I Bought The Most Powerful Stand Up Jet Ski

[@RealSuburbanCowboy]

On jetskis, you should start the engine first, then start the water. Unlike a boat, they don't have that rubber impeller to get ruined if it is dry. If you start the water first, it can get into the engine through the exhaust. There should be an "automatic bilge" on the machine, and it uses a 1 way valve. Sometimes they fail. EASY FIX! Really not good to start those in such shallow water. They suck up the sand/dirt and that ruins the impeller/wear ring, and also plugs up the cooling in the engine.

[@user-rr8dn5yl7d]

That's exactly what happened... he introduced water into the crank case. I learned that lesson the hard way. But, whether he knew it or not, he did the best thing you can in that situation... get it into the water ASAP and run the shit out of it.

[@kernelbadness]

Yep. A little bit of research goes a long way when dealing with machines not in your wheelhouse.

[@tg8150]

I’ve ran skis dry for several minutes with no damage. They’re not as fragile as you all think.

[@michaelyarmie4858]

Fun when they run..

[@blownbushinggarage540]

Shouldn’t that billage pump be running whenever there’s water in the crank case

[@betobsbf]

The classic color scheme from 90's!!

[@gearheadgregwi]

X-TREME!!!

[@pepesullasulla1263]

TELA CONPRO

[@Harry-gf7ox]

I love it ! With a tye dye shirt haha

[@barrysoper2257]

Thanks for the memories - the stand up jet skis were all we had when I was young. Definitely spent more time in the lake! 😅

[@rideshortys]

Love the late 80’s early 90’s stand ups. So much I’ve acquired 5 of them now. 🤙

[@lucascady4992]

#80's Death Machines! It's amazing we survived at all?!😂

[@DestinationDesert]

We always found the started easier by removing the choke and replacing it with a primer. If you ever find a Yamaha Superjet pick it up too! Good bless Joe

[@collinrobinson4306]

The water hose flush kit isn't for tuning and you need to have the motor running before turning it on. It is only to flush out the cooling system after riding like in salt water. you should not tune on the hose. There is no load on the motor it won't be right. The Keihin carb sucks and doesn't like to keep prime or idle. You will tune for a whole day and the following week it will be out of tune again. I run SBN Mikuni 44 on all my skis. oh, and it sounds and looks like it isn't getting any or enough fuel it doesn't sound right. seems very hard to start and wants to fall on its face. i bet the throttle response is terrible.

[@mxracingunlimitedltd7784]

Yeah go with a SBN44 as fast as you can. I cant stand those Keihins they used on the Kawi's. They do make great Carb's but not those stock Carb's lol..

[@derrickanderson2783]

DEFINITELY supposed to start it first before turning on the water.

[@Do_It_U_Wont]

Idk how many times we told Joe to do this. Lol

[@Huntersprojects]

@@Do_It_U_WontI will

[@xploration1437]

Why?

[@Huntersprojects]

@@xploration1437 it’s water cooled so I could over heat and the engine could blow up

[@xploration1437]

@@Huntersprojects I know that, but why start the engine before turning on the water?

[@theoneandonly2421]

Def a 90's machine. I learned to ride a jet ski on one very similar to this one. It took me like 2 hours to learn you gotta give it gas to stabilize it with speed before you can hop up on it. Once i figured it out it was alot of fun. That was the only time i rode a jet ski. Ive rode plenty od sea doo's though. Keep rockin Joe you keep bringing back memories!

[@danellsworth1548]

NEVER TURN WATER ON BEFORE ITS RUNNING!!! YOU WILL HYDROLOCK IT

[@spilknasty8923]

I love it when you talk dirty

[@bored496]

its basically impossible to hydrolock a 2 stroke since they have ports that are always open instead of valves that will need to compress the liquid to open which is impossible

[@Fomogarage]

Why would it hydro lock? The water doesn’t go into the cylinders of the engine..

[@MrATOMBOMB420]

It needs a head gasket if you noticed when you ran it with the cap off of the connection for the hose it had exhaust coming out of that hose it needs a head gasket

[@M.TTT.]

Yea i saw that and was like "hmm that doesn't seem good"

[@Catboy-hr2qp]

I mean that hose is connected to the exhaust so don't realy see the issue

[@MrATOMBOMB420]

@@Catboy-hr2qp I don't know why everybody thinks that the exhaust is right in with the water that's not how it works it has a chamber inside but the exhaust runs through and the water runs on the outside of that chamber so it's basically like a water cooled exhaust there should not be any exhaust fumes coming out of the coolant passages

[@josephperry6822]

Riding those things is a workout! A day on the water is absolutely exhausting! It brings back memories of bruising all over!! I had a lot of respect for guys who could do tricks and make it look easy..

[@ninatrash5491]

As untrained you didn't last an hour...🤣

[@aarongrabowski3775]

You need to be in deeper water when you start that thing. You are gonna ruin the jet drive by sucking in sand and rocks. Btw, you’re missing a bolt in the top of the engine on the right side.

[@RIVERSIDEREVIEWS]

The sound of jet skies in the distance on the lake are like Cicadas singing and gives those summer vibes.

[@sailorjohnboy]

Hey Joe, when you check for spark ground the plug to unpainted metal. Paint and powder coat can act as an insulator.

[@gunman7046]

Bought one of these awhile back and could not get the hang of it lol I probably looked a fool on the lake 😂

[@Harry-gf7ox]

!!! 🤣🤣🤣💪🏻💪🏻💪🏻👍👍

[@finbah5706]

I remember trying to ride one of them stand ups in the 90's. I couldn't get up on it. And the jet impeller was aimed right at my ball bag and junk, and jetted right on it. so painful. I got rid of it needless to say the next day and got a 2 seater side by side, waverunner, Which was pretty neat. you'd sit side by side, and the steering wheel could be moved to the right or left.

[@cbh148]

Kawasaki SC, known nowadays as the Super Chicken.

[@wed3k]

Got to try harder

[@cbh148]

750SX was single carb and sold in '92-'95 model years, 750SXi was twin carb and '95-'96 (1 year where both were available). So that '92 was originally a single carb. Wonder if just the twin carb/manifold setup was swapped over or if the whole engine was swapped. The cylinder porting changed for higher top end power for the SXi engines, but I've got an SX engine with the SXi carbs in my '95 SXi and it doesn't feel any different than when I had the original SXi engine in it.

[@achmed51]

I have a 93 750sx with dual mikunis 40s, its a good all round ski, plenty of power. Never ridden a stock single carb sx or an sxi so i cant say exactly how they are different. Anyways i manage 46 mph on flat water with Gps (with a solas scoop grate on) , and i weigh 205-210 lbs, so i'd say its like the sxi HPwise (70 isch horse). Good thing about the sx is that they apparently got more holeshot power/low end power than the sxi, which from just a few years of experience i can tell is way more important than top end, even though its fun to rip at higher speeds. Good allround power for all types of riding.

[@TrevorHeintzbergerRex13]

My cousin has a 94 sx which has the single carb but he upgraded the reeds and put a timing advance. I have an 02 sxi pro which has the dual carbs and I can say that his has way more low end power then mine does even tho mine has almost 15 more hp. His will run faster then mine but I think that has to do with hull design more then anything

[@timsussenbach5376]

Dont start the water on the hose without the jetski already running otherwise you will flood the engine through the exhaust. Also jetski's without killcords usually are set to stall at idle

[@catfisher420]

The ones that didn't have kill cords are aligned to always turn . The ski is designed to do a circle to come back to you. They just idle in a circle.

[@timsussenbach5376]

​@@catfisher420yeah i mean most people set it so it shuts off at idle

[@ar2043]

Sound advice. I gave him the same advice about the two other PWC's that he bought. There's a guy on the channel that tells him that it makes no difference whatsoever so good luck with that… They'll find out when they Hydrolock the motor and wonder what the heck happened. Meanwhile the hose will continue to run in the background… L O L

[@catfisher420]

@@ar2043 He's also trying to start it in the lake with the intake grate smashed into the muck and sand.

[@TheAmpLab]

Do not turn on the hose before its running!! And very little pressure. You're probably filling the cylinders with water.

[@adamtyson1728]

Dude that is very cool that thing is badass and he's done a lot of things to take care of it what a score

[@Monkey-biz]

I absolutely loved that ski back in the day, exact ski. It has a great hull design that makes it easy to stunt, my FX-1 actually would win in a drag race though even being a 701.

[@c_bigboy33]

loving all the watercraft vids recently

[@theKGB65]

Riding tip when starting off: If you push all of your weight down on the bars, instead of trying to lift the handle-pole right away, the machine will remain extremely stable. Only lift the pole after both feet are planted in the tray. Quick downward pressure also works to save yourself from wiping out when the thing gets out of shape.

[@ericakelly8748]

Hey great videos bud just a little advice from someone who’s been messing with these a long time start the ski and then turn on the water run it and then turn the water off let it run after for 20 or 40 seconds to burn off any remaining water

[@cbh148]

750SX commonly has an issue at the fuel tank vent. The fuel tank vent is located under the hood on top of the tank. Of the 3 hoses coming out of the top of the tank, the vent is the one that goes forward (runs up the handle pole). There's a check valve in the device on top of the tank that the 3 hoses come off of. If the vent check valve acts up, it'll struggle to build and maintain pressure in the tank to pump fuel to the carb(s).

[@cbh148]

Also, they are notoriously hard to start for the first time when it's been days/weeks since the last. Some add a primer, which I've wanted to do but never got around to since they wear out after awhile and create a pressure leak. Instead, all I do is locate the fuel return line that runs from the carb to the fuel tank. Pull that line off the carb and blow into it. This will push fuel up into the line that provides fuel to the carb, doing the same thing a primer does. A cheap wing nut hose clamp holding the line onto the carb will make this quick and easy w/o needing tools yet will have the security that the line won't come off while riding. If you just used the choke alone without priming it, you end up having to run the starter for so long (15-45 seconds) that you put lots of unnecessary wear on the starter. Plus, a battery that's getting old might not handle it, where it would still have another couple of years if only needing to run the starter for a normal 1-2 seconds.

[@JFish5]

Dude I literally just had this issue with mine

[@cbh148]

@@JFish5 Right on. What'd you end up doing to address it? Also, a buddy of mine who raced 750SX's in the late 90's early 2000's (specifically only had SX's, not SXi or SXi Pro) recently told me that the plastic straws sticking down into the fuel tank for the fuel pickups can get hairline fractures in them up high in the tank, causing some issues with it's ability to draw fuel up.

[@JFish5]

@@cbh148 just have been having to prime it a lot before starting

[@ar2043]

I don't think that you're necessarily rich. I would be looking for either a problem head gasket or a problem exhaust gasket that's allowing water into the combustion process. The thing sounds like it's trying to combust with a partial water mixture. That would explain the washed out spark plugs, the sludgy mess blowing out your exhaust because of water getting into the exhaust system/combustion process. Worth checking.

[@kevinarmstrong7469]

You need to keep an eye out for a Kawasaki X2. Hands down the funnest time you can have with your pants on. But really I've had A bunch of stand ups and the X2 is so much fun. It's like a quad on water.

[@timewa851]

x2 fanatics. but 550 is my fave. classic Kawi 'Glass!

[@thebigguy8306]

Great find, good buy, a little tinkering, no Vinny Basket? Lakes region of Wisconsin (Winnebago)? Must be lots of watercraft tucked away in storage sheds.

[@slagdemon]

Not the most powerful, but not bad either. Looks nice. Try a 2 stroke Yamaha superjet if you get a chance. They are super fun, very playful and light and easy to throw around. Also try a 1500 SXR, (SXR160) as they are 4 stroke, 160 hp, and absolutely fly, but they are super heavy. ALWAYS start the engine before turning the water on. ALWAYS or you can hydrolock the engine.

[@ar2043]

That was the advice I gave him on the other PWC's that he bought about the water not being turned on until the engine was running and vice versa when shutting it off. One guy basically laughed me out of here and told me it made absolutely no difference… Well good luck with that. Lol.

[@Nameless_rat]

I was thinking the same thing, hurt to watch happen

[@mtaa11]

PRO TIP: Always start the ski and warm it up a bit before you back it down the the launch ramp. That way you a can start and go. Rookie stuff. 😃😃

[@danellsworth1548]

QUICK POWER IMPROVEMENTS: 1: hollow out the water box (pull out the stuffing) for quick throttle response and improved horsepower, 2, change impellor to a solas or equal for increased RPM and faster out of the hole response, 3, slighty bigger jets and a hotter plug for more horsepower

[@frodiesel0]

No no no. Hollow out the water box? Are you serious just upgrade to an xh2o alum box w baffles. Please do not change your jetting without using a pop off tester. More fuel in a hotter plug will not increase horsepower. This guy is a straight looney tune. I can’t believe you didn’t even suggest selling it and getting a Yamaha super jet with a B pipe. Kawasaki’s have always been slow heavy crap.

[@dynamite6507]

Is this why the machine bounces while he riding cause he ain't throttling it like that

[@jeeperzcreeperzz]

Even if this was a 3 hour video, I'd watch it all over again. I can't wait for the next one...dont leave us hanging for too long

[@ericgregory3005]

You have to start it before you add water or water can backfill in through the exhaust. Remember these from back in the day!!!!

[@IAMRUSTEDROOT]

Nice. I own a '94 750 SX and a '99 SXi Pro. My '94 has a west coast head and Coffman exhaust.

[@urbanairgunner6402]

Man this drives me nuts the anxiety. Knowing that people lie to you when you buy stuff like this just drives me crazy the fact that it seems like there are no honest people left in this world. The cool thing is that you're a mechanic and you know how to work on this stuff. The average person would not know how to do these things. I'm a mechanic myself almost 40 years in the making and it absolutely drives me crazy when people lie to you about certain things just to get ahead in life. What they don't know is that they're going to have to answer for all these crooked actions someday.

[@ryand8639]

There’s two lines running to the impeller housing. One is for the engine cooling and the other is for the bilge. I bet it’s clogged. Grey spooge is from water getting into the crankcase. There’s enough comments about this already. Assuming it’s similar to my 89…you need to tune it on the trailer in the water under load. There’s a hi/lo speed screws on the carb(s).

[@craigmorgan4676]

Love it Joe,Kwaka even better brother!👊👍👌🦾🦾👍

[@jasonwoolard9820]

Turn water hose on after after after you get it running… it’s ok to run it a few minutes without water..hydro lock ..water on plugs/ need to turn over with plugs out.. and pour a bit of transmission fluid and wd 40… Spin that all out…throw a towel over everything u don’t want oily

[@EasyMoneyCrew]

that things sick! love the videos with all the water stuff! keep it up. love the ODI lock on grips he put on that thing those are nice grips. for sure its running rich.

[@ToddleyProductions]

The Odis I have on my sxr 800 are life changing over stock. I run odi on all my stuff. They are awesome!

[@EasyMoneyCrew]

@@ToddleyProductions i know i run them on my quad they are great!

[@maxwelledison03]

Agreed. I run ODI Rogues on all my stuff. $10 grips that outlast most Chinese motorcycles...

[@benschlack5814]

Yup ODI grips turn you into Travis pastrana overnight 😂😂😂

[@EasyMoneyCrew]

@@benschlack5814 😂😂

[@catfisher420]

Where did the crankcase drain go? I see the empty spot where it used to be.

[@bikeknights1]

I literally commented on the last video you needed to get a stand up... Then boom..😂😂😂

[@KingHenryVR4]

They feature several of the 80s versions of these at the end of Police Academy 3 during a big water chase, they also show the Honda VTEC version of he Suzuki WetBike you have.

[@swedishpsychopath8795]

This 2vintage guy REALLY loves to make all the noises in the world to bother his neighbors. He even made his girfriend run the lawnmower and use the chain saw the whole time when he was drilling and hammering outside his house in the neighborhood that was nice and quiet before he moved in.

[@audiomonster303]

make noise not quiet...get er done! being quiet is for 90 yr olds

[@Antiquefarmequipment]

It's in the country. Get used to it lol

[@bobbymichelin540]

never run a hose with a 2 stroke jetski engine off. you will fill the exhaust and engine with water. only when the jetski is running can you turn on the hose, you must shut off hose before shutting off jetski. its likely your carbs arent setup right because these came with a small pin 750 and a single keihen carb. someone likely slapped the twin carbs off of a big pin 750 and never tuned them.

[@timsussenbach5376]

I was thinking the same because the twin carb came in 95 not 92

[@billythephoenix]

I'm only a few minutes into the video and I noticed it has a '94 hood.

[@bradley7723]

Nice ski, when I was a kid Kawasaki just came out with the 350 in the late 70s then the 550 came out and everyone on the lake had to have it. Also had a 79 Suzuki wet bike those were a blast. That 750 of yours should go airborne coming out of the water. The faster you go the easier to ride. Have fun with it.

[@jamesmcdermott6934]

Close to a dirtbike but without all the scrapes n bruises when ya lay it down!!!lol! Well ya conquered the hardest part about it of gittin upright on it so when you tune it up it'll b easier for ya stayin up n goin!

[@Andrew589nole]

Ski on water on, water off ski off. Not sure if it matters on these but usually it backfills the cylinders like the other guy commented

[@psilver063]

I learned on these when I was 7 yrs old. Started out riding around on my knees everywhere until I got comfortable then went to standing

[@snowyowl7042]

Quirky find, addition to the fleet Admiral Webb. Congrats, hard work paying off, views are up, subs are up

[@patrickswagger]

On this one, hope and a little faith are all I have right now; Maybe Vinnie can help you on this project?

[@gtoscowork]

Thought you were enjoying crashing into your wake.. looked like fun

[@carboywholikessupercars1017]

I have a 94 750xi ss sit down. These kawis are awsome skis!

[@spottyjack614]

The kawi 750 sxi are the fastest of the 750 class back in the day..the SX 750 came with a single carb setup stock from the factory. I had a SX and a sxi .when I put a dual carb setup on my SX ski it made such a big difference and improvement in power.. 👍👍

[@RadioReprised]

Don't mess with the diaphragms before trying to lean out the low speed T screws with it running and NO water on. The ''spooge'' at the back is likely from running the water before starting it. You can run it for at least a few minutes with no water at all...while you tweak both screws for throttle response and leave the high speed T's alone until you try it on the water under a load.

[@danielgrace551]

Turn ski on then water, do the reverse when shutting off turn water off then ski give a couple revs to clear it out.

[@maximusleehill8775]

Looks so clean 🤙🏼

[@Jjjmoutdoors]

Your merch t-shirts should say…”Looks Purdy Good”. Great videos/channel. Love watching and have learned a ton!! Keep ‘em coming!!👍🏻👍🏻

[@stevecrane4325]

Make sure the the bilge pump has a one way valve the hose. Water will come into the boat through the pump outlet. Valve should be at the pump.

[@audiomonster303]

Same color scheme as my 1995 yamaha yz125, I like it!

[@RT-vo2vh]

You need Charlie as yer crash test dummy on that thing 😅😅

[@Aberbrothock1]

I see you have really took to the water lately Joe. Nice one.

[@Robert-h7s3t]

hands down the most uncoordinated person ive seen on KZbin , gun it !

[@asdmuzak]

I have one of these a 96 SXi, the carbs are way too rich with that amount of blue smoke coming out, find the screw settings online and start from there, it should only blow half that amount at start up then it's a nice light white colour when under full knuckle. Never run the hose first, ever. They are prone to porposing, chuck at least 3-5 stainless washers under the back bolts of the ride plate, it'll change it all together. Get some fatty sponsons, they are death at speed stock. I've hit 82kmh on mine with 1/4 throttle to go. I have a 2023 superjet that likes you to ride it, these SXi are like telling your girlfriend you rooted her sister and holding on for life, they are full bucking broncos. Wicked ski when you master it, full sideways water level turns with full power, awesomeness!

[@flyprincess69]

I had an old 550 back in the early 90’s. It was the hardest thing to lean to ride. Once I got it, it was a blast. Wish I still had it. I took it to my local Kawasaki dealer for an issue and they wouldn’t touch it, because it had no vin #. Sold it cheap for parts. Buyer beware and lesson learned.

[@ptsdgopedsnbikes8156]

That exhaust stuff is the water that went into the engine that was on before the ski was started but it'll be fine

[@tedsgibson]

Man that ski is pretty cool. Glad to see you get it going and have fun with it.

[@BlueSea_72]

I feel your pain on the GoPro. I lost one filming one of my vids. In Canada with all the accessories like yours it’s around $600. Love your vids man. Always enjoyable and you never give up.

[@MATT-DREWS]

What lake were you on? Water looks super clean and clear! I'm in Madison and lakes around here are all muck and seaweed

[@scottfoster9690]

Get rid of the choke and put a primer kit on it. It will start easier. Start it first before turning on water too. Nice ski i like old school stand ups ive worked on and owned many of them over the years.

[@patlsmith404]

I have an 89 Kawasaki Standup.👍🏼😎Need to get mine painted and new pads.

[@rockiegreen7674]

Ya the stand up jets skies are pretty cool you know what would be cool to see him work on is a old hit and miss motter in put it on shomething

[@jstogryn1]

I cannot believe you didn’t see the two nuts missing from the valve cover

[@mikebk7807]

2-stroke -> no valves -> no valve cover. It‘s the air box.

[@timewa851]

@@mikebk7807 it's aWlll GuD.

[@coyster530]

I have an 89 Kawasaki 550 almost identical to this I got it when I was like 20 needed rebuilt started rebuilding it and wasn't able to ever get it finished and ended up selling it as Parts I really miss that it was fun to ride when It ran

[@bbroken1]

In the state of Wisconsin do you need a title to register the machine or just a bill of sale? Im my state of Washington you need both bill of sale and title to register the car boat or motorcycle Or any power sports machine.

[@jaredmcquiniff5362]

You know what, Joe? This was certainly a stand up video and I enjoyed it thoroughly as always! Practice taking off on your belly then standing once you get going.

[@Bunk599]

More fun toys. Did not make a precise count but seemed like you dropped it far more often on right turns than left? The new GoPro takes sharp and vivid videos.

[@ricerneon399]

To keep it from bouncing try a few washers under the ride plate in the back. Pole up one leg up front one in the back and lean over the pole a bit

[@FUELFIREGARAGE]

Definitely not running right .use the trailer as a run stand in the water strap it to the trailer .carbs need work

[@Jdwescott]

I had a 650 back in the day,not only fun a heck of a workout riding lol

[@ricerneon399]

And like others said. Start the ski first then turn the water on it can go up the exhaust ports and into the cylinders

[@AlexSimmons-rd4zd]

Always start the jet ski with no water going threw it and after you get it running turn it on if you try to start it with water going threw it you could hydro lock the motor

[@Scoper50]

I wouldn’t worry about the idle. A lot of guys set it to zero on standup skis including me. If I fall off of it and my kill switch doesn’t work, I don’t want to keep idling.

[@charless2867]

Start the engine first. Then ad the hose water. And by the way. Kawasaki made a 440 that was the first Kawasaki JS.

[@TheTwistedStone]

Have a chance at picking one of these up and looking forward to your digging exercise in next video....

[@lastoppertunity333]

While watching the gopro video part im screaming at the screen "joe move the head band up just a little please!!!!" I couldn't take looking at the handlebar.

[@williampope3796]

You get an A for effort. A lot of my buddies had your model ski. They were constantly in the shop. Maybe it’s just the nature of the beast. Enjoyed the video…thanks.

[@ek.chadith5092]

so the sxi is dual carb and the sx is single carb, made only a few years later, old man had both and we still have the our kawi 1100 triple zxi, so if the ski is a sx and it has a twin carb motor they put a zxi twin carb into basically the same ski

[@edwardweisenburg16]

I'm thinking that you need to level out the settings on your jet trim. It's too high causing up and down riding.

[@barrybrehm3555]

If it doesn’t idle, it’s probably too rich and that is why are you getting the Grey group mixing with the exhaust gases?

[@zacharybenton2883]

I can tell this video didn’t go as expected but it turned out awesome

[@StefanMailey]

Bring a flathead to the lake. Your High and Low speed screws are way off. I can hear it loading up at idle. rich. Dual 38's on that puppy?

[@LindsayDunia]

I noticed you have a spot for a shutoff lanyard but didn't use it. I had a 93 Polaris that would crank no start without a Lanyard, you may want to attach one just use the one from your Polaris and see if it helps with the long crank. You did mention a weak looking spark maybe whatever in the CDI that is supposed to prevent a start without a lanyard is failing and allowing it to start just with a low spark. And yes, ski on, then water you risk hydro locking by doing water then ski on.

[@anthonydamico8262]

Ah the sound of a stand up jet ski bouncing on the waves brings me back you should try to find a wet bike

[@robinbrowne5419]

Kawasaki designed this small watercraft with 3 main parts: A powerful two-stroke engine, a high capacity impeller, and the maniac standing in the back :-)

[@mxracingunlimitedltd7784]

You should really wear a Kill Switch Tether to your life jacket. But next thing you should do is two Keihin Carb Rebuild Kits, or even better a Mikuni SBN44 Carbs conversion. Even a single Carb would be okay really. Plus single Carb is just way easier to tune and set it. It should start up when its hot basically instantly. Install a primer kit as well. It will really help the Cold Starts ALOT and keeps the Battery from getting drained down from cranking If not after that then most likely bad Crank Seals. Also you almost ruined the jetski with all that water from the hose lol They only need alittle water after started up to flush them out or keep it cool. But always start it first...! The water is normal from falling like that.. Once you get to ride it fast it would be pumped out if it has the stock siphon pump as well You could replace the Hood Seal if you wanted to make it more water tight.. But you got the bilge pump. Just get a switch for the handlebars for it...

[@Scottish4evr]

For a few $$$ you could have bought a Gopro Floaty for those dangerous sea/lake voyages where the trusty Gopro shows it's Achilles Heel.

[@keithdosik]

Sorry to hear about your go pro!

[@Joe_HamRadioGuy]

Yup like everyone else said you were drowning it good thing you didn't hydrolock it. Check them carbs start it first then water. Shut off the water then engine.

[@adamg7904]

Start engine before turning water on to avoid hydrolock!