Views: 23 Author: Site Editor Publish Time: 2026-02-18 Origin: Site
I. Problem Overview
- The engine starting motor frequently fails, and users generally believe it is a quality issue. In reality, usage habits have a significant impact on the motor's lifespan.
II. Starting Motor Parameters
- The current is high at the moment of startup, ranging from tens of amperes to one or two hundred amperes for small gasoline and diesel engines.
- The motor coil is under immense stress from the high current and is prone to overheating after several startup attempts.
III. Improper Usage Habits
- Holding the key in the start position for an extended period, causing the motor to endure high current for too long.
- Improper operation, such as failing to follow standard procedures when starting a diesel engine.
- Insufficient capacity of the small battery, high internal resistance leading to a significant voltage drop, increased current, coil heating, and easy burnout.
IV. Standard Operating Procedures
- Each startup attempt should not exceed 3 seconds.
- The interval between two startup attempts should be at least 2 minutes to allow the coil to cool down.
- When starting a diesel engine, the decompression handle (if available) must be pressed to avoid starting under load.
- Battery selection recommendations:
- Gasoline engine: battery above 14 Ah.
- Diesel engine: battery above 20 Ah.
- Twin-cylinder gasoline engines and diesel engines: battery above 30 Ah.
