Question about Yamaha Boating

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2002 yamaha xlt 1200 has trouble starting after running for a while. Acts as it is loading up really bad. Thanks in advance.

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  • 236 Answers

If water pump is good and cooling engine, I would look into the fuel pump.

Posted on Jul 09, 2019

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6ya6ya

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: timing beat

its possible its the timing belt. maybe it jumped check it out. could also be a sticky valve or electrical prob.

Posted on Jun 02, 2008

Anonymous

  • 46 Answers

SOURCE: Trouble Starting

Hi,
This is an old 2 stroke, so chances are that the exhaust needs to be decarboned.
A good indicator would be that it got progressively more and more difficult to start with time.

Further, it would be a god idea to check the compression.

Also, you have not mentioned whether or not you have checked the auto lube system. This ensures that there is 2 stroke oil mixing with the fuel

Cheers

Jon

Posted on Mar 05, 2009

Anonymous

  • 207 Answers

SOURCE: Overheating YAMAHA XLT 1200 jet ski

you may have something clogged in a water passage but more than likley u have a bad sensor the sensor is located on the main exhuast if you go on the right side of the ski and look in the engine compartment it will be located at 9 oclock u will see it sticking out of the exhuast with one wire comming out after u run the ski and the buzzer goes off pull the seat and see if the engine is really hot if u can not touch it will be hot but it has to be very hot for the sensor to pick it up if u can touch the motor and exhuast it is a bad sensor

Posted on Jul 08, 2009

Anonymous

  • 1 Answer

SOURCE: I have a 2002 yamaha waverunner xlt 1200. it will

hate to break it to you. carbs need to be rebuilt. the new fuel doesnt bode well for the carbs, clogs a really small filter and jets in the carbs
just had it done for the second time for a cost of $550/each time

Posted on Aug 09, 2009

Anonymous

  • 53 Answers

SOURCE: yamaha outboard 150 4 stroke bad vibration at 700

is you propeller bent? a dent the size of a quarter will cause a shake. If not that means your engine is misfiring. here are the troubleshooting test and tool list you need to find out. Tools(1) A compression gauge (2) a spark gap tester.(3) A Clymer service manual for your engine. (you can purchase from your local outboard dealer. I know all these are expensive but if your going to be a outboard tech you will always need them. Troubleshooting (1) check compression. without the year model I'm giving you a average numbers. Look at your Clymer manual. all cylinders need to be over 100 lbs and equal each other within 5 lbs.(2) check spark. use a spark gap tester all cylinders should jump a half inch gap. if you have good compression and good spark, fuel is the problem nine times out of ten.Ethanol gas is proven to stay stable in fuel systems for 30 days in 90 + degree heat. Drain gas tank,clean fuel lines replace primer bulb and replace all fuel filters. Yamaha has a gravity filter under engine coul clean it. Finally replace spark plugs, I know spark plugs probably don't look bad but this is a outboard. Fresh spark plugs means less resistance for the ignition system. The ignition system is week compared to automotive. Test drive boat, if the problem is still there then there is further steps to take. Again I don't know the year model so I guessing its fuel injected. Pull out your clymer manual. what is great about the Clymer Manual for Novice techs is it gives detailed info on your outboard. Troubleshooting tips and teaches you how your outboard works.

Posted on Nov 03, 2009

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I have a 2002 yamaha waverunner xlt 1200. it will idle fine but when you try to give it gas it bogs down like its not getting fuel.


hate to break it to you. carbs need to be rebuilt. the new fuel doesnt bode well for the carbs, clogs a really small filter and jets in the carbs
just had it done for the second time for a cost of $550/each time

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Overheating YAMAHA XLT 1200 jet ski


you may have something clogged in a water passage but more than likley u have a bad sensor the sensor is located on the main exhuast if you go on the right side of the ski and look in the engine compartment it will be located at 9 oclock u will see it sticking out of the exhuast with one wire comming out after u run the ski and the buzzer goes off pull the seat and see if the engine is really hot if u can not touch it will be hot but it has to be very hot for the sensor to pick it up if u can touch the motor and exhuast it is a bad sensor

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