well i just got it running again granted i still prolly need a new glow plug and yes ther is smoke comeing out at mid and top end i wasnt sure if that was right or not but now i no im not to lean i was worring about that my prob now is im customizing my 2 spur gears i kinda striped them a lil so ima dremel them a bit and see if i can get them to still work my LHS didnt have them of course ... duratrax and its old but they do have them orderd. iv read alot that this 2 speed tranny is a problem but other then striping spur gears i fail to see what else could be wrong with it granted i dont even really know how it works .. but so far its been working