Lever type

Lever type starters are one type of manual starter and are started by attaching a detachable lever to the engine and turning it.
Lever type starters are used for small diesel engines.
Because diesel engines have a high compression ratio, they are equipped with a decompression lever to facilitate manual turning of the starter lever when starting.
Decompression levers are designed to push open the exhaust valve or intake valve to release cylinder compression pressure when operated.
This means that if the starting lever is turned while operating the decompression lever, and the decompression lever is then released at a point where momentum has been built up and the compression position exceeded, the engine will start.

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