Yamaha RSG90W Owner's Manual download pdf (Page 46)

7-2

ESU00380

Break-in

There is never a more important period in the life of your

engine than the period between 0 and 500 km (300 mi).

For this reason, you should read the following material

carefully.

Since the engine is brand new, do not put an excessive

load on it for the first 500 km (300 mi). The various parts

in the engine wear and polish themselves to the correct

operating clearances. During this period, prolonged full-

throttle operation or any condition that might result in

engine overheating must be avoided.

Operating your snowmobile for the first time

Start the engine and let it idle for 15 minutes.

0–160 km (0–100 mi)

Avoid prolonged operation above 6,000 r/min.

160–500 km (100–300 mi)

Avoid prolonged operation above 8,000 r/min.

500 km (300 mi) and beyond

The snowmobile can now be operated normally.

CAUTION

●

After 800 km (500 mi) of operation, the engine oil

must be changed and the oil filter cartridge

replaced.

●

If any engine trouble should occur during the

engine break-in period, immediately have a

Yamaha dealer check the snowmobile.

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Yamaha RSG90W Owner's Manual Page 46