Yamaha EF7000 - INTRODUCTION; MAINTENANCE INTERVALS CHART

2-1
CHK
ADJ
INTRODUCTION/MAINTENANCE INTERVALS CHART/
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended checks and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable machine opera-
tion and a longer service life. The need for costly overhaul work will be greatly reduced. This infor-
mation applies to machines already in service as well as new machines that are being prepared
for sale. All service technicians should be familiar with this entire chapter.
MAINTENANCE INTERVALS CHART
Proper periodic maintenance is important. Especially important are the maintenance services
related to emissions control. These controls not only function to ensure air filter but are also vital
to proper engine operation and maximum performance.
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
Item Routine
Pre-
operation
check
Every
6 months
or 100 Hr
12 months
or 300 Hr
Spark plug
• Check condition.
√
• Clean and replace if necessary.
Fuel • Check fuel level and leakage.
√
Fuel hose
• Check fuel hose for cracks or dam-
age.
√
• Replace if necessary.
Engine oil
• Check oil level in engine.
√
• Replace.
√ (*1)
Air filter element
• Check condition.
√ (*2)
• Clean.
Muffler screen
• Check condition.
√
• Clean and replace if necessary.
Fuel tank filter • Clean and replace if necessary.
√
Fuel strainer • Clean and replace if necessary.
√
Crankcase breather
hose
• Check breather hose for cracks or
damage.
√
• Replace if necessary.
Cylinder head
• Decarbonize cylinder head.
After every 500 Hrs.
• More frequently if necessary.
Valve clearance • Check and adjust valve clearance.

Idle speed • Check and adjust idle speed.

Recoil starter • Check recoil starter for damage.

Fittings/fasteners
• Check all fittings and fasteners.

• Correct if necessary.
The point where abnormality was recognized by use.
√