Outboard will not trim up or down.
Outboard trims up, will not trim
down.
Outboard trims down, will not trim
up.
Outboard will not return complete-
ly to “down” position or returns part
way with jerky motion.
Outboard thumps when shifted.
Outboard trails out when backing
off throttle at high speed.
Outboard will not hold a trimmed
position or will not remain tilted for
any extended period.
Outboard will not hold trim position
when in reverse.
Determine if Power Trim pump
motor operates when appro-
priate trim circuit is activated.
Pump motor operates.
Refer to “Hydraulic System
Troubleshooting”.
Refer to “Electrical System
Troubleshooting”.
Pump motor does not operate.
90-817643R1 DECEMBER 1996 MID-SECTION - 5B-11
Troubleshooting
Determine if Problem is Electrical or
Hydraulic
Refer to the following chart to determine which sys-
tem is at fault.
Trouble Chart
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