anyone know how to fix the sound on these…It makes a constant chuff sound ,and sometimes cuts out.the magnet and rubber wheel on the axle both spin but what makes the actual synchronized chuff ?..any help appreciated…Travis
Travis. There is a magnet and rubber piece is what makes the synchronixed sound. There is something on that rubber piece that when it passes by the magnet it makes the chuff. I found that by cleaning the rubber piece attached to the axle as well as the wheels improves the sound and chuff. The wheels use track power to pick up the electric to operate the sound unit. You have to clean it every so often. Its a cheesy sound you are better off tuning your radio to a channel with static.