sank my sn, now fuel problem...

[joe4thgear]

I sank my sj, got the water out of the cylinders, dried out the ebox, emptied the fuel filters which had water in them. I got it started but it won't keep fuel in the lines. If I pour fuel in the carb and start it I can ride it around no problem but if I let off the gas and try to idle it dies and won't start back up because its not sucking fuel. I checked all the hoses and everything seems to be on tight. Is the fuel pump not working? Do I need new fuel filters? I'm going to drain the gas today and see if that helps me. Or could it be something else? Somebody suggested that theres still water in the case and thats my problem. Thanks in advance.

 

[tor*p*do]

you probably have gas in the fuel and in the carb
drain and replace fuel
crack open carb and clean out with carb cleaner
try again!

 

[OCD Solutions]

you probably have gas in the fuel and in the carb
drain and replace fuel
crack open carb and clean out with carb cleaner
try again!

x2

 

[joe4thgear]

I'll try that, is there anything else I should do to protect the engine? I couldn't find a thread on how to revive a sunk ski

 

[OCD Solutions]

I'll try that, is there anything else I should do to protect the engine? I couldn't find a thread on how to revive a sunk ski

Just get it going as soon as you can so the crank doesn't rust and run at least a tank full of fuel thru it before you let it sit for any length of time.

 

[joe4thgear]

now pouring either fuel, or starting fluid into the air intake isn't working either. I have spark, I have some sort of compression, I don't know how much though because I don't have gauges but it will suck blister on your finger. Does autozone have gauges?

 

[tom21]

stop dicking around and drain the tank and clean the carbs! you are wasting precious time. you asked advice and it was given. the advice is correct and you should follow it. there is no point in starting it as all you are doing is getting more water in the motor. you have most likely gotten water in the tank and carbs in addition to water in the motor.

1 drain the fuel

2 remove the carbs and take them apart, look for creased clear plastic parts- replace if they are creased or have a fold in them. otherwise clean out the water and put them back together.

3 remove the plugs, ground out the plug wires, or you can hold the stop button down and crank the motor, you may get water coming out. if its clear install plugs and crank one or two seconds -pull plugs- is there water drops on em? if yes its got water in the motor. repeat the crank and pull with plugs in and wires on. try to start it- its gonna take a lot of pulling the plugs and cleaning them. you may even want to spray a shot of starting fluid in the plug holes and install the plugs. do not spray it down the carbs! if it backfires you will lose some hair! or worse.

 

[Jetaddict]

Wow....tell it like it is, Tom! LOL

 

[joe4thgear]

I appreciate the input Tom, but kind of rude. I've been at school most of the day and am still at work. Before I left for class I tried to start it not thinking that would be a problem, I obviously didn't know that it would be, otherwise I wouldn't have posted this thread. Didn't have a chance to work on it before I left, thats why I just tried to give it a quick start. Thanks again to all.

 

[tor*p*do]

the timebomb is ticking
even with fresh water, crank bearing begin to rust . . . :banghead:
get her running ASAP! :burnout:

 

[joe4thgear]

I emptied all the gas, out of all the lines, cleaned carb, did the cranking and the plugs are looking good. It'll fire right over with starting fluid, but it will not draw any gas from the tank?????

 

[OCD Solutions]

Did you check your fuel pump? Maybe didn't get something put back together right? Check your reeds for damage, and make sure that the pulse line is connected from the case to the proper port on the carbs and make sure something silly like the fuel selector isn't off. (it happens).

If that all checks out try running a short line from the fuel pump to a small bottle of fuel instead of the tank.

If you don't have it already you can download service manuals for the ski and the Mikuni manual here; http://www.mediafire.com/yamaha/manuals

This is one of those situations where a Primer is one of your best friends.

 

[orangefinger]

-you have no or bad compression ?
-you hooked up the lines wrong > fuel in and return ?
-your pulse line is broken or clogged ?
-your membrane in carburator is shot ?
-your fuel switch is clogged ?
-your inline fuel filter is clogged ?
-your tank is not sealing ?
-your internal carburatur fuel filter is clogged ?

 

[joe4thgear]

I'm at work right now so I won't be able to check for a while, but heres what I know for sure so far. The left reed has damage to one of the three small windows, but that was already like that. Previous owner installed a primer kit and it doesn't seem to do anything. Fuel will bubble around in the line but not make movement up or down the lines. The tank is sealed for sure and the lines that go to the tank are clear. The fuel pump looked fine I believe I put it together correctly but I will recheck. I may have put the wrong lines to the carb but I really don't think so, I'll recheck that also.
-you have no or bad compression ? have compression, don't know how much
-you hooked up the lines wrong > fuel in and return ? possible but unlikely
-your pulse line is broken or clogged ? not broken, possibly clogged
-your membrane in carburator is shot ? Is that the diaphram thats attached to the square cover with 4 screws? How do I know if its shot?
-your fuel switch is clogged ? I'll check that
-your inline fuel filter is clogged ? Not clogged but did have water in it when I emptied it
-your tank is not sealing ? sealed for sure
-your internal carburatur fuel filter is clogged ? no

 

[tom21]

uh a broken "window" is bad. this is your problem- you need a new set or reeds.

I'm not rude- just trying to stress the importance of how fast you need to handle a water ingestion problem.

at this point you should have already sprayed down the motor inside with some foaming oil or some kind of oil to protect the crank.

 

[tom21]

Wow....tell it like it is, Tom! LOL

Rich- you love it and you know it!!!:moon:

 

[joe4thgear]

Yea I sprayed it with fogging oil, sorry if you were not trying to be rude but it came off that way. So you think the reed is my problem for sure? It was already like that when I bought it...

 

[orangefinger]

reeds should be in working order, are these oem or aftermarket ?

 

[stanton]

get it running yet??

 

[OCD Solutions]

Can you be more specific regarding the damage to the reeds? Is a pedal missing, are there chips in the edges, cracks, etc...