I have the same one you have I bought it as a starter set l like it but when I got it the engine was stuck in neutral. I finally got that problem solved ran it a couple times and the smoke coming out smelled like burning wires. So I put a few drops of TJs Mega Smoke Big Boy in it and it done fine for a little bit then the smoke started coming from underneath on the right side and then it stopped smoking after that. I bought this off eBay who knows what the guy put in it but it’s a sweet engine smooth runner well worth fixing.
Can someone Tell me what went wrong with the smoke unit so I can fix it thanks
