Four-stroke internal combustion engine with contaminated oil eli
Inlet tuning of crankcase supercharged four cycle engine
Intake passage device for an internal combustion engine
Internal boost system for engines
Internal combustion engine utilizing internal boost
Internal combustion engine with valve control
Internal combustion engines
Multi-cylinder engine of crankcase scavenging type for watercraf
Pulse charger
Supercharged 4-cycle engine
Supercharged engine