67C3K11 3-2
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NOTE:
• When operating in muddy, turbid, or salt water, the engine should be flushed with clean water after
each use.
• When using leaded or high-sulfur gasoline, checking the valve clearances may be required more
frequently than every 500 hours.
Throttle link/throttle cable/
throttle pick-up timing
Check/adjust/
replace
3-8, 3-8
Thermostat Check/replace 3-7
Timing belt Check/replace 3-6
Valve clearance Check/adjust 5-2
Water inlet Check 3-7
Engine start switch/engine
shut-off switch/choke switch
Check/replace 8-13, 8-18,
8-19
Wiring harness connections/
lead coupler connections
Check/replace 8-1
(Yamaha) Meter/gauge Check —
(Yamaha) Fuel tank Check/clean —
Item Remarks
Initial Every
Refer to
page
20 hours
(3 months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Item Remarks
Every Refer to
page
1,000 hours
Exhaust guide/exhaust
manifold
Check/replace 7-20
Timing belt Replace 5-3
Maintenance interval chart
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