Must Read before use:Four stroke 4 hp: Firstly,Fill the gear oil (open gear box lid and fill it).Secondly, Fill NO. 92 petrol, lightly press oil pump 6-10 times. Thirdly,Fill engine oil don't exceed the head of the pattern.Forthly,turn the throttle to the start up and turn the accelerator gets up to 50%.what is more:1.About the noise: all the gasoline machines are noisy, currently we did not test the decibel , but the noise is the same as the motorcycle, so it is a normal phenomenon2.The machine itself is lightweight, it can use on boat weight of 100kg or less , load-bearing 4 people, but the speed is certainly not the same when one person on it or 4 people on it . Customer who has high expectations on speed, please be noticed3.It can be marched with inflatable boats, rubber boats or fishing boats4.Necessary: you have to prepare a boat-motor stand or Hanging board on your boatType: 4 stroke 4 horsepower Capacity: 52ccShort shaft ：40cm  Transmission ratio: 2.08 (27:13)The number of cylinders: 1Maximum speed: 4000-5000Maximum power: 2.8 kW /4 HPShift position: clutch controlPackage volume: 95x40x30 cmIgnition system: CDICooling system: air coolingStarting method: Manual startRefueling: No. 93 gasolinePropeller size: 7 1/4X7-AThe maximum fuel consumption: 1.4 liters / hourRecommended Lubricant:4 stroke lubricating oilMixing ratio:Pure gasolineTrim and tilt system:Manual Tilt
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