I have the same issues. I just received mine today and the back truck was loose. It appears someone tried to tighten it. Grease everywhere . Silicone beads were broken open and all through the engine. I cleaned it up but if I run it at 20 scale miles or less it slides and there is very limited traction. Almost like the motors are not working at the same speed. Did a reset with no change. Emailed the dealer I got it from. We will see what happens tomorrow. I have a friend that bought a prior model and his runs great. I hope I could just get a new power unit. This is the first MTH I have bought with problems.
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