two-stroke engine
smoker
two-stroke
four-stroke engine
second
Bo-Bo
torsiograph
twin-engine
automobile engine
pivot gearing
third gear
locomotive
bimotored
twingle
whimsey man
driveshaft
first
four-stroke
mill
car carrier
dual-clutch gearbox
hopped-up
wrist plate
donk
Co-Co
Orion drive
fifth
A1A-A1A
desmodromic
entry ignition engine
overtorque
driving shaft
multiengined
Mallet
Otto engine
Wankel rotary engine
twincharger
epitrochoidal engine
Wankel engine
engine generator
transmission
idle
opposed piston opposed cylinder
transmission shaft
baffle
crankcase
transmission system
tranny
thumper
propeller shaft