Oil Pressure Warning Light

A few four stroke motorcycles and ATVs are fitted with oil pressure gauges that display the exact oil pressure while the engine is running, but not many. Most four stroke motorcycles and ATVs are fitted with a simple light (almost always red) on the instrument cluster that comes on when there is insufficient oil pressure. This oil pressure warning light is also known as one of the “idiot lights” (along with the neutral light, high beam indicator light and the turn signal indicator light) to let you know something is seriously wrong and you need to immediately shut off the engine to avoid damage. Yamaha four stroke motorcycles and ATVs use an oil level light instead of an oil pressure light which comes on when the engine oil is about a quart low.