Yamaha F400A 2022 - Maintenance Interval Chart

10-1
Outline
Outline
• To obtain long product life, Yamaha strongly recommends that the specified periodic checks and
maintenance be performed according to the maintenance interval charts.
• If replacement parts are necessary, use only genuine Yamaha parts of equivalent design and quality.
Any parts of inferior quality may cause a malfunction, and the resulting loss of control could endan-
ger the operator and passengers. Yamaha genuine parts and accessories are available from Yamaha
dealers.
• The service intervals provided in the maintenance interval charts are based upon “typical” operating
conditions that include speed variations, sufficient time for engine warm up and cool-down, medium
to light load, and an average cruising speed in the 3000–4000 r/min range. If your normal operating
conditions are more intensive, more frequent servicing will be required, especially the engine oil and
gear oil changes. Examples of the intensive operation will be: wide-open-throttle, trolling, or idling
operation for extended periods of time, carrying heavy loads, and frequent starting and stopping or
shifting. In most cases, the frequent maintenance pays off in increased engine life and greater owner
satisfaction.
• The maintenance cycle on these charts is based on usage of 100 hours per year and regular flushing
of the cooling water passages. Adjust the maintenance frequency when operating the engine under
adverse conditions, such as extended trolling.
• Disassembly or repairs may be necessary depending on the outcome of maintenance checks.
• Expendable or consumable parts and lubricants will lose their effectiveness over time and through
normal usage regardless of the warranty period.
• When operating the outboard motor in salt water, or in muddy, turbid (cloudy), or acidic water, flush
the engine using clean water after each use.
Maintenance interval chart 1
The “” symbol indicates the check-ups which the owners or operators may carry out themselves.
The “” symbol indicates work to be carried out by a Yamaha dealer.
Item Actions
Initial Every
See
20
hours
(3
months)
100
hours
(1 year)
300
hours
(3
years)
500
hours
(5
years)
Anode(s) (external)
Inspection or replace-
ment as necessary
/
8-6
9-43
Battery (electrolyte lev-
el, terminal)
Inspection //
10-9
Battery (electrolyte lev-
el, terminal)
Fill, charging or replac-
ing as necessary

Cooling water leakage
Inspection or replace-
ment as necessary
 2-61
Cowling lock lever Inspection / 10-21
Engine starting condi-
tion/noise
Inspection // —
Engine idle speed/
noise
Inspection // 10-9