E-TON Viper 90R Spécifications télécharger pdf (Page 18)

5. ENGINE LUBRICATION AND COOLING SYSTEM

5.1 ENGINE LUBRICATION SYSTEM 5.4 COOLING SYSTEM

5.2 CAUTION

5.3 OIL PUMP

5.5 TROUBLESHOOTING

5.1 ENGINE LUBRICATION SYSTEM

The engine drives the pump gears of oil pump

crankshaft. Pump gears rotate the plunger shaft in oil

pump. This shaft sent the lubricating oil into the crankcase

to mix with the mixture of air-fuel flow evenly.

The oil drops and foam cover the cylinder inner wall,

piston surface and piston rings.

5.2 CAUTION

Having enough oil supply to engine is very important.

If the oil quantity is not enough, this engine will be serious scratched, and then this engine will stop, even

cannot work again.

When this engine is serious scratched, you need to change the piston, piston rings and cylinder together.

Also you need to check the combustion system and lubrication system carefully.

5.3 OIL PUMP

The quantity of oil that deliver out from oil pump increased by the engine speed and the carburetor throttle

open width. Oil pump is under the right side of the engine and connected by a control cable of throttle.

5.4 COOLING SYSTEM

The engine-cooling fan sucks the air.

The cooling fan is on the right side of engine.

The air is forced to flow through cylinder fin and

cylinder head. So, the cylinder and piston will not

over heat.

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E-TON Viper 90R Spécifications Page 18