Backfiring through the carburetor is a sign of lean combustion, timing problems, or valve issues. Learn the most common causes and how to fix them safely.
A gas leak that appears only when the engine is running points to pressure‑side fuel system failures. Learn the most common causes and how to fix them safely.
Fuel starvation under load is one of the most common small engine problems. Learn the exact causes and fixes, from clogged jets to tank venting issues.
Mower blades that won’t stay engaged usually point to belt issues, PTO problems, or safety switch failures. This guide shows you how to diagnose and fix it fast.
Fuel delivery failures are the #1 cause of small engine problems. This guide covers clogged carburetors, blocked filters, failing pumps, stale fuel, vacuum leaks, and how to diagnose each one.
Small engines leak when seals wear out, tanks crack, fittings loosen, or breathers clog. This guide explains how to identify oil, fuel, and fluid leaks and what causes each one.
Strange engine behavior—surging, hesitation, random stalling, odd noises, or inconsistent performance—usually points to fuel, ignition, airflow, or mechanical issues. This guide explains how to diagnose unusual symptoms step‑by‑step.
Small engines lose power under load when fuel flow is restricted, the carburetor is dirty, blades are dull, ignition is weak, or compression is low. This guide explains how to diagnose each cause.
Small engines run rough when the carburetor is dirty, the spark plug is weak, fuel is stale, or airflow is restricted. This guide covers the top causes and how to diagnose each one.
Smoke color and engine smells reveal exactly what’s wrong. White, blue, or black smoke—and burning, fuel, or chemical odors—each point to specific failures. This guide explains what they mean.