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Troubleshooting the power unit
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Symptom 1: Limited engine speed (below 2000–3000 r/min).
Symptom 1: Discharged battery.
Symptom 2
Cause
Checking step
See
page
Buzzer comes on
Overheat alert
indicator comes on
Thermoswitch malfunction
Measure the thermoswitch input voltage.
Check the thermoswitch for continuity.
Check for continuity between the ther-
moswitch and the engine ECM.
Clogged cooling water inlet
Check the cooling water inlet.
Water pump malfunction
Check the impeller.
Check the Woodruff key.
Check the water pump housing.
Check the insert cartridge.
Check the outer plate cartridge.
Clogged cooling water pas-
sage
Check the cooling water passage.
Thermostat malfunction
Check the thermostat.
Buzzer comes on
Oil pressure alert indica-
tor comes on
Insufficient engine oil
Check the engine oil.
Check the engine oil leakage.
Check the valve seals and valves.
Check the piston rings.
—
Measure the oil pressure.
Engine oil pressure decrease
Check the oil pump.
Check the oil strainer.
Check the oil passage (power unit and
oil pump).
Replace the oil filter.
Symptom 2
Cause
Checking step
See
page
—
Battery performance decrease Check the battery capacity and specific
gravity.
Check that the battery cables and termi-
nals are connected properly.
—
Short, open, or loose connec-
tion in charging circuit
Check that the charging circuit is con-
nected properly, and that there is no
damage.
Stator assembly malfunction
Measure the lighting coil output peak
voltage.
Measure the lighting coil resistance.
Rectifier Regulator malfunction Measure the Rectifier Regulator output
peak voltage.
Check the Rectifier Regulator for conti-
nuity.
Содержание F225F
Страница 1: ...SERVICE MANUAL 6CE 28197 3N 11 F L 225F F L 250D F L 300B ...
Страница 4: ......
Страница 54: ...1 31 SPEC Specification MEMO ...
Страница 89: ...2 34 Lower unit 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 116: ...3 25 RIG GING Rigging information SET MENU CANCEL a b b c c c D q e E p v w o v C m h A B D D A B D D D F B ...
Страница 218: ...5 55 ELEC Electrical system 2 Connect the Y COP coupler a Y COP input voltage Red R Ground 12 0 V battery voltage R B a ...
Страница 254: ...6 19 FUEL Fuel system 3 Install the blowby hose f 4 Connect the air temperature sensor coupler a f a ...
Страница 263: ...6 28 Canister 0 1 2 3 4 5 6 7 8 9 10 A j k f b ...
Страница 267: ...6 32 Low pressure fuel pump 0 1 2 3 4 5 6 7 8 9 10 A 11 Fasten the vapor gas hoses p and q using the holder r q r p ...
Страница 296: ...7 13 Power unit POWR 21 Install the tube retainer H and then fasten it using the plastic tie I I H H ...
Страница 319: ...7 36 Shift actuator 0 1 2 3 4 5 6 7 8 9 10 A Shift actuator bolts d 19 N m 1 9 kgf m 14 0 ft lb c b d d a ...
Страница 477: ...8 98 Shimming counter rotation model 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 493: ...9 14 Upper case and mount 0 1 2 3 4 5 6 7 8 9 10 A Lower mount bracket bolt o 55 N m 5 5 kgf m 40 6 ft lb t u v t v u o ...
Страница 537: ...9 58 PTT cylinder 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 562: ...A 1 MEMO ...
Страница 565: ......
Страница 566: ...May 2010 1 ABE E_1 YAMAHA MOTOR CO LTD ...
Страница 576: ...A 13 ...