niznai - motor isnt allowed or able to be opened up. A new one is about £12 so no big deal
No drag in the transmission. Recently had a full strip, no grease in gears or bearings, just a slight coat of light oil. Runs as free as i can possibly make it which was why it was so fast to begin with and even for the 1st 1-2 laps of every hear it was very fast. This is why i think it was heat because it started off so well each time.