Sprung a hole in one of the components of my jet ski and it squirts water into my hull. It was running fine, i understand it is water cooled. When I went to flush the cooling water lines out with fresh water, I noticed water spraying out of a oblong green ''thing''. I'm not sure of the parts, trying to find a schematic online. It is a 1995 kawasaki jet ski.

I'm no expert on jet-skis or anything but it sounds like you may have a "water-pump" issue. In the water it bogs and cuts out..... but put a "flow" of water from a "hose" and it runs fine out the water, the flow of water surpasses the water-pump and allows flow to cool the engine. I would check water-pump before I would go too far with it. Hope this helps, Jesus loves you, John 3:16-17 (KJV)

kawasaki ultra 260's are only cooled by lake or sea water so if the water supply gets blocked then it will overheat ! did it definatly overheat or just loose power because the superchargers do sieze up due to damp air or the pully bearing , also the dipsticks on them sometimes shear off and lock the cogs ! does the engine still run up on a hose pipe ? also has the ski been left a long time not used without fogging the valves in the head ? this is my job so get back to me ( 30 yrs ) ..

Is the bilge working properly or is their excess water in the hull could be causing a short

I had a similar thing happen on a jet ski I was restoring. There was a mouse nest in the water box. Ran fine straight ahead but when you turned a corner it would block the passageway for the exhaust gases to escape the water box. The pressure builds up in the exhaust system and makes the motor shut down like it is flooded or out of gas whenever you turned a corner. Once you straighten the machine up the pressure escapes and it runs fine again. The bad news is you may have to pull the motor to get the water box out and clean it (Kawasaki). It just depends on the lay out in the hull. It may be a labor intensive fix but it can usually be done for just the cost of a couple of gaskets.

Check your plug color. You may be having a high speed mixture problem. Is your ski spitting water out the tiny hole on the side? You should try flushing the engine, you could have a motor full of sand if you beach the craft but do not wash the sand out of the back before starting. Also inspect the engine water tubes for cracks. From the hull to the motor and from the hull to the jet pump.

To get access to the starter you will probably have to lift the motor out of the machine. Most Kawaski hulls do not give you much room to work. When you take the exhaust off you may have enough room to unbolt the starter.

The seals in the drive pump can be replaced by taking off the ride plate and pump housing. To replace any other seals (engine or hull) you will have to remove the motor from the hull.

If the seal is in the jet pump, get an impellor tool and replace all the seals and bearings in the jet pump. You will have to pull the engine to replace the crankcase seals or the rear hull seal.

Many hulls when turned sharply below planing speed will flip when riding two up. When wearing a neoprene suit you need to jump in periodically just to cool off. Make sure you have drained all the compartments in the hull of water every time you take the boat out of the water. I purchased a ski once that would not plane off and had a dry engine compartment. When I pulled the plug at the back several gallons of water came out. It made all the difference in the world losing all the ballast.

Unplugged water tube, cracked water tube, bad drive shaft hull seal, hole/crack in the hull, cracked water box, broken exhaust jacket water seal, water tubes plugged in incorrectly, no cap on flush kit, broken fitting on motor,etc. Dry out the boat take off the seat and place it in the water and look to see where the water is coming into the hull.