Maintenance Interval Chart - Yamaha F25C Service Manual

Maintenance interval chart

Use the following chart as a guideline for general maintenance.
Adjust the maintenance intervals according to the operating conditions of the outboard motor.
Item
Anode (external)
Anodes (internal)
Cooling water passages
Top cowling
Fuel filter (can be disassembled)
Fuel system
Fuel tank
(Yamaha portable tank)
Gear oil
Lubrication points
Engine idle speed
(carburetor models)
Propeller and cotter pin
Shift link/shift cable
Thermostat
Throttle link/throttle cable/
throttle pick-up timing
Water pump
Engine oil
Oil filter (cartridge)
Spark plug(s)
Timing belt
Valve clearance (OHC)
NOTE:
• When operating in salt water, turbid or muddy water, the engine should be flushed with clean
water after each use.
• When using lead or high-sulfur gasoline, checking valve clearance may be required more fre-
quently than every 100 hours.
Item
Timing belt
6D55F11
Special service tools / Maintenance interval chart
Remarks
10 hours
(1 month)
Check/replace
Check/replace
Clean
Check
Check/replace
Check
Check/clean
Change
Lubricate
Check/adjust
Check/replace
Check/adjust
Check
Check/adjust
Check
Check/change
Replace
Clean/adjust/
replace
Check/replace
Check/adjust
Remarks
500 hours (2.5 years) 1,000 hours (5 years)
Replace
Initial Every
50 hours 100 hours
(3 months) (6 months)
Every
3
1
200 hours
(1 year)
2
3
4
5
6
7
8
9
3-2