Yamaha YS928J Owner's Manual page 46

PERIODIC MAINTENANCE
Item
Transmission
Ignition system
Battery
Motor unit
Lubricating system
Fuel system
Muffler
Chassis and
moving parts
Any troubles noticed when previously operating
the Snowblower.
Routine
• Oil level
* • Oil leakage
• Checking the spark
plug
• Fluid level and specific
*
gravity
• Electric starter working
conditions
• Engine starting condi-
tions and abnormal
noise
• Measurement of rated
* engine idle and operat-
ing speed
• Exhaust conditions
* • Compression pressure
* • Valve clearance
• Removal of carbon
*
from cylinder head
* • Oil leakage
• Engine oil level
• Engine oil change
* • Fuel leakage
• Carburetor throttle
* valve and choke valve
conditions
• Carburetor adjustment
*
conditions
• Fuel level
* • Fuel hose replacement
• Check mounting for
*
looseness
* • Muffler condition
• Damage, including
*
cracks, and loose parts
• Lubricating each part
Pre- Initial
opera-
1
tion
month
check
– 42 –
Every
Remarks
6 12
months months
Every 4
years