cant get it to start

[Fro Diesel]

Sunday night I ingested water; I got towed in about half mile. Pulled plugs and thought I got all the water out. Wouldn't fire but had spark. Got tired went to bed.

Monday after work we had it upside down and more water was coming out. Creating that milky white gunk on my new plugs. It back fired a few times but would not run.

I wonder if towing it in could fill my engine and then put water in my gas tank. So I tried running it off some fresh mixed, no go.

A few weeks ago same ski was running great then backfired randomly and it sheared the woodroof key. I made sure the timing was set right and it hadn't moved when I replaced it.

Could the backfire yesterday shear it again? I used a torque wrench to put flywheel bolt on at 65.

Is it usual to backfire when starting a slightly wet engine?

What is the best way to make sure all the water it out from the engine. Tip to exhaust or all the way over?

What should I try when I go home today? Am I screwed bc rust may have already formed?

Any help appreciated

 

[ger87410]

I've not encountered backfiring on a properly tuned engine.

Rust may have already formed. It's important to get that ski started ASAP.

Did your plugs have an extra wide gap in them?
Is this the first time you've sunk a ski?

 

[madscientist]

do me a favor and check your rear main seals. i am fighting a problem now w/ a customers ski that seams to run great but then bang, backfire and it blows out the rear seal

 

[Jetaddict]

You're almost there. Trust me, you need to keep doing this:
1) fire the engine-if it doesnt start
2) pull the plugs, clean and dry them with WD40.
3) insert one plug, leave the other cylinder open, fire the engine.
4) pull the one plug and insert the other into the other cylinder, repeat.
5) If you have the gunk on the plugs, you still have water in the cylinders.
6) Spray WD down inside or get some ether and do same.
7) repeat the above until that engine comes to life. It will, you just have to keep doing this- I had to do it once on the 4th of July for almost 2 hours.
Was this in fresh or salt water? If it was fresh, you're ok from a rust standpoint for a while. Salt, you can probably be okay if you pour some oil into the cylinders and hold it off for about a day or so. Any longer and you are going to have issues.

 

[Jetaddict]

Oh, and my SXR backfired the last time I swamped it too-but it only did it twice and it started up shortly afterward.

 

[Idok]

I'd try to flip it upside down again....

then while its upside down have someone hold the start button AND the stop button at the same time..

this will allow the motor to roll over, but there will be no spark....and will get ALL the water out


Backfiring is typically the result of buildup of fuel/fumes which ignite....so, leaky needle/seat etc etc...

 

[Fro Diesel]

I sunk my ski six times this past year in daytona. First time I sunk mine since it was apart for a yearly check after tona.

I sunk my buddys ski saturday and got it fired up before we even left the lake. It hasn't been 48 hrs even and I have tried gas in the cylinders and pourd enough gas down the carb I don't think there will be much rust. Definitely fresh water I am about a thousand miles from salt, unfortunatly.

 

[ADDict]

Possible that you sheared the key again.. If it's sparking and not running, check there. Also, flip the ski upside down and just barely bump it over, let it drain, then again, let it drain, etc.. I always hold my thumb over one hole and bump it, seems to cause pressure and blow more out.. Who knows if thats the proper way but I've seen it done, and its worked for me every time. Definitely need to get it running ASAP! Almost every time I've back fired a ski I've sheared the key.

 

[DezKnotz]

do you have stock reeds or after market when i sink my 701 my vforce reeds blow out every time

:haha:

 

[ADDict]

do you have stock reeds or after market when i sink my 701 my vforce reeds blow out every time

:haha:

That sucks! I've sunk mine many times.. Not with the new engine though, and a/m reeds. Hopefully they'll hold up if/when it happens again. Mine aren't V-Force though, they're Boyesen. Cheaper anywa yto replace I would imagine. Whats it cost to replace the v-force every time you sink it?

 

[madscientist]

2 fat kids and 1 stand up?


i could see that as a sinking hazzard

 

[Fro Diesel]

Waitin for superjetdave to get over to his house so we can get er goin.

I have carbon fiber reeds that came with the motor. They are only a year and a half old. I read stock is best. Could a faulty reed be letting too muc fuel in?

My guess is that it is just from crankn it till the batt died and loading it with so much fuel.

I will try these techniques and report back. Thanks for all the good advice!

 

[Shadow7874]

When i got water in our seadoo all i did was take both plugs off and hit start for a few seconds which blew alot of water out, then i fogged it with wd40 blew it out, fogged it blew it out and just kept doing that then putting the plugs back till it finally started to fire. wd40 is your friend when you get water in there.

 

[DezKnotz]

2 fat kids and 1 stand up?


i could see that as a sinking hazzard

your just mad that you still dont know how to ride an x2:wall:

 

[rollin5150]

For those that may still be learning.....

[ame="http://www.sbtontheweb.com/forum/showthread.php?t=12031"]Tech 21 - Ingesting Water - Forums[/ame]

 

[madscientist]

your just mad that you still dont know how to ride an x2:wall:

if that isn't the pot calling the kettle fat!!!!


mine and every other 1 i have ridden are still above sea level. :dance:

 

[Fro Diesel]

just an update:

Unable to start...still

Got very minimal milkyness out last night but repeatedly did the things suggested with the ski completely upside down and a few other positions. Only had an hour to work on it. I have more time tonight.

It seems like it wants to start when i let off the start button. It does this a few times then backfires. (i am not holding the throttle open or hand over the carb hole) Very similar to last week when i sheared the key.

My guess is 90% of the moisture is out i just have to yank out the tank (which is a bitch bc of the damn xmetal exhaust) and pull the flywheel and toss a new key in it.

Never trying "log rolls" ever again. I hate flatwater. we need some north winds so i can get some freshwater surf. :cheer:

wait....i am going to need a running ski for that:sad2:

 

[ncarter124]

just an update:

Unable to start...still

Got very minimal milkyness out last night but repeatedly did the things suggested with the ski completely upside down and a few other positions. Only had an hour to work on it. I have more time tonight.

It seems like it wants to start when i let off the start button. It does this a few times then backfires. (i am not holding the throttle open or hand over the carb hole) Very similar to last week when i sheared the key.

My guess is 90% of the moisture is out i just have to yank out the tank (which is a bitch bc of the damn xmetal exhaust) and pull the flywheel and toss a new key in it.

Never trying "log rolls" ever again. I hate flatwater. we need some north winds so i can get some freshwater surf. :cheer:

wait....i am going to need a running ski for that:sad2:

I have a random suggestion. Did you verify you have spark on BOTH cylinders? Or did you just pull one plug, check it, and go? I am really wondering if for some reason or another you only have spark on 1 cylinder, because based on what I've read, there is really no reason it shouldn't start by now.

 

[Mouthfulloflake]

trying to start when you let off the start button is indicative of a bad CDI , my msd enhanceer acted that way when it drowned and died.

open up your ebox, Ill bet its wet inside.

verify good BLUE spark on both plugs when cranking.

 

[Kennay]

If I was sure I had most of the water out, I wouldn't hesitate to give it a shot of starting fluid. That is just me though.