Seadoo won't start need help

[diasinho]

i have a 92 sea doo sp and it wont start... it has fresh gas, new spark plugs, the carb has been cleaned, the main jet valve has been played the air valve has been played with, the ignition timing has been adjusted the gas filter is in good condition... dont know what to do anymore! any ideas to what im missing? my started is faulty but it still turns the engine good im missing sensor in between the 2 spark plugs but i dont think that prevents it from starting cause its just a safety in cause the engine over heats...
what to do please help?

 

[UpstateSeaDoo]

make sure your carbs are set correctly! High Speed- 0 Low Speed-1 pop off pressure between 22-29! also check to see if you are getting spark with spark tester! and get the temp sensor! could have bad coil!

 

[diasinho]

I'm going to start from scratch, gonna get the compression tester, but I'm sure the pistons have lots of compression!I'm gonna put new spark plugs and put gas in directly in the pistons if it starts for about 3 seconds means the spark is good and Ill go back to the carb... Correct? Cause if it doesn't work should look into the coil right?

 

[UpstateSeaDoo]

Check compression first if not at least 125 its not gonna run! if you think its carbs put little mix gas in carb or unscrew the plugs put few drops and see if fires!

 

[diasinho]

Well I'm hoping it's not the compression cause that will be a little out of my league... And I kinda think it's the carb cause I cleaned the carb with sea foam but cause I'm such a good mechanic I didn't find the needle or float to see if they were at fault! And another reason Is the fact that plugs r always wet! But what throws me off also is that I put gas in the cylinders thru the plug holes and it didn't fire! I hate mechanics grrr...

 

[needforspeed]

typo

Well I'm hoping it's not the compression cause that will be a little out of my league... And I kinda think it's the carb cause I cleaned the carb with sea foam but cause I'm such a good mechanic I didn't find the needle or float to see if they were at fault! And another reason Is the fact that plugs r always wet! But what throws me off also is that I put gas in the cylinders thru the plug holes and it didn't fire! I hate mechanics grrr...

You need some dry plugs to see if you are getting spark...If they are wet it could be a leaky needle and seat. The reason you didn't find a float is because there is no float it is pressurized by a fuel pump and metered by the needle and seat. If your plugs are wet it won't fire. So if it was me, I would get dry plugs and hold a plug against the engine while it is hooked to the spark plug wire and crank engine to see if I have spark....Make sure there are no gas fumes around. If you have spark, the next thing I would do is change the needle and seat. I am not a mechanic I just wrench on my two SeaPoos

 

[diasinho]

What do u mean by seat? Or do u mean seal?

 

[needforspeed]

What do u mean by seat? Or do u mean seal?

http://www.atlanticjetsport.com/index.php?l=product_detail&p=846
The needle rests in the seat under a spring tension and lets the fuel in to the carb, the spring controls the pop off pressure. sometimes they leak by and let too much fuel into your engine and it will cause hard/no start due to flooding...you said your plugs were wet. The link is not to advice purchasing from this place it is just a picture of the needle and seat if you click on the picture