EasyManuals Logo

Mercury 25 User Manual

Mercury 25
35 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #17 background imageLoading...
Page #17 background image
11
90-10183R30
GB
gob22
1
2
3
4
5
6
7
8
9
10
11
13
14
15
12
16
17
18
ob
GENERAL INFORMATION
obn22
COMPONENT IDENTIFICATION
1. Top Cowl
2. Bottom Cowl
3. Water Pump Indicator Hole
4. Drive Shaft Housing
5. Anti-Ventilation Plate
6. Trim Tab
7. Auxiliary Tilt Switch (Power Trim
Models)
8. Transom Brackets
9. Primary Cooling Water Intake
10.Gear Case
11. Secondary Cooling Water Intake
12. Shift Handle
13. Engine Stop Switch
14.Throttle Friction Adjustment Knob
15.Lanyard Stop Switch
16.Steering Friction Adjustment Le-
ver (Tiller Handle Models)
17. Tilt Support Pin
18.Tilt Lock Lever (Non-Power Trim)
goc23
21
a
b
a
c
d
oc
INSTALLATION
oca11
INSTALLING OUTBOARD
WARNING
Before operation, the outboard must be correctly installed with the re-
quired mounting hardware as shown. Failure to correctly fasten outboard
could result in outboard ejecting off boat transom causing serious injury,
death, or property damage.
We strongly recommend that your dealer install your outboard and related
accessories to ensure proper installation and good performance. If you install the
outboard yourself, follow instructions in the outboard installation manual which is
provided with the outboard.
Models Without Transom Bracket Clamp Screws
1 The outboard must be secured to the transom with the four 1/2 inch diameter
mounting bolts and locknuts (provided). Install two bolts thru the upper set of
holes and two bolts thru the lower set of holes.
Models With Transom Bracket Clamp Screws
2 The outboard must be secured to the transom one of two ways: EITHER with
clamp screws (a) and two mounting bolts and locknuts (b) provided, OR with
clamp screws (a) and optional Quicksilver or Mercury Precision Outboard
Mounting Kit No. 812432A5 (c). Tighten retainer screws (d) into the lower
mounting holes when using outboard mounting kit.
goc11
ocb1
PROPELLER SELECTION
For best all around performance from your outboard/boat combination, select a
propeller that allows the engine to operate in the upper half of the recommended
full throttle RPM range with the boat normally loaded (refer to Specifications). This
RPM range allows for better acceleration while maintaining maximum boat speed.
If changing conditions cause the RPM to drop below the recommended range
(such as warmer, more humid weather, operation at higher elevations, increased
boat load, or a dirty boat bottom/gear case), a propeller change or cleaning may
be required to maintain performance and ensure the outboards durability.
Check full-throttle RPM, using an accurate tachometer, with the engine trimmed
out to a balanced-steering condition (steering effort equal in both directions)
without causing the propeller to break loose.
god9
od
TRANSPORTING
odi1
TRAILERING BOAT/OUTBOARD TILLER HANDLE
MODELS AND REMOTE CONTROL MODELS WITH
POWER TRIM
Trailer your boat with the outboard tilted down (vertical operating position).
If additional ground clearance is required, the outboard should be tilted up using
an accessory outboard support device. Refer to your local dealer for
recommendations. Additional clearance may be required for railroad crossings,
driveways and trailer bouncing.
IMPORTANT: Do not rely on the power trim/tilt system or tilt support pin to
maintain proper ground clearance for trailering. The outboard tilt support
pin is not intended to support the outboard for trailering.
Shift the outboard to forward gear. This prevents the propeller from spinning freely.

Table of Contents

Other manuals for Mercury 25

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Mercury 25 and is the answer not in the manual?

Mercury 25 Specifications

General IconGeneral
Engine Type4-Stroke
Horsepower25 HP
Cylinders2
Full Throttle RPM Range5000-6000 RPM
Starting SystemElectric / Manual
SteeringTiller
Shaft Length15 in / 20 in
Weight157 lbs

Related product manuals