Question about Fisher Price Power Wheels Kawasaki KFX Ninja Ride-On Toy

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My son's 4 wheeler stopped working so i just bought a replacement battery for it. it seems to drive just really slow. i charged battery for 18 hrs. and still doing the same thing. it runs slow then catches speed then slow again. never really runs fast like it did to begain with

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First of all check for at least 12 volts from the battery and the charger, you can test this using a multimeter

Posted on Jun 19, 2012


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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: It just won't start

If you battery is old, has continually gone a month or more without being charged, or has been left charging for extended periods of time it could be the battery. But it could also be one of the switches getting dirty. I would suggest going to They have all the info you could every want on how to troubleshoot and fix these.

Posted on Dec 18, 2008

  • 156 Answers

SOURCE: how to operate a used power wheels ninja?

It sounds like your power wheels battery is low. Have you charged it up for more than 18 hours.
I seems like power is getting to the back of the toy, so I think it might be the battery.
I would also ask the people at this website

Posted on Apr 23, 2009

  • 156 Answers

SOURCE: I just acquired a used Kawasaki Ninja Power Wheels

Usually the clicking noise is caused by a crossed wire in the foot pedal.
I would contact the guys at this website
They seem to know how to figure these toys out.
Hope this helps

Posted on May 13, 2009

  • 3 Answers

SOURCE: bought new battery for power wheels-charged it for 18 hours and t

It will most likely be the Failsafe foot pedal switch. You can pull that switch out and order a new one through online vendors such as or you can make the repair on the spot by purchasing a "sealed 60 amp starter button" from your local autozone and replacing this for the old one. You will have to make it fit in the old compartment, but that can easily be done with an oversized washer. If this toy truck has three wires going to the pedal switch and most likely it does, disregard the orange one and only connect the white ones and the red one. That fixed the problem on my little one's Fisher Price Power Wheels Escalade. You can also check if the battery is good and if the motors are working by simply connecting each motor to the battery with a pair of gator clips and some cables. <!-- from fixya rte -->

Posted on Aug 10, 2010

  • 2 Answers

SOURCE: High Speed on the Kawasaki KFX Ninja four wheeler

Does anyone know the answer to this?

Posted on Dec 25, 2010

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