Question about Razor MX500 Dirt Rocket

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Mx500 razor chain and sprocket move but wheel does not move

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  • Anonymous Mar 21, 2009

    wheel dont spin

  • molito May 03, 2009

    mx500 razor.  chain and sprocket move, but the rear wheel doesn't move.

  • Anonymous May 10, 2009

    rear wheel sprocket turns with chain, but doesn't "grab" to turn the back wheel.  I have removed the wheel and taken the sprocket off the wheel, but I don't know exactly how pop the housing open to get to the bearings.  It will grab occasionally, but generally just spins.  Any suggestions?



  • Teee Aug 23, 2012

    Bike Starts but wheel don't spin

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  • Master
  • 1,902 Answers

Have you checked for a frozen bearing

Posted on Feb 07, 2009

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1 Answer

Chain will not stay on


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!

Feb 01, 2014 | Razor MX500 Dirt Rocket

1 Answer

There seems to be a loud clicking noise coming from the bike when my child drives it. Any ideas what is causing this?


Does the clicking rate vary with wheel speed? Check the chain tensioner and the freewheel. If your freewheel only has 4 notches in it for the removal tool, it's an older one. They can get noisy before they go bad. If it has 8 notches it's a newer one, they beefed it up. Take the chain off the motor sprocket and turn the shaft. If it makes noise and wont turn smoothly, your motors bad. Check the chain for stiff links, and look for any broken plastic parts or loose bolts or screws. Check the nut on the shock and tighten that if it's loose.

Aug 07, 2013 | Razor MX500 Dirt Rocket

4 Answers

Chain is turning but the rear wheel is not moving


What??? RLtoFixYa doesn't know what they are talking about. Your problem is a faulty/broke "one way roller clutch" which is threaded onto the rear wheel. I've already replaced 2 on my son's MX500.....

May 25, 2011 | Razor MX500 Dirt Rocket

1 Answer

It wont move it works but the weals dont move


Check that the chain is still on both the drivewheel(the part on the motor) and the freewheel (the part on the wheel). If that is connected well, check if the chain moves when you rev it. If the chain moves but the wheel still doesn't move, the freewheel, or gear connected to the wheel, is probably broken and you need to get a new rear wheel. If it doesn't move, the motor is most likely shot, and you're going to need to order a new motor, unless you are confident in taking apart the motor and replacing whatever needs replacing within it.

May 20, 2011 | Razor MX500 Dirt Rocket

1 Answer

The chain on the MX500 dirt bike is slipping over the sproket on the back wheel. I've read the posts where the sproket turns but the wheel does not, that is not my issue. I'm thinking I just need to...


Is there a chain adjustment on this bike? It must be very loose to slip over the sprocket. See if there are two bolts that act as jacks to move the rear wheel back away from the drive sprocket. Loosen the locking nuts on each bolt, and tighten both equally until there is only 1/2 inch of play in the middle of the chain, then repost.
Gary

Dec 22, 2010 | Razor MX500 Dirt Rocket

1 Answer

The chain keeps coming off of my daughters MX500. Is there a way to tighten the chain or the chain tensioner. Is there something else that could be causing it to come off?


The chain usually comes off because it is not tight enough or the chain is not aligned correctly with the sprockets. Check the chain tensioner to see if it is keeping the chain tight and not moving even though it is tight, if it loosens, replace the tensioner. Check the chain for any broken or worn spots or links, if any are found replace the chain.

Jun 15, 2010 | Razor MX500 Dirt Rocket

2 Answers

Early model Razor MX-500. Replaced motor, control module to 5 wire, and throttle. Still, clicking inside controller but will not send power to motor. What's up?


the back wheel won't move it try to move but it won't it's making a loud noise.every time you give it gas.what could that be...

Dec 26, 2009 | Razor MX500 Dirt Rocket

1 Answer

How do you get the tire of the rear rim of the razor mx500 electric dirt bike???


i would suggest taking the chain off of the sprocket(cog), then loosening the nuts. then using tire-levers from a bike shop to carefully leve-off the tire. this should work....i have experience with bicycles....i race them! good luck!!!

Jun 09, 2009 | Razor MX500 Dirt Rocket

7 Answers

Chain & Sprocket turn, but Rear Wheel Not engaging/spinning


The problem is witht he flywheel on the rear wheel assembly. I had mine fixed by a professional last night (at a bike store). Razor uses a very cheap spring that is designed to fail and then to top that off did not use enough bearings as well (12 bearings short out of the factory). My son had also sprayed WD-40 all around the back axle (trying to make it faster). This is bad because, the bearings are packed in grease and WD-40 is a de-greaser. Never get WD-40 anywhere near your back axle!!! Anyway, the flywheel was way easier to remove than I thought. It is threaded onto the rim's axle shaft and just screws off. Once you get the flywheel, off you have to take it apart, fabricate a new spring (my son's new spring came from an old 10 speed's tensioning spring), reset the 3 pawls, repack the bearings, put the flywheel back together, and screw it back onto the wheel. I will post a YouTube video on this later. Hopefully this is enough info to get you started.

May 10, 2009 | Razor MX500 Dirt Rocket

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