💨 Blue Smoke vs. White Smoke: An Exhaust-Based Diagnostic Guide for Small Engines

When you fire up your lawn mower, snow blower, or trimmer, the exhaust pipe tells a story.¹ While a puff of vapor on a cold morning is normal, persistent, colored smoke is your engine sending a distress signal.

For small engines, the color of the smoke can quickly diagnose a problem, saving you from a costly guessing game. This is your essential guide to decoding what those plumes mean for your 2-stroke and 4-stroke equipment.