Maintenance – Ryobi RYI2011T User Manual
Page 20
 
16 — English
MAINTENANCE SCHEDULE
NOTE: If a separate engine manual is provided for this generator, please follow the maintenance schedule provided in the 
engine manual instead of the maintenance information listed below.
Before
each use
After 1st month
or 10 hours of
operation
Every 3 months
or 50 hours of
operation
Every 6 months
or 100 hours
of operation
Every year or
after 300 hours
of operation
Check Engine Lubricant
Change Engine Lubricant
Check Air Filter
Clean Air Filter
2
Change Air Filter
2
Check/Adjust Spark Plug
Replace Spark Plug
2
Check/Adjust Valve 
Clearance
1,2
Clean Fuel Tank and 
Filter
1
Check Fuel Tube
1. These items should only be carried out by an authorized service center.
2. See engine manual for maintenance schedule for this item.
NOTE: Maintenance should be performed more frequently when generator is used in dusty areas. When generator has 
exceeded the maximum figures specified in the table, maintenance should still be cycled according to the intervals of 
time or hours stated herein.
MAINTENANCE