Tuesday, July 10, 2012

Kawasaki Jet Ski will not start directly when sit in water

Jet Ski will not start if the jet ski is left in water for few minutes.Have to crank few times before it gets start.
Also when it actually starts if feels like its flooding for few minutes.
Replace spark plugs 3 times in a year due to this issue.Still the same problem occurs.
Its 2008 Kawasaki Jetski with 1500cc engine.

WHY THIS PROBLEM OCCURS?

For jet ski not starting right after sitting in water for few minutes it seems like its the spark plugs issue.The water is getting up on spark plugs and getting the problem.

And for feels like flooding problem,it feels like gas is taking more time to burn .The low fuel in the exhaust pipe causing this.

There's no enough gas in the exhast pipe to keep exsess water out so after it sits in the water for a while its not starting right when you go to start it.


HOW CAN I CONFIRM IF THERE IS WATER GETTING TO THE SPARK PLUGS?

There is a basic procedure ,which you can follow.

The problem can be tested when you actual notice the starting issues.So ride the ski and wait for the no start condition to occur. When it does, remove a spark plug.For complete testing and confirmation remove  all of the spark plugs .That one at a time, hold it by the top, and firmly slap the threads on the palm of your other dry hand. Look for droplets of water coming out of the spark plug. If water is causing an issue, this will prove it.

IF WATER IS NOT THE ISSUE THEN,WHAT ELSE CAN CAUSE THIS?

If water is not the case then in that case i will suspect an overly rich fuel condition is causing the spark plugs to gas foul and forcing the premature replacement. You should not need to replace 3 sets of plugs a year unless you are riding over 300 hrs per year.And that's very rare

Check out that test for water on the plugs to confirm the issue.

ANY OTHER POSSIBILITY THAT CAN AFFECT THE PERFORMANCE?

Inspect the timing.If its not set right or its advanced from its actually setting then ,that is another possibility that cause problem of performance.
But as you mentioned that water entering the exhaust,in that case first try the above mentioned procedure which i have stated.

There are a few possibilities, but most of them get really expensive really quickly.
You can detect much more minute droplets of water that way compared to just looking at the tip.

This details will help.
Thanks.


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