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Razor Dirt Quad will intermittently make humming noise rather than moving when throttle is turned. This is a Christmas gift for my grandson and has less than 3 hours of riding time on it.
When being ridden it will just stop even though it is at full throttle. If the child releases the throttle and re-throttles it will start sometimes but other times it will make an apparent humming or buzzing noise and will not move. Since the child is less than 45 lbs, there should not be a weight or overheating issue. The second one with a heavier child works find.
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Question edited for clarity.
Question moved from Cars and Trucks.
Get out your multimeter and check the TOTAL voltage. You should have 24 volts or 36 volts depending on model. If you don't, take them all of and charge each one on a car charger set at 2 amps. Clean all the battery connectors with a wire brush and also the connectors. Smear them with Vaseline. Also make sure you have the batteries wired in correctly. If don incorrectly, you may be running on 12 volts!
I have exactly the same problem and it started right around the time the "gracious" 90-day warranty period expired.....
The battery lights had been on for days, indicating a full charge, but nothing happens when turning the throttle. Battery housing is very cumbersome to open, but I'll try to disconnect the battery next.
I have a dirt quad exhibiting the exact same symptoms previously described. I ordered a new controller and replaced it. The quad is making the exact same noise and did not resolve the problem. I tested the motor wire with my volt meter which registered approx 10-11 volts before the controller made a clicking noise and immediately the voltage drops to 0. I'm curious as to whether it may be the throttle?? I'm frustrated at this point. I tested the battery and it reads 24.6 V on the meter. Any ideas??
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