Yamaha 25BMH 30HMH Factory Service Manual, Page 104Get this manual
CHK ADJ MAINTENANCE INTERVAL CHART
MAINTENANCE INTERVAL CHART
Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelinesThe mark () indicates the check-ups which maybe carried out by ownerThe mark (:) indicates work to be carried out by Yamaha dealerInitial Item FUEL SYSTEM Fuel filter Fuel system Fuel tank POWER UNIT Carburetor setting Remarks Every 50 hours 100 hours 200 hours 10 hours (3 months) (6 months) (1 year):::::::::Refer page
Clean Check Clean
3-3 3-2 3-16 3-16 3-4 3-4 3-16 3-16 3-20 3-23 3-22 3-22 3-22 3-24 3-24 3-22