Yamaha F2 5 Service Manual

69M3E112-6
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Dimensions
Exterior
S69M2010
140 (5.5) 205 (8.1)
135 (5.3) 139 (5.5)
366 (14.4)S: 636 (25.0)
L: 761 (30.0)
309 (12.2)
93 (3.7)
57 (2.2)315 (12.4)
S: 645 (25.4)
L: 772 (30.4)
S: 432 (17.0)
L: 559 (22.0)406 (16.0)
376 (14.8)
264 (10.4)
32 (1.3)
15 (0.6) 103 (4.1)
57 (2.2)
167 (6.6)
12˚
80˚
S: 642 (25.3)
L: 746 (29.4)
215 (8.5)
470 (18.5)
mm (in)
Maintenance specifications 

SPECSpecifications
2-769M3E11
Clamp bracket
S69M2020
69 (2.7) 69 (2.7)
56 (2.2) 56 (2.2)
40 (0.2)
143.7 (5.7)
21.8 (0.9)
58 (2.3)mm (in) 

69M3E112-8
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Tightening torques2
Specified torques
Part to be tightened Thread sizeTightening torques
N·mkgf·mft·lb
Power unit
Anode screw M5 2.0 0.2 1.5
Choke knob nut—3.5 0.4 2.6
Connecting rod cap1st 
M65.0 0.5 3.7
2nd 9.0 0.9 6.6
Crankcase bolt1st
M65.0 0.5 3.7
2nd 11 1.1 8.1
Cylinder head bolt1st
M814 1.4 10.3
2nd 30 3.0 22.1
Cylinder head cover bolt1st
M65.0 0.5 3.7
2nd 12 1.2 8.9
Drive shaft oil seal housing bolt M8 18 1.8 13
Exhaust probe bolt M8 20 2.0 14.8
Flywheel magnet nut—44...

SPECSpecifications
2-969M3E11
General torques
This chart specifies tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifications
for special components or assemblies are
provided in applicable sections of this man-
ual. To avoid warpage, tighten multi-fastener
assemblies in a crisscross fashion and pro-
gressive stages until the specified torque is
reached. Unless otherwise specified, torque
specifications require clean, dry threads. 
Components should be at...

69M3E11
CHK 
ADJ
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Periodic checks and adjustments
Special service tools ..................................................................................... 3-1
Maintenance interval chart ............................................................................ 3-2
Fuel system .................................................................................................... 3-3
Checking the fuel line ...................................................................................

CHK 
ADJ
Periodic checks and adjustments
3-169M3E11
Special service tools3
Digital tachometer
90890-06760
Timing light
90890-03141
Leakage tester
90890-06840 

69M3E113-2
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Maintenance interval chart3
Use the following chart as a guideline for general maintenance.
Adjust the maintenance intervals according to the operating conditions of the outboard motor.
NOTE:
The engine should be flushed with fresh water after operating in salt, turbid, or muddy water.
If leaded gasoline is used regularly, check the engine valves and related parts every 100 hours of
operation in addition to the items in the maintenance interval chart.Item RemarksInitial...

CHK 
ADJ
Periodic checks and adjustments
3-369M3E11
Fuel system3
Checking the fuel line
1. Check the fuel tank 1
 for leaks. Replace
if necessary. Also, check the fuel hose 2
for leaks and deterioration, and the car-
buretor 3
 and fuel cock for leaks.
Replace if necessary.
Checking the fuel filter
1. Check the fuel filter for dirt or residue.
Clean with straight gasoline and replace
the filter if necessary.
Power unit3
Checking the engine oil
1. Place the outboard motor in an upright
position.
2. Check...

69M3E113-4
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Changing the engine oil
1. Remove the oil filler cap 1
.
2. Place a drain pan under the drain hole,
and then remove the drain bolt 2
 and let
the oil drain completely.
NOTE:
Be sure to clean up any oil spills.
3. Install the drain bolt 2
, and then tighten
it to the specified torque.
4. Pour the specified amount of the recom-
mended engine oil into the oil filler hole.5. Install the oil filler cap, and then start the
engine and warm it up for 5 minutes.
6. Turn the engine...

CHK 
ADJ
Periodic checks and adjustments
3-569M3E11
3. Slowly pull the starter rope to set the pis-
ton position to TDC of the compression
stroke.
NOTE:
Make sure that the rocker arms 7
 are not
pushing the intake valve 8
 and exhaust
valve 9
.
Check the position of the piston from the
spark plug installation hole 0
.
Do not turn the flywheel magnet counter-
clockwise.
4. Check the valve clearance. Adjust if out
of specification.
NOTE:
Check the valve clearance when the engine
is cold.
Note the...