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5. 2V90FD
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• Page 1
  Owner’s Manual 2V90FD…
• Page 2
  Thank you for your purchasing our Engine. Please keep this manual in proper place so as to read it for reference at any time. Take this manual as a part of the engine. If the engine is resold, it is required to transfer the engine with the manual.

• Page 3: Table Of Contents

  Contents 1.Safety…………………………2 2.Parts and component names………………….3 3.Use of engine………………………4 Engine switch……………………..4 Choke button……………………..4 Regulator lever……………………..4 Engine oil protecting system………………….5 4. Check before operation……………………6 Routine inspection……………………6 Check engine oil………………………6 Check air cleaner………………………7 5.Start engine…………………………………8 6.Stop engine………………………..10 7.Maintenance Maintenance schedule…………………….11 Replace crank case oil…………………….12 Maintain air cleaner……………………13 Spark plug………………………14 Regulate idle speed……………………14…

• Page 4: Safety

  Safety 1. Safety Consumers’ responsibility  Before operating the engine, it is required to read the manual carefully and understand it, otherwise hurt to body or damage to engine may occur.  Be familiar with controlling and operating the engine and emergency stop, it is only allowed to operate the engine by authorized person.

• Page 5: Parts And Component Names

  Part and Component Names 2. Part and component names Serial number ： T***YYMM******* YYMM is year and month of manufactured…

• Page 6: Use Of Engine

  Use of Engine Serial number ： T***YYMM******* YYMM is year and month of manufactured…

• Page 7: Engine Switch

  Use of Engine 3 Use of engine 1) Engine switch The engine switch is a ignition circuit for starting and stopping engine. When the engine switch turns to “on” position, the engine runs, when the switch turns to “off” position, the engine stops. 2) Choke button The function of the choke button is to open or close the choke valve in the carburetor.

• Page 8: Regulator Lever

  Use of Engine 3) Regulation lever Regulate the position of the regulation lever to get the desired speed. For a reasonable speed of the engine, please refer to indicated parameters of the matched device. 4) Engine protecting system The engine protecting system is designed to protect engine from damage because of lack of oil in the crank case.

• Page 9: Check Before Operation

  Check before Operation 4. Check before operation Routine inspection  Observe the leakage of engine oil and fuel.  Observe damage.  Check guard cover and cap position, and the tightness of screw, bolt and nut. Check engine oil Caution After stalling, place the engine in level position, then check oil level.

• Page 10: Check Air Cleaner

  Check before Operation When the engine oil level is lower than the safe line, the engine protecting system will stops the engine automatically. To avoid engine stalling accidentally, check the oil level before starting the engine each time. Caution When filling fuel, the fuel level does not exceed shoulder of fuel filter (i.e. top level).。…

• Page 11
  Check before Operation…
• Page 12
  Start Engine 5. Start Engine 1) When coldstart is performed, the choke button must be “off” position. When hotstart is done, the choke button must be “on” position. 2) Regulate the position of the regulation lever from “low ” to “high”. Engine Engine for Genset…

• Page 13: Start Engine

  Start Engine 3) Turn the engine switch to”on” position. 4) If the engine starts in the condition that the choke button is pulled to “off” position, when the engine warming up, push the choke button gently to “on” position. If hot start is done, the choke button is kept in “on”…

• Page 14: Stop Engine

  Stop Engine 6. Stop engine In emergency, it is an easy way to stop the engine, just turn the engine switch to “off”. But as a rule, stop engine as follows: 1) Turn the regulation lever to “low” position. Engine Engine for Genset 2) Stop the engine.

• Page 15: Maintenance Maintenance Schedule

  Engine Maintenance 7. Maintenance Maintenance schedule 20 hours or hours hours 300 hours Periodical maintenance Every the first or every schedule time month every 3 every 6 year month month Oil level ○ Engine oil Replace ○ ○ ○(2) or 200 Fine oil filter Replace hours…

• Page 16
  Engine Maintenance Replace oil in crankcase After warming up the engine, it is easy to drain the engine oil to ensure the engine oil is rapidly drained out. 1) Place a container under the engine for containing used oil.. Then, remove the oil ruler and loosen the draining screw and washer,.

• Page 17: Maintain Air Cleaner

  Engine Maintenance API classification: SE、SF or equivalent to SG, SAE 10W-30. Environment temperature If the range of temperature change in your area is limited in the above chart ，this oil grade can be selected according to it. Maintain air cleaner If the air cleaner is dirty, it affects air inlet, the power of engine reduced.

• Page 18: Spark Plug

  Engine Maintenance Spark plug It is recommended to use spark plug, or equivalent one. RC12YC Caution Spark plug of incorrect type may damage the engine. 1) Remove the spark plug cap，Clean dust around the spark plug. 2) Unscrew the spark plug with a special socket wrench. Spark plug 3) Check spark plug.

• Page 19: Regulate Idle Speed

  Engine Maintenance Regulate idle speed Start the engine outdoor，warm up it for a while. Put the regulation lever to “low” position. Regulate the idle speed with a special tool，make idle speed within the range: Standard idle speed：1800±200rpm。…

• Page 20: Engine Storage

  Engine Storage 8. Engine storage After the engine stalling, do not clean the engine till it cools for over half an hour. Clean all surfaces of the engine and mend the damaged paint film, apply antirust oil on the rusting area.

• Page 21
  Engine Storage carburetor without causing functional problems will vary with such factors as gasoline blend, your storage temperatures, and whether the fuel tank is partially or completely filled. The air in a partially filled fuel tank promotes fuel deterioration. Very warm storage temperatures accelerate fuel deterioration.

• Page 22: Troubleshoot

  Troubleshoot 9. Troubleshoot 1）Difficult to start Phenomena Causes Elimination Fill fuel，turn on fuel No fuel，or fuel cock off cock Vent on fuel tank cap blocked Unblock Fuel line Fuel cock blocked Clean blocked Orifice improperly regulated Regulate、 clean 、 blow or blocked Spark Fuel…

• Page 23
  Troubleshoot Phenomena Causes Elimination Ignition Replace ignition Improper timing system coil Air mixed in fuel line Exhaust air Orifice regulated improperly Regulate Needle valve or orifice Clean , blow off Fuel system blocked Fuel cock blocked Clean or replace Carbonized in combustion Clean carbonized…
• Page 24
  Troubleshoot 4）Engine overheating Phenomena Causes Elimination Improper timing Replace ignition coil Insufficient engine oil Fill engine oil Outlet blocked Clean outlet Ventilation hood leakage Repair damaged place Air conduit blocked with Clean radiator Engine foreign thing overheating Cool fan failed Reinstall fan Piston ring failed to result in cylinder and crank case…

• Page 25: Battery

  ENGINE PARAMETER 10. Battery（optional） Please choose the battery, 12V, rated capacity of 36Ah. or more。 Caution Never connect the positive and negative electrodes in reverse, otherwise, it will damage the engine and battery severely. Check the electrolyte level in cell if they are in the position between the top limit line and low Upper line limit line.

• Page 26: Engine Parameters

  ENGINE PARAMETER 11. Engine parameters Project Engine Engine for Genset Engine Type 2-cyl、4-stroke、forced air cooling、OHV Displacement 999ml（90X78.5mm） （bore X stroke） power Rated (kW/3600rpm) Max torsion(N·m) 70/2800 speed(rpm) Fuel rate ≤350 (g/kW·h) Idle speed 1800±200 (rpm) Speed fluctuation ratio ≤10% Compression ratio 8.5:1 Start mode Powered start…

• Page 27: Wiring Diagram

  WIRING DIAGRAM 12.Wiring diagram Powered starting engine with oil protection system…