Yamaha Generators Pakistan | Periodic Maintenance

● EF5200EFW

MAINTENANCE CHART

Warning
Stop the engine before starting maintenance work.

*1 Initial replacement of the engine oil is after one month or 20 hours of operation.

*2 The air filter element needs to be replaced more frequently when
using in unusually wet or dusty areas.

o Since these items require special tools, data and technical skills,
have a Yamaha dealer perform the service.

Caution
Use only Yamaha specified genuine parts for replacement. Ask an authorized Yamaha dealer for further attention.

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ENGINE OIL REPLACEMENT
1. Place the machine on a level surface and warm up the engine for several minutes. Then stop the engine.

2. Remove the oil filler cap.

3. Place an oil pan under the engine. Remove the oil drain plug so that the oil
can be completely drained.

4. Check the drain plug, gasket, oil filler cap and O-ring. If damaged, replace.

1 Oil drain plug
2 Gasket
3 O-ring

5. Reinstall the oil drain plug.

Drain Plug Torque:
30 N•m (3.0 kgf•m, 22 lbf•ft)

6. Add engine oil to the upper level.
4 Upper level

Recommended oil: A- SAE #30	or 10W-30 or 10W-40
B- SAE #20	or 10W-30 or 10W-40
C- SAE 10W	or 10W-30 or 10W-40
Above 35°C (95°F): SAE #40 Engine oil quantity: 1.1 L (0.97 lmp qt)

Note:
Recommended engine oil classification:
API Service “SE” or “SF”.

Caution:
Be sure no foreign material enters the crankcase.

7. Install the oil filler cap.

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OIL WARNING LIGHT (RED)
When the oil level falls below
the lower level, the engine
stops automatically. Unless you
refill with oil, the engine will not
start again.

Note
If the engine stalls or does not
start, turn the engine switch to
“ON” position and then pull the
recoil starter. If the oil warning
light flickers for a few seconds,
the engine oil is insufficient.
Add oil and restart.

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SPARK PLUG INSPECTION

The spark plugs are important engine
components, which should be checked periodically.

1. Remove the spark plug cap and the spark plug.

2. Check for discoloration and
remove the carbon.

Standard electrode color:
Tan Color

3. Check the spark plug type
and gap.

Standard Spark Plug:
BPR4ES (NGK)
a Spark Plug Gap:
0.7 – 0.8 mm
(0.028 – 0.031 in)

Note:
The spark plug gap should be
measured with a wire thickness
gauge and, if necessary, adjusted
to specification.

4. Install the spark plug.

Spark Plug Torque:
20 N•m (2 kgf•m, 14 lbf•ft)

Note:
If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4-1/2 turn past finger tight. However, the spark plug should be tightened to the specified
torque as soon as possible.

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TROUBLESHOOTING
Engine won’t start
1. Fuel systems
No fuel supplied to combustion chamber.

o No fuel in tank .... Supply fuel.

o Fuel in tank .... Open fuel cock.

o Clogged fuel line .... Clean fuel line.

o Foreign matter in fuel cock .... Clean fuel cock.

o Clogged carburetor .... Clean carburetor.

2. Engine oil system Insufficient

o Oil level is low .... Add engine oil.

3. Electrical systems

o Engine switch to “ON”.
A- EF5200DFW/EF5200FW
B- EF5200DE/EF5200EFW

Poor spark

o Spark plug dirty with carbon or wet .... Remove carbon or wipe spark plug dry.

o Faulty ignition system .... Consult dealer.

4. Compression Insufficient

o Worn out piston and cylinder
.... Consult dealer.

o Loose cylinder head nuts ....
Tighten nuts properly.

o Damaged gasket .... Replace
gasket.

Generator won’t produce power

o Safety device (AC) to “OFF” .... Turn the AC switch (N.F.B.) to “ON”.

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ENGINE OIL
Make sure the engine oil is at
the upper level of the oil filler
hole. Add oil as necessary.

1 Upper level

Recommended oil:
A- YAMALUBE 4 (10W-30)	or SAE 10W-30 type SE motor oil
B- SAE #30	or 10W-30 or 10W-40
C- SAE #20	or 10W-30 or 10W-40
D- SAE 10W	or 10W-30 or 10W-40
Above 35°C (95°F): SAE #40 Engine oil quantity: 1.1 L (0.97 lmp qt)

Note
Recommended engine oil classification:
API Service “SE” or “SF”.

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FUEL

Warning
o Fuel is highly flammable and poisonous. Check “SAFETY INFORMATION” (See page 7) carefully
before refueling.

o Do not fill above the top of the fuel filter or it may overflow when the fuel heats up later and expands.

o Wipe up any spilled fuel immediately.

o After refueling, make sure the tank cap is tightened securely.

Caution
o Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel may deteriorate painted surfaces or plastic parts.

o Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts.
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Make sure there is sufficient
fuel in the tank.

Recommended fuel:
Unleaded gasoline
Fuel tank capacity:
Total:
25.0 L (5.50 lmp gal)

1 Fuel level gauge

“F”	Full
“E”	Empty