Joyner JNSZ1600QL, Руководство пользователя

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sealant 243 onto the bolt threads. Finger screw in and tighten
to 7.0-10.0Nm.
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15
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. The intake and exhaust system of the engine
1. Description for the intake and exhaust system of carburetor engine. The intake system of Carburetor
Engine 480 includes: air filter, Intake hose, Guide cover, Carburetor, Intake hose, Intake air preheating
hose of Positive Crankcase Ventilation
（
PCV
）
, and so on. ——Air filter type is 1GD129607G, and its basic
parameters are as the following: Filtering area: 100cm2 nominal air flow(L): 600
±
150
filtering efficiency:
≥
99% filtering resistance: 2kPa
Fig.126 intake and exhaust system arrangement of carburetor engine
——The air filter is equipped with an intake air temperature controller. When the temperature is low, the
hot air intake valve controlled by the temperature controller will open and the hot air, flowing by the
exhaust manifold, will be directed into the air filter from the intake preheating hose to supply more hot air
and facilitate the fuel atomization during cold winter. As temperature is high, valve is shutted off and the
hot air is not permitted to enter the air filter. ——Carburetor (see Fuel System)
The exhaust system of the carburetor engine 480 includes Exhaust Manifold, Heat Insulation Cover,
Exhaust Hose, Front Muffler, Rear Muffler.
2. Description for the Exhaust System of Engine 2.480M: