Yamaha Motor University Practice Exam 2026 - Free Practice Questions and Expert Study Guide

Maintaining an oil level display in an oil-injected two-stroke motor is crucial primarily because it ensures proper oil supply for lubrication. In two-stroke engines, adequate lubrication is vital due to the engine design, which exposes components to high levels of wear from the rapid combustion cycle. The oil-injection system delivers oil directly to the engine, reducing friction and protecting internal parts from heat and damage. An accurate oil level display allows users to monitor the oil supply, preventing situations where insufficient oil could lead to engine seizure or failure due to inadequate lubrication. Thus, keeping the oil level in check is fundamental for the operational health and longevity of the engine.