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Starting the Engine (Picture E, F, G)
a. Open the throttle switch, close the choke, adjust the throttle valve to proper position, first,
slightly pull the starting handle till feeling a little resistance, then pull forcefully to start the gaso
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line engine.
b. After starting, let the engine run 1-3 minutes at idle speed, meanwhile, check the engine work
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ing condition whether it runs stably or smoothly and there is any abnormal noise, then open the
choke to maximum and adjust the throttle opening to obtain required speed. To the present, the
starting process is completely over.
Stopping the engine (Picture G1)
When running engine, keep yourself far away from the muffler and don’t face exhaust outlet for
your health. Pay attention to abnormal state of the engine in the running. If finding abnormal
sound, grate vibration, serious traveling and firing gun, etc. stop the engine at once.
Caution: Urgency stopping engine: Set the stopping switch to OFF position or directly pull out the
spark plug. Correct stopping the engine is: First remove load, idle run 2-3 minutes, then, set the
stopping switch to OFF position or directly pull out the spark plug, the machine will stop at once.
Don’t directly stop the engine without removing load in normal condition.
Main adjustments (Pictures H, I, J)
Each gasoline engine has been strictly tested and inspected in our factory, general, the machine
can normally run without any adjustment. After operating some time, adjust to gasoline engine as
following procedure if necessary:
1. Adjust the valve gap: intake valve gap: 0.10-0.15mm; exhaust valve gap: 0.15 0.20mm.
a. Grasp valve gap adjusting nut and release valve lock nut.
b. Turn valve gap adjusting nut to specified gap.
c. Grasp valve gap adjusting nut and screw up valve lock nut.
d. After screwing up valve lock bolt, recheck valve gap.
2. Adjust the governor system (big and small tension spring, throttle support, and throttle gover
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nor lever)
a. Remove the fuel tank.
b. Screw off lock nut and move the throttle support to completely open the valve.
c. After moving the throttle support, opening valve and turning the throttle governor lever in same
direction to farthermost position where it can reach, screw up lock nut.
d. Check if throttle support and valve move smoothly.
e. Install the fuel tank.
Picture D
1. Butterfly nut,
2. Air cleaner cover,
3. Butterfly nut
4. Paper filter-element,
5. Foam filter element,
6. Gasket
7. Cleaner base plate.
Picture H:
1. Filler
Picture I:
1. Valve, 2. Rocker, 3. Valve lock nut, 4. Valve
gap adjusting nut
To increase the valve gap, screw out the nut.
To decrease the valve gap, screw in the nut.
Picture J:
1. Lock nut, 2. Throttle governor lever, 3.
Throttle support, 4. Throttle valve, 5. Governor Screw
Picture E
1. Throttle Switch
2. Open Position of the Throttle Switch
3. Drain plug
4. Pulling Cable Assembly
Picture F
1. Choke
2. Set choke to off position
Picture G1
1. Throttle Switch handle
2. Close position of the throttle Switch
3. Carburettor Drain Bolt
Checking the air cleaner (Picture D)
Air cleaner has two types of the semi-dry and oil bath. Check whether air cleaner is clean and
foam shall be free from dust.
First using oil bath air cleaner, filling clean machine oil level (oil level marked on the outer case of
oil bath air cleaner) should be flushed with oil level of the air cleaner outer case. Clearly see safety
and warning appliqué before starting.
Notes of unpacking
Carefully make the gasoline engine in normal condition when unpacking. Carefully check whether they are complete according to the packing list. Our com
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pany provides gasoline engine with fine quality, environment, performances and cost ratio high.
If you have any question in the operation, please consult with local dealer or directly telephone to our after sale service centre.
Caution: Don’t disassemble the gasoline engine by yourself within warrant period! (If disassembling by user, can’t join warrant certification).
Maintenance (Picture K)
Everyday maintenance: A Check the filter element of the air cleaner, remove the dirt and foreign materials to keep the element clean. B Check the fastening
nuts whether they are tightened. C Check the lubrication Oil level whether it is kept within specified range. After the engine running about 25 hours, the air
cleaner should be cleaned. After the engine running about 50 hours, the spark plug must be checked, remove its carbon deposits, and adjust its gap to 0.7-
0.8mm.
Check radiating fin and remove the dirt among them. Replace the lubrication oil, unscrew the drain plug, tilt the engine slightly and let the lubrication oil
drain out, add the kerosene to clean and then drain it out, finally, tighten the drain plug and fill in the new lubrication oil to the specified oil level.
After every 100 hours running, the fuel tank and filter strainer must be cleaned. Open the fuel tank cover, take out the filter strainer and clean it with brush.
Take off the fuel tank, clean inside of the tank and remove the dirt and water attached on the internal surface of the tank. Reassemble the tank and fit the
strainer, then fill in new fuel oil till the oil level reaching the red basic line.
After running every two years, check the ageing condition of the oil tube. If there is any ageing, hardening or crack, it must be replaced. Tighten the replaced
oil tube joints and check its leakage.
Maintenance before stopping use for long time
For some reasons, if the engine is not used for a long time, it must be maintained one time before is stored: A Take off the fuel tank, drain out all fuel and
clean the dirt and water inside of the tank. Open th fuel cock, unscrew the drain plug at the bottom of carburettor, drain out fuel in carburettor thoroughly,
and then, screw the drain plug to original position. B Unscrew the drain plug at the bottom of the crankcase and drain out the lubrication oil in crankcase
thoroughly, then tighten the drain plug. C Clean the outer surface of the gasoline engine with clean cotton, remove the dirt and dust etc., then store the gaso
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line engine in a clean and dry place where is in good ventilation condition. D Turn crankshaft and make the gasoline piston stopping at upper limit position in
order to avoid it entering in. Disposing wasted oil: Pleas use a special container to collect wasted oil from gasoline engine and send to local wasted oil station
for disposing. Don’t pour everywhere.
Transportation & Storage
Lightly handle in the loading and unloading, keep upright and don’t incline. Strictly prohibit bumping and protect from drenching in the transportation. The
gasoline engine should be stored in the clean, ventilating, moisture-proof and damp proof place. If storing the engine for a long time:
1. Store the gasoline engine in the clean, ventilating, moisture-proof and damp-proof place.
2. Drain the fuel completely out of the machine (including machine oil in the oil bath type air cleaner).
