About Engine - Joyner JNSZ1600QL Owner's Manual

About engine

A. precaution
a. strictly observe all requirements and specifications in this manual.
b. Check the earth polarity of accumulator. this gasoline engine adopts negative earth.
c. Grinding in must be conducted when using a new gasoline engine.
d. When gasoline engine is running, your head, hand, cloth, tool and other things should be strictly forbidden
to approach the running fan and pump belt.
e. When running or just stopping, don't touch exhaust sub-tube etc heat exhaust parts. Don't open radiator
cover when it is hot.
f. When starting gasoline engine, you must not throttle fiercely in order to avoid running at a high speed and
too low fuel pressure.
g. When running at a high speed and overload, don't stop engine. You should stop it after it runs at a low
speed for 3-5 minutes.
B. Grinding in of new gasoline engine and its precautions.
New gasoline engine must be grinded in before using it normally. it should be mounted on a car and driven for
1000km according to the running criteria in table 1 or grinded in on the gasoline engine test platform for 50 hours
according to the grinding in criteria
Grinding in of new gasoline engine and its precautions
Engine oil, fuel ,coolant, and electrolyte of accumulator should be sufficient. Don't operate it at high speed at
once after starting the engine. You should preheat it step by step.
You'd better drive it on cement pavement or asphaltum pavement, and avoid running on soil sand road as little
as possible.
Don't exceed the high speed that asked in table 1.
After driving for 1000km, the new car can be used normally.
Check the valve clearance, firing advance angle, idle, tightness of water pump belt, then adjust them to meet the
manual requirement.
Change filter, lubricant of gasoline engine, gearbox and differential.
Screw tightly connecting bolt of cylinder cover, every bracket bolt , admission and exhaust sub-tube bolt or nut.
C.Storage of gasoline engine
There is a small quantity of lubricant in SQR480
clean, dry and ventilated warehouse without any corrosive gas. Storage period should be half a year.
If period of storage were longer than half a year, you should fill 2.5L antirust lubricant into gasoline engine and
remove spark plug of all cylinder, and make all piston be between upper dead and lower dead point, and fill
0.006L antirust lubricant into every cylinder and start gasoline engine for 3-4 times using start motor. Each time
is about 15 seconds long. And than remove bleeding screw plug and spark plug, and screw them tightly
according to the specified torque.
gasoline engine when it left factory.
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It should be stored in