Yamaha F200B - Vapor Gas Treatment

2-15
TECH
FEA
Technical features and description
Vapor gas treatment
Vapor gases from the vapor separator are collected in the canister, and then gradually discharged
into the atmosphere after being absorbed and cleaned by the activated charcoal. After the engine is
started, the vapor gases in the canister are drawn into the surge tank through the vapor shut-off
valve, which is controlled by the engine ECM, and then sent to the intake manifolds and combustion
chambers.
È Air flow
É Vapor gas flow
È
É
Combustion chamber Intake manifold
Surge tank
Check valve
Atmosphere (cowl inside)
Atmosphere (cowl outside)
Check valve
Canister
Vapor shut-off valve
Vapor separator