Ski wont run, even BEFORE it sank...

The other Alex

(Jetdude)
Location
Lake St. Clair--
What the hell! To start the venting process...
The ski runs great out of the water, I got the cooling all hooked up right, no more over heating, crisp throttle. I put it in the water, give it a once over and everything looks good, get half way out of the canal and the dies, won't stay running unless I pump the primer, so I plunge my way back to the dock. I pop the hood, and its half full with water, and the low speed screw had fallen out.
???????

I put the the low speed screw back in, pumped out the water, and tried to find the leak. It looked like it was leaking around the midshaft slightly, and I noticed a bolt missin out of the three on the midshaft, so I pull all the bolts, clean, tighten and add the third one, all are tight and everything looks good. I put the ski back in the water, fire it up, runs good. Smooth, strong, bottom end is dialed in nicely. I ran it against the sea wall for at least 20 minutes and it didnt take on anywater, everything looked great, I had the throttle varrying, idling, half, everything was looking good for the 20 minutes at the seawall. SO...I put the hood back on, and head back out. Everything feels good, like I said, bottom end was dialed in, we get out the canal and I take off, feels nice, handling well with the two foot chop. The top end felt a little rich, as after a few minutes it would feel like the carb needed to be cleared out, so I figured I'd stop and close the hi-speed screw a quarter turn or so. The the ski started losing more power, couldnt even get it up on plane all the way, and then before I knew it I was down on my knees, giving almost full throttle and barely getting anything out of the engine. So we hook up the tow line, time to start heading back, I figure there is probably some water in there since its so sluggish, and then I started to smell gas. So then I figured my low speed screw fell out again. We start towing back, and I'm on the back of the ski keeping the nose up. A quarter of the way back, nose digs in, digs in some more, and before I know it the whole ski is down.
^&%$, I hate when that happens! Thank god Aaron talked me into putting real foam in there instead of Great Stuff, because the tray stayed nice and on top of the water. So A half hour later and a few mouthfull of water, we are back at the dock with my ski sitting on the bottom of the canal. The whole way back the gas smell got stronger, and stronger, to the point where it was making me nautious. I pop the hood, gas everywhere, and of course water up to the top. So we drain, the crank over with out the plugs and get it cleared out again.

Now as I go out to work on it, I need suggestions. Obviously I am taking on water, even though 20 minutes running it at the dock there was none coming in. And something is up with my low speed screw, I had it only 1.5 turns out and it fell out. Im going to see if I can get it running and find the low speed screw. I'm guessing I need to buy a new low speed screw and see if that fixes anything?
I am at a loss, what should I be checking now. Everything is spic and span and running good at the dock, but the second I get to the end of the canal I start taking on water and losing screws. Any suggestions at all would be WONDERFUL. There is no water coming in at any of the cooling hoses, all clamps are tight, I didn't notice any water coming in at the midshaft when we were running it at the dock, there is no water coming in at any of the exhaust couplers or around the water box, nothing leaking from the exhaust manifold...
I am cursed!
 

The other Alex

(Jetdude)
Location
Lake St. Clair--
No water coming in at the head, no overheating, head gasket is fresh this season anyways. I wish it was that easy to see haha. It seems like when its at the dock running, its not taking on water, but when the ski actually move THROUGH the water, it is taking on water...
mid shaft bearings?
Its got to be around the pump, what am I overlooking?
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
exhaust leak?

I chased one a few weeks ago on a virgin boat ride.

then leaky needle and seat too, hard to start, woudl hardly clear out, over heated easy, and flooded out easy
 

The other Alex

(Jetdude)
Location
Lake St. Clair--
Leaky needle and seat is a possibility, that is also fresh this season, maybe I need to rebuild the carb. My main concern right now is where is the water coming in from, and why did my ski sink...
I looked all around the exhaust, nothing that I can see...
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
hood seal?

were you just cruising or riding it pretty hard?

no water comes in when its just sitting in the water?

not even running and you have the hood off looking in there?

got electric bilge pump?
 

The other Alex

(Jetdude)
Location
Lake St. Clair--
I was riding in a stright line, no water splashing over until it start taking on water. All was well until the engine cut out, next thing I know I am going down. I wasnt even riding hard, just test riding trying to get everything dialed in.
gr

Plus, when I pulled it out of the water, my once half full gas tank is now completely filled to the top, so I have 5 gallons of gas thats a nice milky color saturated with water.
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
so it must have something to do with the attitde of the ski?

the back end lower in the water?

pull the hood off, and lean on the back and see if you see the leak?
 

surfjetlouie

R.I.P. 11/27/2008
water box leaking

jetdude said:
I was riding in a stright line, no water splashing over until it start taking on water. All was well until the engine cut out, next thing I know I am going down. I wasnt even riding hard, just test riding trying to get everything dialed in.
gr

Plus, when I pulled it out of the water, my once half full gas tank is now completely filled to the top, so I have 5 gallons of gas thats a nice milky color saturated with water.

I had a water box leaking at the front also check exhaust hoses and clamp seal around mid shaft may leak as well I also had a crack at the bottom of one of my sj right under the motor. the bearing housing needs to be silicone in.
and I have the same thing right now with my low speed needle that turn its self out. anyone can explain that? and that is a new 46 mikuni carb.
 

surfjetlouie

R.I.P. 11/27/2008
Plus, when I pulled it out of the water, my once half full gas tank is now completely filled to the top, so I have 5 gallons of gas that's a nice milky color saturated with water.[/QUOTE]
check valve may not be that good, also consider removing the water retainer by the gas tank.
 

njfl

X-H2
Since it only seems to be happening when you actually ride the ski (not sitting still, or against the wall) ride without the hood and watch for hte water.
 

The other Alex

(Jetdude)
Location
Lake St. Clair--
Boris said:
Just a shot in the dark here, do you have the older style factory bilge syphon setup ?

The stock siphon has been taken out, and the hose capped and clamped.

surfjetlouie said:
check valve may not be that good, also consider removing the water retainer by the gas tank

the bearing housing needs to be silicone in.
Water seperator has also been removed already, as well. Can someone explain the "bearing house" to me? I did silicone to pump shoe when I put the pump back in, but where is the bearing house and how do I check that?
 

The other Alex

(Jetdude)
Location
Lake St. Clair--
Boris said:
Just a shot in the dark here, do you have the older style factory bilge syphon setup ?

The stock siphon has been taken out, and the hose capped and clamped.

surfjetlouie said:
check valve may not be that good, also consider removing the water retainer by the gas tank

the bearing housing needs to be silicone in.
Water seperator has also been removed already, as well. Can someone explain the "bearing house" to me? I did silicone to pump shoe when I put the pump back in, but where is the bearing house and how do I check that?

EDIT: Ok, I know what the bearing housing is, but where is it supposed to be siliconed?
Thanks millions guys.
 
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