Multiquip MP25E3, MP275E3, MP25E1, MP24 Gasoline Engine Components, Honda GX270QWH2 Gasoline Engine

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GASOLINE ENGINE COMPONENTS

Honda GX270QWH2 Gasoline Engine

The engine (Figure 5) must be checked for proper lubrication and filled with fuel prior to operation. Refer to the manufacturers engine manual for instructions & details of operation and servicing.

1. FuelTank/Fuel Filler Cap – Holds unleaded gasoline. For additional information refer to engine owner's manual. Remove this cap to add unleaded gasoline to the fuel tank. Make sure cap is tightened securely. DO NOT over fill.

DANGER - Explosive Fuel Hazard

Adding fuel to the tank should be done only when the engine is stopped and has had an opportunity to cool down. In the event of a fuel spill, DO NOT attempt to start the engine until the

fuel residue has been completely wiped up, and the area surrounding the engine is dry.

2. Throttle Lever – Used to adjust engine RPM speed (lever advanced forward SLOW, lever back toward operator FAST).

3. Engine ON/OFF Switch – ON position permits engine starting, OFF position stops engine operations.

4. Recoil Starter (pull rope) – Manual-starting method. Pull the starter grip until resistance is felt, then pull briskly and smoothly.

5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop the flow of fuel.

6. Choke Lever – Used in the starting of a cold engine, or in cold weather conditions. The choke enriches the fuel mixture.

7. Air Cleaner – Prevents dirt and other debris from entering the fuel system. Remove wing-nut on top of air filter cannister to gain access to filter element.

Figure 5. Engine Controls and Components

Operating the engine without an

NOTEair filter, with a damaged air filter, or a filter in need of replacement

will allow dirt to enter the engine, causing rapid engine wear.

8. Spark Plug – Provides spark to the ignition system. Set spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch) Clean spark plug once a month.

9. Muffler – Used to reduce noise and emissions

DANGER - Burn Hazard

Engine components can generate extreme heat. To prevent burns, DO NOT touch these areas while the engine is running or immediately after operating. NEVER operate the engine with the muffler removed.

10. Oil Level Cap and Dipstick – Check engine oil with engine stopped and in a level position.

11. Oil Drain Bolt – Drain used oil while the engine is warm.

MQ MP2 SERIES SAW — OPERATION MANUAL — REV. #0 (01/26/09) — PAGE 17

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Contents Models Proposition 65 Warning Respiratory Hazards SILICOSIS/RESPIRATORY Warnings Silicosis WarningMP2 Series Masonry Saws Table of ContentsPage Saw Model SpecificationsMP25E3 MP275E3 MP25E1 MP25E3 MP275E3Dimensions DimensionsRotating blade can cut and crush Keep hands and feet clear Safety Message Alert SymbolsThis saw, other property, or Hazard Symbols Gasoline Powered ModelsNever use fuel as a cleaning agent SafetySafety Gasoline Powered Engines Rules for Safe OperationGeneral Safety Safety Electric Powered ModelsBlade Safety Always use only outdoor approved Grounded extension cordsSawTransportation Safety Saw Maintenance CleaningMP2 Saw General Information MP2 Saw Electric Models Controls and ComponentsStopper Place stopper in tray when filling with water Heavy Duty Electric Motors Electric Motor ComponentsHonda GX270QWH2 Gasoline Engine Gasoline Engine ComponentsOperating the engine without an Muffler Used to reduce noise and emissionsPre-Setup PRE-SETUP Electric MotorsAssembly Electric Powered Saws Only Conveyor Cart PlacementSaw Blades Blade InstallationSaw Blade Definitions Figure Sawing continues, catastrophic failure will occurPlace the power ON/OFF switch in the OFF position down Connecting the Power FigureMP2 Saw is now ready for wet cutting Dry Cutting Electric Saws OnlyAssembly Gasoline Powered Saws Only PRE-SETUP Gasoline EngineWet Cutting Setup Gasoline Only Mechanical water pump isBefore Starting Dry Cutting Setup Gasoline OnlyEngine Oil Check Quarts 1.1 litersStart-up Electric Motor Shutdown ProcedureSTARTUP/SHUTDOWN Electric Motors Place the Choke Lever in the Closed position STARTUP/SHUTDOWN Gasoline EngineStarter Grip Stopping the EngineOperation OperationFixed Height Cutting Method Step Pedal Cutting MethodMaintenance SAW To adjust engine-to-jackshaft belts only Adjust BeltTension Gasoline Powered SawsTo adjust jackshaft-to-bladeshaft belt Adjust BeltTension Electric Powered SawsHorizontal Cutting Head Alignment Cutting Head Alignment BladeTighten the set screws CheckingVertical Cutting Head AlignmentEngine Maintenance Maintenance Gasoline EngineDaily Engine Air CleanerWeekly Engine OilHonda GX270 QWH2 Engine Wiring Diagram Engine Wiring DiagramBlade Troubleshooting Troubleshooting BladeEngine Troubleshooting Troubleshooting Gasoline EngineAdjust governor to correct lever Troubleshooting Electric Motor Page HERE’S HOW to GET Help