fuel filter YAMAHA YFM80R 2002 Owners Manual

8-7
EBU00262PERIODIC MAINTENANCE/LUBRICATION
INITIAL EVERY
ITEM ROUTINE 1 3 6 6 1
month months months months year
Valves*9Check valve clearance.
9Adjust if necessary.2 222
Cam chain*9Check chain tension.
9Adjust if necessary.2 222
9Check condition.
Spark plug9Adjust gap and clean.22222
9Replace if necessary.
Air filter element9Clean. Every 20 ~ 40 hours.
9Replace if necessary. (more often in wet or dusty areas)
Carburetor*9Check idle speed/choke lever operation.
2222
9Adjust if necessary.
Crankcase breather9Check breather hose for cracks or damage.
system*9Replace if necessary.222
9Check for leakage.
Exhaust system*9Retighten if necessary.222
9Replace gasket if necessary.
Fuel line*9Check fuel hose for cracks or damage.
222
9Replace if necessary.
Engine oil9Replace (warm engine before draining).2 222
Final gear oil9Check oil level/oil leakage.
22
9Replace every 12 months.
Brakes*9Check operation.
22222
9Adjust if necessary.
5TH-9-60 8 9/25/01 5:50 PM Page 8-7

EBU00440Troubleshooting chart1. FuelCheck if there is
fuel in the fuel
tank2. CompressionUse electric starter
to see if there is
compression3. IgnitionRemove plug and
check electrodes
Wet
Wipe clean with dry
cloth
Dry
Attach plug cap and
ground to chassis
Use electric
starter
Spark weakSpark good
Ignition system normal
No spark
Ask a Yamaha dealer to inspect
Adjust plug gap or
replace plug
There is compresson
Compression normalAsk a Yamaha dealer to inspect
No compression
There is fuel
Turn the fuel
cock to “OFF”Remove the
fuel hose from
the fuel cock.
Some fuel
Turn the fuel
cock to “RES”
Restart engine
No fuel
Supply fuel
4. BatteryUse electric
starter
Engine turns
over quickly
Battery good
Engine turns
over slowly
Check fluid, recharge,
check connections
Check fuel flow
Water or dirt
mixed in fuelTurn the fuel
cock to “ON”
No fuel
Fuel cock clogged
Clean the fuel filter
and the fuel tank
Clean fuel cock
8-73
5TH-9-60 8 9/25/01 5:50 PM Page 8-73

10-3
Model YFM80W
Final gear oil:
Type SAE 80API “GL-4” Hypoid gear oil
Quantity:
Total amount 0.12 L
Air filter: Wet type element
Fuel:
Type Regular gasoline
For Europe: Regular unleaded gasoline
For Australia: Unleaded fuel only
Tank capacity 6.8 LReserve amount 0.9 L
Carburetor:Type/manufacturer VM16SH/MIKUNI
Spark plug:
Type/manufacturer CR7HS/NGKGap 0.6 ~ 0.7 mm
Clutch type: Wet, multiple-disc automatic
5TH-9-60 9~ 9/25/01 4:28 PM Page 310