Ok I have a 89 seadoo bombardier sp. It will not start in the water. So to get it to start I have to lift it out of the water so i can get running. My question is can it be because the battery is not giving enough cranking amps? Can it be because the starter not having enough power to turn it over while in the water? Also the starter would get stuck so I had to hit it with a hammer. I still have a little fine tuning with the carb it wouldn't idle very well. I had to make sure I was giving it gas. Could that effect the starting of it as well? Sorry so many questions. I'm learning here. I appreciate all your help. I do have a primer hooked to the carb.
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89 Sea-doo Trouble starting in water.
- Thread starter Mowers
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The reason it starts out of the water is because there is no load on the impeller. Most likely it sounds like it has low compression...Ideally it should be at 150 Psi. Here is some information on compression test;
Compression Check
You'll need a compression tester. Go to Auto Zone. I think they sell for like $25.00. The compression gage, will screw in the cylinder head in place of the spark plugs. To test compression, remove the spark plugs. Place spark plug caps on the plug cap studs near the cylinder head to ground the empty caps. This completes the circuit of the ignition electrical system and prevents any electrical problems from the caps being un grounded. Using the correct adapter for the threaded end of the tester,( same length of the spark plug threads length)screw in the tester in one plug hole. Hold the throttle wide open. Push the start button. Watch the compression gauge, when it peaks out at the most compression, let go the start button. Read the psi number. I would do it 3 times to be sure it is accurate. Check all the cylinders the same way. The ideal compression is 150 psi per cylinder. If it is less, it's not a problem as long as they are close to being the same. If the psi is less than 90 it might need be time for a tear down and a rebuild. If the psi in 1 cylinder is say 140 psi and the other is 80 psi you need to tear down and repair. This difference is a lot then there is a problem. The ratio of difference is 10% difference between cylinder readings. I hope this helps you.
Karl
Compression Check
You'll need a compression tester. Go to Auto Zone. I think they sell for like $25.00. The compression gage, will screw in the cylinder head in place of the spark plugs. To test compression, remove the spark plugs. Place spark plug caps on the plug cap studs near the cylinder head to ground the empty caps. This completes the circuit of the ignition electrical system and prevents any electrical problems from the caps being un grounded. Using the correct adapter for the threaded end of the tester,( same length of the spark plug threads length)screw in the tester in one plug hole. Hold the throttle wide open. Push the start button. Watch the compression gauge, when it peaks out at the most compression, let go the start button. Read the psi number. I would do it 3 times to be sure it is accurate. Check all the cylinders the same way. The ideal compression is 150 psi per cylinder. If it is less, it's not a problem as long as they are close to being the same. If the psi is less than 90 it might need be time for a tear down and a rebuild. If the psi in 1 cylinder is say 140 psi and the other is 80 psi you need to tear down and repair. This difference is a lot then there is a problem. The ratio of difference is 10% difference between cylinder readings. I hope this helps you.
Karl
That's the only way to do a compression test...that way the engine isn't under load from being in the water.
Karl
Karl
What you might want to check is the battery connectors. Be sure they are clean and getting a good connection. Pay special attention to the ground cable going to the engine. If you are in doubt of the condition of the battery, you could get it checked at like Auto Zone for free. Ask them to LOAD test it to see if you have a bad cell or 2. If you do it won't have enough amps to start it.
Karl
Karl
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