2001 YAMAHA YFM600FWA check engine

8-23
j. Fill the engine with oil and install the oil
filler cap.
CAUTION:
Be sure no foreign material enters the crank-
case.
k. Warm up the engine for several min-
utes at idle speed. Check for oil leak-
age while warming up.
CAUTION:
If oil leakage is found, stop the engine immedi-
ately and check for the cause.Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change:
1.9 L
With oil filter replacement:
2.0 L
Total amount:
2.6 L

8-43
8. Reinstall the element to the element
guide.
9. Reinstall the element assembly and parts
removed for access.
NOTE:
The air filter element should be cleaned every
20 ~ 40 hours. It should be cleaned and lubri-
cated more often if the machine is operated in
extremely dusty areas. Each time filter element
maintenance is performed, check the air inlet
to the filter case for obstructions. Check the air
cleaner rubber joint to the carburetor and man-
ifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of
unfiltered air entering the engine.
CAUTION:
Never operate the engine with the air filter el-
ement removed. This will allow unfiltered air
to enter, causing rapid engine wear and possi-
ble engine damage. Additionally, operation
without the filter element will affect carbure-
tor jetting with subsequent poor performance
and possible engine overheating.

8-87
EBU00440
Troubleshooting chart
1. Fuel
Check if there is fuel
in the fuel tank.Enough fuelTurn the fuel
cock to “OFF”.Remove the fuel pipe
from the fuel cock. No fuelFuel cock
clogged
Clean fuel
cock. Some fuelTurn the fuel
cock to “RES”.Restart engine.
No fuel
Supply fuel
2. Compression
Use the electric
starter to see if there
is compression.Compression
Compression normal
No compression
Ask a Yamaha dealer to inspect.
3. Ignition
Remove the plug and
check the electrode.WetWipe clean with
dry cloth.
DryAttach plug cap and
ground to chassis.Use the
electric starter.Spark goodIgnition system
normal
Spark weak
Adjust plug gap
or replace plug. No spark
Ask a Yamaha dealer to inspect. 4. Battery
Use the electric
starter.Engine turns over
quickly.Battery good
Engine turns over
slowly.
Recharge, check
connections.
Check fuel
flow Turn the fuel
cock to “ON”.