BTEB Motorcycle Servicing Practice Questions - BTEB National Skill Certificate - Motorcycle Servicing Exam

Why do most two-stroke motorcycle engines require oil to be mixed with the petrol or injected into the intake?

To increase the octane rating of the fuel To lubricate the crankshaft, bearings and cylinder since there is no separate oil sump circulation To cool the exhaust gases To raise the fuel's flash point

Correct Answer:

To lubricate the crankshaft, bearings and cylinder since there is no separate oil sump circulation

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