Mercury 25 Jet 4-Stroke User Manual

MAINTENANCE
68
•
Check and adjust valve clearance, if necessary.
1.
• Check the power trim fluid. See Checking Power Trim Fluid.
• Inspect the battery. See Battery Inspection.
•
Check the control cable adjustments.
1.
• Inspect the timing belt. See Timing Belt Inspection.
• Check tightness of bolts, nuts, and other fasteners.
• Check cowl seals to make sure seals are intact and not
damaged.
• Check internal cowl sound reduction foam (if equipped) to
make sure foam is intact and not damaged.
• Check that the intake silencer (if equipped) is in place.
• Check that the idle relief muffler (if equipped) is in place.
• Check for loose hose clamps and rubber boots (if equipped)
on the air intake assembly.
EVERY 300 HOURS OF USE OR THREE YEARS
• Replace the water pump impeller (more often if overheating
occurs or reduced water pressure is noted).
1.
BEFORE PERIODS OF STORAGE
• Refer to storage procedure. See Storage section.
Top Cowl Removal and Installation
REMOVAL
1. Unlock the rear latch by pulling lever up.
10190

Mercury 25 Jet 4-Stroke Specifications

General

Horsepower	25 HP
Engine Type	4-Stroke
Full Throttle RPM Range	5000-6000 RPM
Fuel Induction System	Electronic Fuel Injection (EFI)
Shaft Length	15" / 20"
Gear Ratio	2.08:1
Recommended Fuel	87 octane / up to 10% ethanol
Starting	Electric
Weight	71 kg / 157 lbs (Lightest Model Available)
Steering	Tiller
WOT RPM	5000-6000 RPM