Yamaha F70 User Manual

Maintenance
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EMU34446
Maintenance chart 1
TIP:
 Refer to the sections in this chapter for explanations of each owner-specific action.
 The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted 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 in salt water, muddy, other turbid (cloudy), acidic water, the engine should
be flushed with clean water after each use.
The “ ” symbol indicates the check-ups which you may carry out yourself.
The “ ” symbol indicates work to be carried out by your Yamaha dealer.
Item Actions
Initial Every
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
Anode(s) (cylinder
head, thermostat
cover)
Inspection or replace-
ment as necessary
Anodes (exhaust cover,
cooling water passage
cover, Rectifier Regula-
tor cover)
Replacement
Battery (electrolyte
level, terminal)
Inspection
Battery (electrolyte
level, terminal)
Fill, charging or replac-
ing as necessary
Cooling water leakage
Inspection or replace-
ment as necessary
Cowling lock lever Inspection
Engine starting condi-
tion/noise
Inspection
Engine idle
speed/noise
Inspection
Engine oil Replacement
Engine oil filter (car-
tridge)
Replacement
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Yamaha F70 Specifications

Engine Specifications

engine type	16-Valve, SOHC In-Line Four Cylinder
displacement	996 cc
bore x stroke	65 x 75 mm
compression ratio	9.4:1

Power

full throttle rpm range	5300 ~ 6300
horsepower rating	70 hp at 5800 rpm
alternator output	17 Amp

Fuel and Lubrication

recommended fuel	Regular Unleaded (Minimum Pump Octane 87)
ethanol blend limit	10% Maximum
engine oil capacity	2.1 L with filter

Weight and Dimensions

weight	118 kg
degree of trim	-4° through +16°
degree of tilt	65°