Mercury 200 Verado Manual page 120

2. Remove fuel vapor purge relief valve cap (green cap located
aft of starter motor).
Fuel vapor vent system is under pressure. Cover valve
assembly with a rag or towel to prevent fuel or fuel vapor spray.
Relieve pressure slowly.
3. Place rag or towel around valve, release pressure by pushing
core of valve end in.
MAINTENANCE
CAUTION
!
112
3470
3472