Ryobi 990r - Manual (Page 15)

15
FREQUENCY MAINTENANCE REQUIRED REFER TO:
Daily or
Before
Starting
Engine
Every
10 Hours
Change oil after initial use.
Clean and re-oil air filter. Page 11
Page 18
Every
25 Hours
Change oil. Pages 10-11
MAINTENANCE SCHEDULE
These required maintenance procedures should be performed at the frequency stated in the
table. They should also be included as part of any seasonal tune-up.
Fill fuel tank.
Check oil level. Page 11
Pages 10-11
MAINTENANCE AND REPAIR INSTRUCTIONS
Every
50 Hours
Check spark plug condition and gap.
Check rocker arm to valve clearance.
Check spark arrester screen. Page 22
Page 22
Page 21