Why does my YZ125 keep fouling plugs?

The most common reasons why your dirt bike has a fouled spark plug are because a dirty air filter, improper pre-mix ratio, carb jetting is too rich, the engine has low compression, or a weak spark.

Why are the piston flakes on my car too hot?

The black too hot. The main reasons for this problem are failure. engine has run hot. The ash color is actually piston flakes. If this engine was run any longer, it probably exhaust side and failed. The main causes of this problem fuel’s octane, or a general overheating problem. head. This engine had a corresponding damage pattern

What causes a piston to crack on a MX bike?

In most cases the top of the cylinder and the occurs. Most mx bikes have head stays mounting the head to the frame. Over time the head can become mount. It’s important to check for warpage of the head every time you rebuild the top end. cylinder clearance was too great. When the piston is cracks and eventually shatters.

What causes a piston to seize on a piston?

The main causes for this (main jet), or too hot of a spark plug range. vertical seizure marks around the circumference. This the piston. As soon as the engine started and the piston against the cylinder walls and seized. The optimum cylinders vary greatly. For example a 50cc composite need between .0055 to .0075 inches. For the best manual.

What happens when you have two stroke piston failure?

Piston Failures/Causes Two Stroke Piston Diagnosis The process of examining a used piston can tell a mechanic helpful information on the condition of an engine. When an engine failure occurs, the piston is likely to take the brunt of the damage. A careful examination of the piston can help a mechanic trace the source of a mechanical or tuning …

What causes a piston to burn out on a car?

If the turbo system has been can handle, causing the fuel mixture to lean out and burn the piston. injector. If an injector is not spraying enough fuel into the damage. codes and to look at fuel trim values.

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