Break-In - Yamaha VK540V Owner's Manual

2. Turn the main switch to the "ON" position.
1 "ON"
3. Pull slowly on the recoil starter until it is engaged,
then pull it smoothly but forcefully. After the engine
starts, put the starter lever (choke) in the half-open
position. Warm up the engine until it runs smoothly
and does not begin to stall when the starter lever is
returned to the closed position.
TIP
● When the ambient temperature is below -25 °C (-13 °F),
be sure to thoroughly warm up the engine before start-
ing off.
●
Do not put an excessive load on the engine while the
engine is being warmed up.
ESU01260

Break-in

There is never a more important period in the life of your
snowmobile than the break-in period. For the first
10 hours, approximately 200 km (125 mi), do not put an
excessive load on the engine. Avoid prolonged full throt-
tle operation.
Also avoid lugging the engine, such as laborious opera-
tion in wet snow. If any abnormal condition is noticed,
such as excessive vibration or noise, consult a Yamaha
dealer.
TIP
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To ensure proper engine break-in, use a 50:1 gasoline/oil
mixture when filling the fuel tank of a new snowmobile for
the first time.
For example:
10 L of gasoline per 0.2 L of oil (1 gal of gasoline per
2.6 oz of oil) equals a 50:1 mixing ratio.
(See pages 6-1–6-2 for the recommended gasoline and
oil.)
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