Summary of R300
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R212 r300 r420 engine owner’s manual.
Page 3: Preface
· 1 · preface thank you for choosing our general-purpose gasoline engine. The manual gives information with respect to operation and maintenance of the 80 100 180-3 210 225 300 390 420 440, general-purpose gasoline engines, and be sure to read it carefully first before operation. Only operate as the...
Page 4: Safety Messages
· 2 · safety messages your safety and the safety of others are very important. We have provided important safety messages in this manual and on the gasoline engine. Please read these messages carefully. A safety message alerts you to potential hazards that could hurt you or others. Each safety messa...
Page 5: Contents
· 3 · contents preface …………………………………………………………… 1 safety messages ……………………………………………… 2 contents ………………………………………………………… 3 i. Safety precautions ………………………………………… 4 ii. Parts description …………………………………………… 6 iii. Battery connection ……………………………………… 9 iv. Pre-operate inspection ……………………………… 11 v. Starting ...
Page 6: I. Safety Precautions
· 4 · i. Safety precautions indicate a possibility of invalid warranty and personal or equipment damage if instructions are not followed. Please pay special attention to the following: 1. Strictly set the engine according to the regulated power on the owner's manual. Do not overload, overrun the eng...
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· 5 · and do not allow flames or sparks in the refueling area. 9. Do not overfill the fuel tank to avoid fuel’s spilling out. If there is spilled fuel around, be sure to clean it thoroughly before starting. 10. The exhaust from the engine may contain poisonous carbon monoxide. To avoid inhalation of...
Page 8: II. Parts Description
· 6 · ii. Parts description parts description muffler throttle lever fuel cap starter handle recoil starter engine switch oil dipstick oil drain plug air cleaner choke lever 80
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· 7 · parts description muffler recoil starter throttle lever starter handle engine switch oil dipstick oil drain plug fuel tank air cleaner choke lever 100 fuel tank cap one way valve.
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· 8 · spark plug muffler recoil starter fuel cock throttle lever starter handle engine switch oil dipstick oil drain plug fuel tank fuel tank cap air cleaner carburetor one way valve choke lever oil protector oil plug parts description.
Page 11: III. Battery Connection
· 9 · iii. Battery connection use 12v and more than 18ah battery, connect its positive lead to start relay terminal while connect its negative lead to engine mounting screw, base screw or other grounding point with the engine.(see the following picture) check the battery's connecting point; make sur...
Page 12: And Call A Physician.
· 10 · battery connection water or milk, and follow with milk of magnesia or vegetable oil and call a physician. 4) keep out of reach of children. 1) do not add tap water to the battery instead of distilled water, otherwise the battery service life will be shortened. 2) do not add distilled water ov...
Page 13: IV. Pre-Operate Inspection
· 11 · iv. Pre-operate inspection 1. Engine oil use 4-stroke engine oil, api service classification sf class or equivalent. Check the api service label on the oil container to be sure it includes the letters sf class or equivalent . Sf 10w-30 is recommended for general use. Other viscosities shown i...
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· 12 · run with insufficient engine oil may damage the gasoline engine severely and that is not within valid warranty. 2. Air cleaner dismantle the air cleaner cover and check its element to make sure it clean and complete. Clean or replace it as necessary( see page 25: maintenance of air cleaner )....
Page 15: Conditions.
· 13 · over the fuel filler shoulder. 1) gasoline is extremely flammable and is explosive under certain conditions. 2) refueling in a well-ventilation area with the engine stopped. Do not smoke and do not allow flames or sparks in the area where gasoline is stored or where the fuel tank is refueled....
Page 16: Warranty.
· 14 · fuel may damage the oil paint and plastic. Be careful not to spill fuel when refueling. Any damage due to oil spilling is not within valid warranty. "light knocking" or "spark exploding" sound can be hear when the engine overloading. It is normal. Do not be worry about that. If " knocking" or...
Page 17: V. Starting The Engine
· 15 · starting the engine v. Starting the engine 1. Turn the fuel cock to the “on” position. 2. Turn the choke lever to the "start" position. If the gasoline engine is hot, turn the choke lever to the "run"position. Fuel cock off on start run choke lever.
Page 18: Return It Gently to Prevent
· 16 · 3. Move governor lever to left a little. 4. Start the engine 1) recoil starter: turn the engine switch to the “on” (open) position. Pull the starter grip lightly until resistance is felt, then briskly. Don’t allow the starter grip to snap back against the engine. Return it gently to prevent d...
Page 19: Starter Again.
· 17 · 2) electric start turn the engine switch to the “start” position, and hold it there until the gasoline engine starts. When the engine starts, allow the engine switch to return to the “on” position. Do not use the starter for more than 5 seconds or starter motor damage may occur. If the engine...
Page 20: VI. Running The Engine
· 18 · vi. Running the engine 1. Preheat the engine and push back the choke lever to the "run" position. 2. Move the throttle lever to proper position to make the gasoline engine run at required velocity. Engine oil alarm the engine oil alarm is specially designed to protect engine when the engine o...
Page 21: To Other Check Items.
· 19 · running the engine if cannot restart the engine, check the engine oil level first before go to other check items. Breaker (electric-start type) the breaker will cut off automatically to protect the charging circuit of the battery in the case that short circuit or incorrect connection of the b...
Page 22: A High Altitude Kit.
· 20 · fuel altitude range﹡﹡ kit part number gasoline 0 – 3000 ft not required 3000 – 6000 ft altitude kit 1# 6000 – 8000 ft altitude kit 2# ﹡ engine, generator set, pressure washer, walk-behind lawnmower, compressor, pump, tiller etc. ﹡﹡ elevation above sea level. ﹡ this high altitude jet is to be ...
Page 23: Vii. Stopping The Engine
· 21 · vii. Stopping the engine in emergency, push the engine switch to the off”. In normal, please do as following: 1. Push right the throttle lever to low speed position. 2. Push the engine switch to the “off” position. 3. Set the fuel cock to “off” position. Sudden stopping at high speed under he...
Page 24: Viii. Exhaust Control System
· 22 · exhaust control system viii. Exhaust control system with the engine running, carbon monoxide, oxide of nitrogen and hydrocarbon will produce, and in certain conditions, oxide of nitrogen and hydrocarbon will react chemically each other to make smoke while carbon monoxide is toxic, so exhaust ...
Page 25: Ix. Maintenance
· 23 · maintenance ix. Maintenance the engine must be properly maintained to ensure its operation be safe, economy and trouble-free, as well as eco-friendly. In order to keep your gasoline engine in good working condition, it must be periodically serviced. The following maintenance schedule and rout...
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· 24 · ● if you have missed the scheduled time to maintain your engine, do it as soon as possible. Stop the engine before servicing. Put the engine on a level surface and remove the spark plug cap to prevent the engine from starting. Never run your engine in a poorly ventilated room or other enclose...
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· 25 · maintenance 2) maintenance of air cleaner a dirty air cleaner can restrict air flowing into the carburetor. To keep the carburetor in good working conditions, please service the air cleaner periodically(clean air cleaner element after engine running 20h).If operating the engine in extremely d...
Page 28: Stage to Avoid Burn.
· 26 · (2) clear away dirt around the spark plug base. (3) dismantle the spark plug with a spark plug wrench. (4) visually check the spark plug. Clean with a steel brush. If the insulator is damaged, replace the spark plug instead. (5) measure the spark plug clearance with a feeler. The clearance sh...
Page 29: X. Ransport and Storage
· 27 · ransport and storage x. Ransport and storage transport with the fuel cock turned the “off” position. Transport or store the engine when it is cool so as to avoid getting burns or fire. Do not incline the engine so as to avoid fuel’s spill. Spilled fuel or fuel vapor may ignite to cause fire. ...
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· 28 · please maintain according to following table when reuse after storing. Storing time maintaining procedure is commended in order to prevent starting difficult. 1 month don’t need to prepare. 1-2 month drain the used gasoline out and add the fresh gasoline 2 months to 1 year drain the used gaso...
Page 31: Xi. Troubleshooting
· 29 · xi. Troubleshooting 1. Start engine difficultly (by using recoil starter): trouble cause remedy normal cylinder compression normal spark plug spark something wrong with the fuel system. Fuel s upply is not s mooth or no fuel sup - ply . There is no enough fuel in fuel tank and fuel cock is cl...
Page 32: Mounting Hole.
· 30 · troubleshooting trouble cause remedy abnormal cylinder compression. Normal fuel supply system. Normal spark plug. Piston ring is worn to or even over its wear limit replace piston ring is broken. Replace piston ring is sticking. Clear up carbon fouling. Spark plug is not installed tighten or ...
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· 31 · 2. Gasoling engine power output insufficiency: trouble cause remedy when increasing throttle, speed increase slow or even decrease and stop running fuel supply system air in fuel line or fuel line clogged exhaust air or dredge fuel line main oil flow hole is not adjusted properly readjust in ...
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· 32 · troubleshooting 4. Stop suddenly when running: trouble cause remedy stop suddenly when running. Fuel supply system fuel is finished refill fuel carburetor is clogged check fuel line and dredge float is leaking repair needle valve is sticked dismantle float chamber and eliminate it ignition sy...
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· 33 · 6. There exists abnormal noise when engine running trouble cause remedy beating sound piston, piston ring or cylinder is worn replace the worn part connection rod or piston pin and piston pin hole are worn replace the worn part crankshaft main neck is worn replace bearing piston ring is broke...
Page 36: Xii. Specifications
· 34 · xii. Specifications 1. 80 100 180-3 210 225 1) main specification model specification 80 100 180-3 210 225 l×w×h 310×290×300mm 390×320×345mm 455×320×345mm(electric start) dry weight 10kg 16kg / 18.4kg(electric start) gasoline engine type 4-stroke, ohv, single cylinder displacement 78.5ml 98.5...
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· 35 · 2) torque of important bolts items 80/100 180-3/210/225 specifica - tions torque valve specifications torque valve n · m kg · m n · m kg · m connection-rod bolt m6×25 12 1.2 m6×1.25(special) 13 1.3 cylinder head bolt m8×55 32 3.2 m10×1.25 35 3.5 flywheel nut m12×1.5 55 5.5 m14×1.5(special) 85...
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· 36 · specifications data adjustment: items technical data spark plug clearance 0.7-0.8mm valve clearance (cold engine) intake: 0.10-0.15mm exhaust: 0.15-0.20mm 2) torque of important bolts: items specifications torque valve n·m kg·m connection-rod bolt m8×1.25(special) 15 1.5 cylinder head bolt m1...
Page 39: Xiii. Electric Diagram
· 37 · xiii. Electric diagram 1.Electric starter engine with oil protection system electric diagram combination switch ig e st bat o on start o o bl black br brown y yellow w white with oil protection system y bl bl controlling box ignition coil changing coil spark plug oil sensor oil protector engi...
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· 38 · electric diagram bl black y yellow g green ignition coil engine switch spark plug bl y y bl y oil sensor oil protector 2.No electric starter engine with oil protection system.
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· 39 · easy worn parts and accessories list xiv. Easy worn parts and accessories list crankcase gasket cylinder head cover gasket cylinder head gasket carburetor gasket carburetor insulation gasket air cleaner gasket exhaust vent gasket spark plug recoil starter seal guide oil sealing socket force b...
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