20 Most Recent Razor MX500 Dirt Rocket - Page 2 Questions & Answers

rpm to high in gear stop that your going to break it

Hello,

Thanks for using FixYa.

The pawls inside the free-hub (or freewheel) are gunked up (technical term here...). There is a ratchet mechanism that allows for coasting (when it disengages) and engages, when you apply force to the wheel. Try applying some lube to the inside might free this up.

I hope this helps. Thanks and good day.
HotRatchet

I would think they turn on the braklight...

Well if it's missing fuses obviously it won't run. When you turn it on does the green light on the throttle come on? if you have a voltmeter that would help. Are you sure the charger is good? if so you want to see 39 volts or so across all 3 batteries. Sometimes the switch contacts develop excessive resistance try shorting them with your screwdriver... if it runs you need a switch. can you hear the controller click when you turn the throttle?

plz.we have to use a little common scense in this case.The razor-dirt rocket 500/or any model that run on _Electricity can not get "wet" for any reason.For example what happens when you drive a remote control car in water? The electrical motor dies,not before smoking first. It is nyeve of the manufacture to not a protective cover on or around the motor, which electricity flows inside. the 3 vent holes is for heat ventilation

Jessica: First, check the chain and sprockets. Check the two chain sprockets for worn or bent teeth. If either of the sprockets is damaged, replace them. If the sprockets are OK, Check the chain for any damage If the chain is damaged, replace it. You are checking the chain for kinks, stiff links, damage to the link side connectors, and checking that the chain is not bent (side to side) Check to see If the chain is loose. If it is, you'll need to loosen the rear axle nuts and pull the rear tire backwards to tighten the chain, then tighten the rear axle nuts. *Make sure that the rear sprocket lines up with the front sprocket*. Just lay a straight edge along the two sprockets, ( A yardstick will do), and make sure that the sprockets touch the yardstick along the whole length of the sprockets. If the rear sprocket is cocked (not lined up with the front sprocket) loosen the axle nuts again and push on one side of the rear tire or the other side until the sprockets line up. When you are finished tightening the rear axle nuts, pull up on the chain between the sprockets... the chain should not move up or down more than 1/8 of an inch. The chain will stretch over time, and you need to check the chain for looseness before riding. Happy and safe riding!