probst SH-2500 Operating Instructions Manual page 63

Pull the starter grip lightly until
resistance is felt, then pull briskly.
Do not allow the starter grip to
snap back against the engine.
Return it gently to prevent
damage to the starter.
With electric starter
(where equipped):
Turn the engine switch to the
START position and hold it
there until the engine starts.
Do not use the electric starter for
more than 5 seconds at a time. If
the engine fails to start, release
the key and wait 10 seconds
before operating the starter again.
When the engine starts, return
the switch to the ON position.
ENGINE SWITCH
14
START