POWR
Power unit
5-9
60C5D11
21. Install the cover and flywheel magnet
cover.
Checking the compression pressure
1.
Start the engine, warm it up for 5 min-
utes, and then turn it off.
2.
Remove the clip from the engine shut-off
switch on the remote control box or tiller
handle.
3.
Remove the cover and all spark plugs,
and then install the special service tools
to each spark plug hole.
CAUTION:
Before removing the spark plugs, well to
clear out any dirt or dust that may fall into
the cylinder.
4.
Fully open the throttle, crank the engine
until the reading on the compression
gauge stabilizes, and then check the
compression pressure.
5.
If the compression pressure is below
specification and the compression pres-
sure for each cylinder is unbalanced, add
a small amount of engine oil to the cylin-
der, and then check the pressure again.
NOTE:
• If the compression pressure increases,
check the piston and piston rings for wear.
Replace if necessary.
• If the compression pressure does not
increase, check the valve clearance, valve,
valve seat, cylinder sleeve, cylinder head
gasket, and cylinder head. Adjust or
replace if necessary.
Checking the oil pressure
1.
Start the engine, warm it up for 5 min-
utes, and then turn it off.
2.
Remove the flywheel magnet cover and
oil pressure switch, and then install an oil
pressure gauge
1
to the oil pressure
switch installation hole.
NOTE:
Use a pressure gauge with an adapter that
has a 1/8 pitch thread.
3.
Check the oil pressure. Check the oil
pump, oil suction pipe, and oil strainer if
out of specification.
Compression gauge
1
:
90890-03160
Compression gauge adapter
2
:
90890-06563
Minimum compression pressure:
670 kPa (6.7 kgf/cm
2
, 95.3 psi)
S60C5040
Oil pressure:
520 kPa (5.2 kgf/cm
2
, 74 psi) at
idle speed (850 r/min)
Содержание F100C
Страница 1: ...SERVICE MANUAL 60C 28197 5D 11 290429 F100B F100C ...
Страница 52: ...SPEC Specifications 2 17 60C5D11 MEMO ...
Страница 162: ...LOWR Lower unit 6 15 60C5D11 Drive shaft and lower case F100B 6 ...
Страница 172: ...LOWR Lower unit 6 25 60C5D11 Shimming F100B 6 T3 B4 59 0 A3 A1 B2 T2 15 8 A2 34 0 B1 T1 F R P B3 S60C6305 ...
Страница 190: ...LOWR Lower unit 6 43 60C5D11 Drive shaft and lower case F100C 6 ...
Страница 200: ...LOWR Lower unit 6 53 60C5D11 Shimming F100C 6 ...
Страница 209: ...60C5D11 7 2 1 2 3 4 5 6 7 8 9 MEMO Special service tools ...
Страница 210: ...BRKT Bracket unit 7 3 60C5D11 Tiller handle 7 ...
Страница 212: ...BRKT Bracket unit 7 5 60C5D11 ...
Страница 214: ...BRKT Bracket unit 7 7 60C5D11 ...
Страница 244: ...BRKT Bracket unit 7 37 60C5D11 Gear pump F100B 7 ...
Страница 321: ...62Y5A11 TRBL SHTG 1 2 3 4 5 6 7 8 9 Troubleshooting Power unit 9 1 Bracket unit 9 11 Electrical systems 9 15 ...
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Страница 344: ...YAMAHA MOTOR CO LTD Printed in the Netherlands Jun 2001 0 5 1 CR F100BET F100CET E ...