Honda 99 Outboard Owners Manual

							OPERATION 
MOORING, BEACHING, 
LAUNCHING 
71” (when mooring) 
To raise the outboard motor out of the 
water while the boat is moored, or for 
maximum clearance when beaching or 
launching, tilt the outboard motor to the 
7 I o position. 
Stop the engine before tilting the outboard 
motor. The 7 lo position is not an 
operating position. 
Raise and lower the outboard motor as 
described on p.48. 
49  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
THE IMPORTANCE OF 
MAINTENANCE 
Good maintenance is essential for safe, 
economical, and trouble-free operation. It 
will also help reduce air pollution. 
Improperly maintaining this outboard 
motor, or failure to correct a problem 
before operation, can cause a 
malfunction in which you could be 
seriously hurt or killed. 
Always follow the inspection and 
maintenance recommendations and 
schedules in this owner’s manual. 
To help you properly care for your 
outboard motor, the following pages 
include a maintenance schedule, routine 
inspection procedures, and simple 
maintenance procedures using basic hand 
tools. Other service tasks that are more 
difficult, or require special tools, arc best 
handled by professionals and are 
normally performed by a Honda 
technician or other qualified mechanic. 
The maintenance schedule applies to 
normal operating conditions. If you 
opcratc your outboard motor under 
unusual conditions, consult an authorized 
Honda marine dealer for 
recommendations applicable to your 
individual needs and use. Remember that your authorized Honda 
marine dealer knows 
your outboard motor 
best and is fully equipped to maintain and 
repair it. 
To ensure the best quality and reliability, 
use only new, genuine Honda parts or 
their equivalents for repair and 
replacement. 
Maintenance, replacement, or repair of 
the emission control devices and 
systems may be performed by any 
marine engine repair establishment or 
individual, using parts that are 
“certified” to EPA standards. 
50  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
MAINTENANCE SAFETY 
Some of the most important safety 
precautions follow. However, we cannot 
warn you of every conceivable hazard 
that can arise in performing maintenance. 
Only you can decide whether or not you 
should perform a given task. 
Failure to properly follow 
maintenance instructions and 
precautions can cause you to be 
seriously hurt or killed. 
Always follow the procedures and 
precautions in the owner’s manual. 
Safety Precautions 
. 
Make sure the engine is off before 
you begin any maintenance or 
repairs. This will eliminate several 
potential hazards: 
- Carbon monoxide poisoning 
from engine exhaust. 
Be sure there is adequate 
ventilation whenever you operate 
the engine. 
- Burns from hot parts. 
Let the engine and exhaust system 
cool before touching. 
- Injury from moving parts. 
Do not run the engine unless 
instructed to do so. Read the instructions before you 
begin, and make sure you have the 
tools and skills required. 
To reduce the possibility of fire or 
explosion, be careful when working 
around gasoline. Use only a 
nonflammable solvent, not gasoline, 
to clean parts. Keep cigarettes, 
sparks, and flames away from all 
fuel-related parts. 
Wear gloves when handling the 
propeller to protect your hands from 
sharp edges. 
51  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
TOOL KIT AND EMERGENCY 
STARTER ROPE 
EMERGENCY STARTER ROPE 
The following tools are supplied with the 
outboard motor for simple maintenance 
procedures and emergency repairs. An 
emergency starter rope is also supplied. Keep 
these items on the boat, so they will always be 
available if you need them. 
OWNER’S MANUAL PLIERS 
II, X 12 mm WRENCH 
16.5 mm SOCKET 
OIL CHECK SCREWDRIVER WRENCH 
DRIVER 
SPARE CLIY 
TOOL BAG 
52  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
MAINTENANCE SCHEDULE 
Change 
Gear case oil Check level 
Change 
Check for water 
contamination 
l Engine oil filter Change 
Starter rope Check 
Carburetor linkage Check-Adjust 
l Idling speed Check-Adjust l Valve clearance Check-Adjust l Spark plugs Check-Adjust 
Replace 
Propeller (cotter pin) Check 
Lubrication Grease 
l Fuel tank and tank filter Clean 
l Emission-related items. 
Each use First month 
or 
20 hrs. Every 
6 months 
or 100 hrs. Every year Or 200 hrs. 
(I) Lubricate more frequently when used in salt water. 
(2) These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically 
proficient. Refer to the Honda shop manual for service procedures. 
(3) For commercial use, log hours of operation to determine proper maintenance intervals. 
53  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
REGULAR SERVICE PERIOD (3) 
Perform at ever indicated month or 
operating hour interval, whichever 
comes first. 
ITEM 
l Fuel filter Change 
Thermostat Check 
l Fuel line Check 
Check (Replace if necessary) 
Bolts and Nuts Check-tightness 
l Crank case breather tube Check 
Anode 
Check 
l Emission-related items. 
Each USC 
0 
0 First month 
or 
20 hrs. 
0 
(2) 
Every 
6 months 
or 100 hrs. 
Every 2 years 
0(7-) 
Every year 
or 
200 hrs. 
0 0 (2) 
0 (2) 
(I) Lubricate more frequently when used in salt water. 
(2) These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically 
proficient. Refer to the Honda shop manual for service procedures. 
(3) For commercial use, log hours of operation to determine proper maintenance intervals. 
54  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
ENGINE COVER REMOVAL 
AND INSTALLATION 
ENGINECOVERLATCH 
The engine cover latch fastens the engine 
cover to the outboard motor. 
To remove the engine cover, unlatch the 
engine cover latch, then lift the engine 
cover off the outboard motor. 
To install the engine cover, place the 
cover on the outboard motor, then latch 
the engine cover latch securely. 
Engine Oil Level Check 
Check the engine oil level with the engine 
stopped and the outboard motor in the 
vertical position. 
I. Unlatch and remove the engine cover. 
2. Remove the dipstick and wipe it 
clean. 
OILLEVELDIPSTICK 
3. Insert the dipstick all the way in, then 
remove it and check the oil level 
shown on the dipstick. 
OILFILLERCAP 
r----LA* 
If the oil level is low, remove the oil 
tiller cap, and add oil to reach the 
upper limit mark shown on the 
dipstick. Use the oil recommended 
on p.58. 
piq 
Running the engine with a low oil 
level can cause engine damage. 
Install the oil filler cap and tighten it 
securely. , 
Install and lock the engine cover. 
55  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
Engine Oil Change 
An engine oil evacuation/filling device 
may be used to remove/add the engine oil. 
Drain the used oil while the engine is 
warm. Warm oil drains quickly and 
complctcly. 
I. Unlatch and remove the engine cover 
(P.55). 
2. 
3. 
ENGINE OIL DRAIN SCREW 
Remove the oil tiller cap, and remove 
the engine oil drain screw. 
Allow the used oil to drain 
completely, then reinstall the engine 
oil drain screw, and tighten it 
securely. Improper disposal of engine oil can 
be harmful to the environment. lfyou 
change your own oil, please dispose 
of the used oil properly. Put it in a 
sealed container: and take it to a 
recycling center Do not discurd it in 
a trash bin or dump it on the ground. 
With the outboard motor in a vertical 
position, till to the upper limit mark 
on the dipstick (p. 55) with the 
recommended oil. 
Engine oil refill capacity: 
Without oil filter change: 
I.1 USqt(l.oe) 
With oil filter change: 
1.4USqt(l.3e) 
Install the oil filler cap and tighten it 
securely. 
Install and lock the engine cover.  
						

							SERVICING YOUR HONDA OUTBOARD MOTOR 
Oil Filter Change 
1. Drain the engine oil, and reinstall the 
drain screw (see Engine Oil Change 
on p.56). 
2. Unscrew the six bolts and remove the 
R. engine under cover. 
3. Use a suitable tool to remove the oil 
filter, and throughly drain the 
filter into the used oil container. 
USEA SUITABLE TOOL 
OIL FILTER 
Clean the oil filter mounting base, 
and coat the gasket of the new oil 
filter with clean engine oil. 
Use only a genuine Honda oilfilter 
or a filter of equivalent quality 
specifiedfor your model. Using the 
wrongfilter; or a non-Honda filter 
which is not of equivalent quality, 
may cause engine damage. 
Screw on the new filter by hand until 
it contacts the engine, then use 
suitable tool to tighten the filter an 
additional 7/8 turn. OIL FILTER TIGHTENING 
TORQUE: 
6. 
7. 
8. I6 ft-lb (22 N-m, 2.2 kg-m). 
Fill the crankcase with the specified 
amount (p.56) of the recommended 
oil. 
Start the engine and check for leaks. 
piEiq 
Running the engine without water 
can cause serious engine damage. If 
you are changing the oilfilter while 
the outboard motor is out of the 
water, use the water hose adapter 
(optional part) and a hose to supply 
water. 
Stop the engine,and check the oil 
level as described on page 55. If 
necessary, add oil to bring the oil 
level to the upper limit mark on the 
dipstick. 
57  
						

							SERVICING YOUR HONDA OUTBOAR!D MOTOR - 
Engine Oil Recommendations 
Oil is a major factor affecting 
performance and service life. Use 
4-stroke automotive detergent oil. 
SAE Viscosity Grades 
I I I I I I 
-20 0 20 40 60 80 100 F 
AMBIENT TEMPERATURE 
SAE low-30 is recommended for general 
use. Other viscosities shown in the chart 
may be used when the average 
temperature in your area is within the 
recommended range. 
The SAE oil viscosity and service 
classification are in the API label on the 
oil container. Honda recommends that 
you use API SERVICE category SC, SH 
or SJ oil with the “starburst” certification 
mark displayed on the container. 
Gear Oil Level Check 
Check the gear oil level with the engine 
stopped and the outboard motor in the 
vertical position. 
LEVEL PLUG 
Remove the oil level plug and see 
whether oil flows from the oil level hole. 
If oil flows from the oil level hole, the oil 
level is OK. Reinstall the plug and 
tighten it securely. 
OIL LEVEL PLUG TORQUE: 
2.5 ft-lb (3.5 N-m, 0.35 kg-m) 
58