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The home of DISCOUNT micro r/c cars in the UK......

   
 
 
Products:
Bit Char G Cars
Bit Char G Special Edition Cars
Lxx Char G Cars
 
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Body Shells
 
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Top Tips!

We don't claim to know everything about everything, but we do know a bit about running & looking after MicroRacers, and some of the common problems experienced. This are just a few of the various suggestions we've picked up, if you have anything you want to share just send us an e-mail and we'll post it here for all to see!
I've got a brand new car, built it & it doesn't work.

Try new batteries in the controller, not the old ones out of the TV remote!
Make sure the car is clipped onto the controller correctly for charging, it can take a while to get the knack of this.
If you had to install the motor, ensure it is seated correctly and the contacts on the rear are touching the metal disc. If the motor is not installed properly the car will not function correctly.
Make sure that the contacts in the controller are touching the ends of the 2 x AA batteries firmly, with the Lxx's you sometimes need to bend them inwards slightly so they make a good connection.

 

My car isn't as fast as it used to be.

Try new batteries in the controller, not the old ones out of the TV remote!
Remove the body shell and check around the cogs & motor for fluff and other debris. If you can see any then carefully remove axle, gears & motor, clean and reassemble.
Ensure the front wheels 'freewheel' OK, if not then clean around them or gently pull the axle pin out slightly to allow them to run smoothly.

My car 'squeals' as it goes along.
The motors are made & shipped 'dry', ie no lubrication. Some cars seem to develop a squeaky motor after a little while. If you take the motor out and turn it by hand you can hear it. This can be cured with a small squirt of light oil (WD40) on both ends of the can. Turn the motor by hand to work it in then wipe any surplus off with tissue. It should now be quicker & quieter!

When I drive in a straight line the car always goes slightly off to one side.

Turn the car over, between the two front wheels is a small white lever. This is a simple 'tracking' adjuster, moving it from side to side adjusts the steering slightly.
I seem to collect magnetic debris under the front of the car.
The steering mechanism uses a small but very powerful magnet to work, hence small magnetic particles collect on the underside of the car. Don't use a vacuum cleaner to remove them, you may lose the car! Use a small strip of sticky tape to dab on the debris and remove it.
I've installed an upgraded motor, now the car won't go!
If you have installed the motor, ensure it is seated correctly and the contacts on the rear are touching the metal disc. If the motor is not installed properly the car will not function correctly.
Make sure that you haven't used the small white pinion gear that was supplied with the motor, instead, you should use the original that was in the car. (The white gear is for use on the Bit Racer cars, not the Bit Char-G's etc.).
I've installed different gears & axles, now the car won't go!
Ensure the axle gear and the idle gear (small free-running cog) are of the same colour. If you mix colours the teeth will bind.
The steering works in one direction but not the other.

If you drive the car off the table then its going to hurt!, its the scale equivalent of driving off the top of a very tall building! What may have happened is the small magnet used in the steering mechanism has been knocked off centre in its plastic retaining clip. Carefully remove body shell & clear/translucent PCB cover, then gently lift up the PCB to expose a small Phillips chrome screw head. Undoing this allows you to lift the black lid to the steering mechanism and see the magnet in its clip. If its off centre it can be pushed back, and if necessary a small drop of super glue can prevent it happening again (Do be very careful if you decide to glue this, one drop in the wrong place can ruin the car!).
If there is absolutely no movement in one direction and you have just upgraded the car battery its more likely that one of the very fine lacquered copper wires powering the steering coils has been damaged. How to repair it depends on where its broken and your skills with a soldering iron! If you do feel confident enough to tackle the repair then first remove any lacquer from the wire by scrapping with a sharp blade, then tin the wire, solder together and re-coat the repair with nail varnish to prevent it shorting on anything.

I want to be able to control the car from a greater range.
Try new batteries in the controller, not the old ones out of the TV remote!
Some people have reported success by increasing the length of the aerial on the car, or on the handset. This don't automatically work as there is a science to aerial lengths, all to do with wavelengths etc.
Let us know how you get on!


Please note we will be adding some nice close-up images of the relevant bits of the cars as and when we get chance!