginner......

We had little issue standing up and riding the ski. The first time I got up I was unstable and tense. After maybe 15 min of standing, falling, and remounting, I went back to shore and found myself thinking, "This is far more tiring than I remember!". The next time out I realized how tight and controlling I was. I immediately thought back to riding dirtbikes and what I had learned as a child. The key for me is absolutely to let the ski have its head and be loose a little. These terms may not work for everyone but it was a game changer for me. I was not really getting tired or anywhere near as unstable on the ski. Great right!? Well....now that riding this thing was a go other issues started to arise. I am having a hard time sorting them out as there are several and it's is very difficult tell if it's the ski or myself causing the issue.


Basics. I.e. Possibly mechanical
Ski seems to need a bit of left steer and left weight to go straight.

It seems to porpoise more than it should. I am probably 230 wet and I have to be feet to the bulkhead and leaned forward over the handle pole to stop it, and this is only in very light chop. Anything else and it will hop. I really feel that if the pole were somewhat shorter I could work this out without issue.

The power isn't there. It really doesn't want to pull me out of anything slow, very bad. Compression is good so I don't think it's the engine. I just wish it had a little more braap.

While riding and crashing a lot I feel as though the ski has more and more weight in the rear. After a while this appears to not go away no matter how long I'm on plane.
Possibilities include- no bilge, waterlogged foam, rider is worn out. Lol


Rider issues.

It seems as though I tear up my shins reboarding. I don't notice while riding due to some nerve damage on my shins that wraps around the outside of both legs. Does turf help with this issue or is it a reboarding error?

I have tried each foot in front but honestly just prefer to switch while riding. This does cause some instability while preparing for a turn but seems far better in a turn. I kinda feel like it's similar to motorcycles. Hang off the same way on both sides. Lol.


Desired mods. I tend to modify things.

Washers on the back of the ride plate.

Shorter RN handle pole.

701.

Foot holds.

Rocker kit.



So far it is even more fun than I thought! You actually get wet on these things! I am already looking for a rn. I absolutely will accept any outside input so let me know what you think. I am looking forward to being part of the community.

Thank you,
Jeff
 
get rid of porpoising by never really going TOTALLY straight... always just a little turning and it hooks up great! ...at least that is what I've found ( I am no expert either, but that helps a ton on my stock RN Superjet)
 
get rid of porpoising by never really going TOTALLY straight... always just a little turning and it hooks up great! ...at least that is what I've found ( I am no expert either, but that helps a ton on my stock RN Superjet)
I've mentioned this before too & was basically told I don't know what I'm talking about.

Works for me too.
 
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Wow! This has to be one of the best forums I've ever been a part of. Thanks to everyone in here. I will take your advice and focus on the tray time primarily. On a side note, does anyone know where I can get a PWC specific wetsuit in Dallas area. I also scuba dive but would certainly like a wetsuit that is designed for this use.

Lots of good answers in this thread for you, so ill address what hasnt been:

Most of us run surfer wetsuits, they have the flex panels you need to be able to move around without a ton of added fatigue. Wetsuitwarehouse.com is where I have bought all mine, I ran a 130$ quicksilver backzip for 4 or 5 years without complaints, upgraded to a very spendy ripcurl chestzip a few years ago and super happy with it as well. Just depends on your budget. Not sure where you are riding but I use my 3/4mm wetsuit year around here in Idaho, down into 15 air temps and breaking ice, all the way up to 70's air temp in the spring. Thicker will be warmer but more restricting and wear you out faster. Thinner might not cut it depending on water temps.

Best advice I can give is always dress to break down and be swimming, because sooner or later you will be in this sport and if you under-dressed for the water temps you could be in trouble.

My next suit will be a 3/4 john with a 3mm shirt to go over, so i can easily adjust for various temps.

After typing this up I went and bought this https://www.wetsuitwearhouse.com/PROD/MM306DH4.html

Really good deal, $45 bucks for a 3mm XCEL Long John, same stuff SEALS use.
 
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ride + ride + ride
scoop grate + extended ride plate, body weight forward , no more proposing
and learn how to side mount , no knees, no elbows .....
 
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