I might try to get a tb02 spur set
Here's what I do: Fellow racers, correct me if am wrong.
Spray the inside with wd40...spray it well. Let it drip til it stops. Do the water dip thing...after, cover it with a rag, shake the hell out of it(dance to a good music
). Let it run for around 20 secs out of the water to dry. Wipe all the excess dirt and grease away. Then lube the bushings, comms and brushes. Viola!
When you do the water dip thing, the water's going to turn a dull gray, that's all the dirt you got from the motor.