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Cobra DG350 Original Instructions Manual

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Engines
Original Instructions
Model: DG350
Henton and Chattell Ltd: London Road, Nottingham NG2 3HW. UK.

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steven Brown
May 26, 2025

Is the fuel a mixture?

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1 comments:
Mr. Anderson
May 26, 2025

No, the fuel for the Cobra DG350 is not a mixture. It uses regular fuel added directly to the fuel tank.

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Summary of Contents for Cobra DG350

  • Page 1 Engines Original Instructions Model: DG350 Henton and Chattell Ltd: London Road, Nottingham NG2 3HW. UK.

  • Page 2: Table Of Contents

    CONTENTS SECTION 1 INTRODUCTION................3 SECTION 2 SAFETY MESSAGES................3 SECTION 3 SAFETY INFORMATION ..............3 SECTION 4 COMPONENT&CONTROL LOCATION..........4 SECTION 5 PRE-OPERATION CHECKS...............4 SECTION 6 OPERATIONS ..................4 SECTION 7 SPECIFICATIONS…………………………………………………………6 SECTION 8 TUNE-UP SPECIFICATIONS..............7 SECTION 9 SERVICING YOUR ENGINE...............7 SECTION 10 ENGINE ADJUSTMENT……………………………………………..14 SECTION 11 HELPFUL TIPS&SUGGESTIONS………………………..…………..14 SECTION 12 TAKING CARE OF UNEXPECTED PROBLEMS......

  • Page 3: Section 1 Introduction

    1. INTRODUCTION Thank you for purchasing our engine. We want to help you to get the best results from your new engine and operate it safely. This manual contains information on how to do that; please read it carefully before operating the engine.

  • Page 4: Section 4 Component&Control Location

    4. COMPONENT&CONTROL LOCATION Fig. 1 1. Starter grip 2. Fuel cap 3.Air filter 4. Primer bulb 5. Carburetor 6.Spark plug 7. Muffler 8. Oil filter cap/dipstick 9.Fuel tank 5. PRE-OPERATION CHECKS For your safety, and to maximize the service life of your equipment, it is very important to take a few moments to check the engine condition before operating Be sure to take care of any problem you find, or have your servicing dealer to correct it before you operate the engine.
  • Page 5 Carbon monoxide gas is toxic. Breathing it can cause unconsciousness and even kill you. WARNING: Avoid any areas or actions that expose you to carbon monoxide. Review the instructions provided with the equipment powered by this engine for any safety precautions that should be observed with engine startup, shutdown, or operation.

  • Page 6: Section 7 Specifications

    Fig. 4 7. SPECIFICATIONS Type DG350 Dry weight(kg) Engine type 4-stroke, overhead valve, single cylinder Displacement[Bore x Stroke] 98.5cc 56*40mm Max. torque 5.1N.m at 3,000 min-1 Cooling system Forced air Lubrication systems Forced splash Ignition system PTO shaft rotation Counterclockwise 8.
  • Page 7 To help you properly care for your engine, the following pages include a maintenance schedule, routine inspection procedures, and simple maintenance procedures using basic hand tools. Other service tasks that are more difficult, or require special tools, are best handled by professionals and are normally performed by our technician or other qualified mechanics.
  • Page 8 Before First Every 3 Every 6 Every Every Regular service period each use month months months year or Note or 5 or 25 hrs or 50 hrs 100 hrs years Item perform at every in dictated month or operating hour interval. 200hrs Whichever comes first √...
  • Page 9 Refuel only outdoors. Wipe up spills immediately. Fuel can damage paint and some types of plastic. Be careful not to spill fuel when filling your CAUTION: fuel tank. Damage caused by spilled fuel is not covered under the Warranty. Never use stale or contaminated gasoline or oil/gasoline mixture.
  • Page 10 4. If the oil level is near or below the lower limit mark on the dipstick, remove the oil filler cap/dipstick(8), and fill with the recommended oil to the upper limit mark (bottom edge of .the oil fill hole). Do not overfill. 5.
  • Page 11 Fig. 9 Running the engine with a low oil level can cause engine damage. Reinstall the oil filler cap/dipstick CAUTION: securely. 9.7 AIR CLEANER A dirty air cleaner will restrict air flow to the carburetor and cause poor engine performance. Inspect the air cleaner each time the engine is operated.
  • Page 12 6. Close the air cleaner cover and tighten the two wing bolts securely. 9.8 SPARK PLUG Recommended Spark Plug: BPR6ES or BPR7ES (NGK). The recommended spark plug is the correct heat range for normal engine operating temperatures. Incorrect spark plugs can cause engine damage. WARNING: For good performance, the spark plug must be properly gapped and free of deposits.

  • Page 13: Section 10 Engine Adjustment

    brake cable bracket. (See Fig. 12) Fig12 9. Fuel tank A. Fly wheel B. Brake system 10. ENGINE ADJUSTMENT Do not change in any way the rated speed of the engine (carburetor side or regulator side). WARNING: Your engine was adjusted in the factory and the non-respect of the homologation speed WARNING: engine could be dangerous for your safety and others safety.
  • Page 14 when you filled the fuel tank. Fuel system damage or engine performance problems resulting from neglected storage preparation are not covered under Warranty. 11.1.4 ADDING A GASOLINE STABILIZER TO EXTEND FUEL STORAGE LIFE When adding a gasoline stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, air in the tank will promote fuel deterioration during storage.
  • Page 15 Fig. 14 11.1.8 STORAGE PRECAUTIONS If your engine will be stored with gasoline in the fuel tank and carburetor, it is important to reduce the hazard of gasoline vapor ignition. Select a well-ventilated storage area away from any appliance that operates with a flame, such as a furnace, water heater, or clothes dryer.

  • Page 16: Section 12 Taking Care Of Unexpected Problems

    TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction 1. Check fuel. Out of fuel. Refuel Bad fuel; engine stored without Drain the fuel tank and Carburetor. eating or draining gasoline, of Refuel With fresh gasoline. refueled with bad gasoline. 2.
  • Page 17 Engine serial number: 13.2 CARBURETOR MODIFICATIONS FOR HIGH ALTITUDE OPERATION 1. At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. 2. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that, at which this engine was certified, for extended periods of time, may increase emissions.

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