Yamaha EF7000 Service Manual page 23

PERIODIC MAINTENANCE/LUBRICATION INTERVALS
*1····· Initial replacement of the engine oil is after one month or 20 hours of operation.
*2····· The air filter element needs to be cleaned more frequently when using in unusually wet or
dusty areas.
····· Since these items require special tools, data and technical skills, have a Yamaha dealer per-
form the service.
2-2
CHK
ADJ
2