I HAVE A BAYOU 300 AND I CANT GET THE BATTERY TO HOLD A CHARGE,I PUT A NEW BATTERY AND IT JUST RAN THE BATTERY DOWN,JUMP STARTED IT AND ONCE I TAKE THE CABLES OFF IT JUST DIES,ANYONE GOT ANY IDEAS

 

Could be something wrong in your charging system. Assuming your new battery is good and charged. Check all the wiring, makes sure nothing is unplugged and that all the connections are in good shape. File them or sand them down to bare metal.

 

If you pull the wires while its running it should still run, so I would think your charging system is pooched.

 

kawasaki bikes will not run without a battery,if you have a voltmeter checkat the battery terminals what the dc voltage is with it running,it should br 13 to 14 volts.if its lower than 12 your regulator is the likley the problem

 

I've changed the battery in my 03 P650 3 times since I bought it new. All Kawaski Quads no matter what size (WILL RUN) with no battery if the quad is already running. If the engine shuts down when you disconnect the battery (either lead) then you have a problem with the regulator/ rectifier, stator or alternator and the charge should read 11.5 - 12.4V with the idle at 1800 RPM. I know this because I have the Service Manual!

12.8V or higher=good
12-12.5V = insufficient charge
12V and/or lower = unservicable/ replace

When you go to purchas a battery, there is the regular type (refilling the battery with electrolyte) and checking fluid level every 3mos. and an AGM sealed battery which requires no maintenance

 

The majority of atv's have a generator(not alternator) and should run even without a battery(pull start), not quite sure about efi bikes.

 

every engine I've ever ran across incl. farm tractors, rigs, motorcycles, quads, generators cars, trucks, mining tractors etc. that have a battery no matter if it's EFI or has a carburetor, will run w/o a battery unless the rectifier, stator or alternator is defective. If there is another type of engine that wont run w/o a battery connected, I haven't seen it but would like to know.

 

quadzilla420 is 100% correct!

 

i thought if the stator was bad i would not get any spark