First Stand-Up/Superjet

Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
Finally finished all the turf. I still have to get my bilge pump and mount a switch. I can’t figure out if I’m going to just use a rotary switch and mount it opposite of the primer or get something that mounts on the handle bars.



And I don’t know why but getting the breather tube through the hull from the handle pole is absolutely kicking my ass! I’ve tried twisting it to screw it in, I’ve tried greasing the hell out of it, folding the tube in half which just breaks it, and my last attempt was heating with a heat gun till almost melting and I actually got it in but only the part that was hot and then it was all jacked up and stayed folded in on itself. It’s a 2” tube going through the stock 1.5” superjet hole. Every time I try and grab it to pull through with a pair of pliers the hose just rips apart too. Am I missing something here?


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Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
Finally got the motor in. But I can't get it to turn over using the start/stop button. I have two eboxes on hand, I'm using the 62T which came out of a ski that wasn't running. But the 61x came out of a running ski and everything worked fine on that ski. At first I tried the 62t and got nothing so I swapped over the 61x ebox but left the stator disconnected and still got nothing. The motor will turn over when I jump the solenoid with both eboxes, I also tried the start/ stop switch from the 61x which did nothing as well. I'm not even getting a clicking noise or anything. I tried swapping the solenoid from the 61x which was working 3-4 months ago and nothing changes.

I have the negative terminal going to the top bolt of the starter and sanded the paint off the motor in that spot and also sanded both ends of the positive and negaitve terminals. I get 12 volts to one side of the solenoid and nothing on the other. I also tried jumping the brown and red wire from the ebox, and also disconnecting the black and white wire from the start switch and get nothing. My start\stop switch is a brand new oem yamaha. Everything right now is pointing to the starter relay but wouldn't I at least get a clicking noise? I know the one that's on there now worked when I picked up that ski which has me thinking it could be something else. But I'm going to try and get a new one tomorrow regardless just for peace of mind.

Any other ideas or things to check that would cause nothing to happen when the start button is pushed?
 
Last edited:
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
To update the situation new starter solenoid did nothing. But I made a tiny bit of progress. Tried the 61x ebox again and figured I'd try grounding the stator to the motor when I hit the button and she finally turned over. So now I'm thinking it's a ground on the 62t stator that possibly got disconnected or is dirty. I have to go buy a flywheel puller but I ran out of daylight so I'll get back on it tomorrow. If I can't get it to work with the 62T I'll run it with the 61x ebox until I get another 62T stator. But I'm thinking it's probably got a bad stator/ground in the stator and that's why they let the jet ski sit in the first place. This came from a jet ski that was pretty much rotting outside, and someone has been in the ebox before and aslo replaced the 10amp fuse with a 30amp, which I'm guessing they were try to get it to start cause it's doing the same thing it's doing with me.

And a picture with the motor in.

 
Last edited:
Joined
Jul 3, 2014
Likes
18
Location
Maryland
This might not be your issue but I spent way too much time trying to fix my electrical issue and it ended up being the fuse holder. The fuse was a little too long for the holder so it wouldn't close properly. I put a new fuse holder in and it worked great.
 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
I tried bypassing the fuse as well with no luck. I've definitely got a ground issue, I swapped in the 61x ebox since it worked yesterday but that was with me grounding the stator against the engine. I actually hooked it up today and swapped the 62t stator with the 61x and installed the 61x ebox and got nothing. Then I removed the negative cable from behind the starter and just held it against the engine and it worked. So then I swapped the 62t back and got nothing, after that swapped the 61x back in and got nothing again. Everytime I swap eboxes I have to swap positive battery cables and one of the ground screws for the ebox so I don't know if I missed something, but got frustrated and will get back on it tomorrow. The mosquitoes and lack of daylight are killing me!
 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
Just to keep a journal/ everyone updated. Made some progress, kind of. So started out making a new negative battery cable out of 4 awg wire. Put that on and still got nothing. Then spent a bunch of time swapping eboxes and stators and hitting the start button every time I changed something and finally thought I figured it out and just had the starter solenoid wires backwards because it would work only if the short wire was connected to the battery and the long wire was connected to the starter. So I rotated the solenoid so the wires would be in the right spot and got nothing again. All of the wires are showing 4-5 mega ohms of resistance and have continuity. I ran out of daylight but tomorrows plan is to swap the wires around again to see if it's a certain wire causing the issue, I'm playing with 4 different positive battery cables and keep swapping them around every time I switch eboxes since I only have one long positive cable that will reach the battery. And didn't think they were an issue until now. I should have it figured out tomorrow as I feel like I've narrowed it down pretty well. I'll update tomorrow with what I find after work.
 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
I think I finally figured it out while I was sitting down thinking about it. This whole time I was using the long positive cable (once I thought I got it working I'd swap the cables so the long cable would reach the battery and that's when it would stop working) to connect to the battery since that's the only one that reaches. But the shorter wires are the ones with the fuse in line (which feeds the cdi) if it's connected to the starter it's not getting power to the cdi until the relay engages. And the relay won't engage until the cdi tells it too, but with no power going to it, it can't. All common sense once you sit down and actually think about it. I feel like a dumbass now lol. Lets see if I'm right tomorrow which I'm 99% sure I am.
 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
So a little common sense went a long way for myself lol. What I figured out was the problem while actually thinking about it was the problem. With that said I bring to you the very first start up of my year long build!

 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
Finally rigged up a flush kit that connects to the pissers and found out I'm leaking a good amount of water out of the bottom of the exhaust manifold on the rear(PTO) cylinder. I took the exhaust out and tightened everything a bit more but that didn't help any. Tomorrow I plan on trying to flip the gasket to see if that helps. If all goes well I'll take it for a test ride on Thursday or Friday.
 
Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
Went out on my maiden voyage today and it was a huge failure. I’ve got water pouring in from the old scupper tube. Which means water is getting into the tray at a high rate. I’m feeling pretty defeated and I think it’s going to end up sitting for a while at this point. Until I feel like cutting out the tray and sealing everything.


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Joined
Dec 9, 2016
Likes
55
Location
Tampa, FL
The longer it would’ve sat the longer I would’ve put it off and I damn sure didn’t spend all the money and time for this thing to rot in a storage unit. Pulled back out of the storage unit and am getting to work on it. The plan is to cut the tray out and throw it in my swimming pool to see what’s leaking and then fix all the leaks with epoxy and cabosil. And then fill it with pink foam from Home Depot.




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Joined
Aug 16, 2011
Likes
112
Location
cape may, nj
I’m in the middle of doing mine. I cut the tray with a rotozip. An air saw is probably the best. Used a Sheetrock knife to start the cut up process. Also a paddle bit works awesome. Just kept the shop vac close to keep it clear. Ended up pulling everything n sealing back up with 5200. Used strips of pink foam to fill up. Took only 2 of the small square stuff. The 2 part should be at my door tomorrow so I can get that poured in to fill the voids n start the closing up. Keep at it. Don’t do what I did and put it off for so long.
 
Joined
Aug 23, 2012
Likes
0
Location
Lexington Park, MD
The longer it would’ve sat the longer I would’ve put it off and I damn sure didn’t spend all the money and time for this thing to rot in a storage unit. Pulled back out of the storage unit and am getting to work on it. The plan is to cut the tray out and throw it in my swimming pool to see what’s leaking and then fix all the leaks with epoxy and cabosil. And then fill it with pink foam from Home Depot.




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Good idea. My brother and I defoamed ours this past winter. Filled the trays with water after 5200'ing everything. It took mine 3 different times of filling with water/emptying and drying everything off and redoing 5200 to finally stop all the leaks. You would be surprised how easy water can find its way through the smallest holes. Just glad I did that before sealing everything back up.
 
Joined
Aug 23, 2012
Likes
0
Location
Lexington Park, MD
Also, yes to the pink foam. I would add small drain plugs in the back as well and test them for water tight before sealing everything back up. If you decide on adding a foot strap or two, I can give details on how I did mine. I'm not a fan of footholds, I prefer surf stance with straps. The way I did mine prevents water from going in the tray and its a much stronger approach than the cheap inserts that leak and break free.
 

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