Monterey 180 FS Owner's Manual page 113

Chapter 8
Symptom
Poor boat
performance
Poor gas mileage
Throttle/shifting
problems
Excessive vibration
Electrical problems
8-2
Possible Cause
Contaminated fuel
●
● Uneven load distribution
● Engine trim wrong
● Improper propeller selection
● Excessive water in bilge
Engine problem
●
● Plugged flame arrestor (stern drive)
● Engine trim wrong
● Marine growth on hull
● Engine problem
Corroded cable
●
Kink in cable
●
● Engine problem
Propeller damaged or fouled
●
Bent propeller shaft
●
Engine problem
●
● Blown fuse or open circuit
● Loose wiring connections
Defective switch or gauge
●