Engine Break-In; Parking - Yamaha YFM50RY Owner's Manual

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Engine break-in

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TIP
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For ATVs equipped with an odometer or an hour
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meter, follow the figures given in km (mi) or the
figures given in hours.
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G
For ATVs not equipped with an odometer or
hour meter, follow the figures given in hours.
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There is never a more important period in the life of
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your engine than the first 320 km (200 mi) or 20
hours of riding. For this reason, you should read
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the following material carefully.
Since the engine is brand new, do not put an ex-
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cessive load on it for the first 320 km (200 mi) or 20
hours. The various parts in the engine wear and
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polish themselves to the correct operating clear-
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operation or any condition that might result in en-
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gine overheating must be avoided.
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0–160 km (0–100 mi) or 0–10 hours
Avoid prolonged operation above 1/2 throttle. Vary
the speed of the ATV regularly. Do not operate it at
one set throttle position.
160–320 km (100–200 mi) or 10–20 hours
Avoid prolonged operation above 3/4 throttle. Rev
the engine freely, but do not use full throttle at any
time.
320 km (200 mi) or 20 hours and beyond
The ATV can now be operated normally.
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NOTICE
If any engine trouble should occur during the
engine break-in period, immediately have a
Yamaha dealer check the ATV.
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Parking

When parking the ATV, stop the engine, shift the
drive select lever into the drive position, apply the
parking brake, and then turn the fuel cock to "OFF".
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