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LONCIN G390FD - User Manual

LONCIN G390FD
219 pages
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Gasoline Engine Owner’s Manual 3
Benzinmotor Gebrauchsanleitung 44
Moteur d’essence Mode d’emplois 88
Benzinemotor Handleiding 134
Bensinmotor Användarhandbok 178
160F 168F-1 168F-2 170F
173F 177F 182F 188F 190F
G120F·G160F·G180F
·G200F·G210F
G240F·G270F·G340F·G390F·G420F

Table of Contents

Questions and Answers

  • K
    kimberly90Aug 17, 2025
    Why my LONCIN G390FD Engine will not start?
    • Q
      qconleyAug 17, 2025
      If your LONCIN Engine won't start, several factors could be the cause. First, check if the battery is discharged and recharge it if necessary. Ensure the fuel valve is in the ON position. If the engine is cold, make sure the choke is CLOSED; if warm, leave it OPEN. Verify the engine switch is set to ON and that you have sufficient fuel. If the fuel is old or bad, drain the tank and carburetor, then refuel with fresh gasoline. Inspect the spark plugs for faults, fouling, or incorrect gaps; gap or replace them as needed. If the spark plugs are wet, dry and reinstall them, then start the engine with the throttle lever in the FAST position. For more complex issues like a clogged fuel filter, carburetor malfunction, or valve problems, consider replacing or repairing the faulty components.
  • P
    patrickwilliamsAug 20, 2025
    Why LONCIN Engine lacks power?
    • C
      cprinceAug 20, 2025
      If your LONCIN Engine lacks power, start by checking the filter elements for clogs and clean or replace them as needed. Ensure that the engine has enough fuel by refueling if necessary. If the fuel is old or of poor quality, drain the fuel tank and carburetor, and then refuel with fresh gasoline. In case of a clogged fuel filter, carburetor malfunction, ignition malfunction, or a stuck valve, replace or repair the faulty components.
  • A
    Andrea ReedAug 22, 2025
    What to do if LONCIN G390FD spark plugs wet with fuel?
    • D
      Dennis RomeroAug 22, 2025
      If your LONCIN Engine's spark plugs are wet with fuel, it indicates a flooded engine. To resolve this, dry and reinstall the spark plugs. Then, start the engine with the throttle lever in the FAST position.
  • C
    colonchelseaAug 26, 2025
    What to do if LONCIN G390FD has bad fuel?
    • L
      Lori DavisAug 26, 2025
      If the fuel in your LONCIN Engine is bad, it could be due to the engine being stored without treating or draining the gasoline, or refuelling with bad gasoline. The solution is to drain the fuel tank and carburetor, then refuel with fresh gasoline.
  • M
    mariajarvisAug 28, 2025
    How to fix faulty spark plugs in LONCIN Engine?
    • J
      Jessica HaleyAug 28, 2025
      If the spark plugs in your LONCIN Engine are faulty, fouled, or improperly gapped, gap or replace them.
  • D
    Damon ThomasAug 31, 2025
    What to do if LONCIN G390FD is out of fuel?
    • P
      patricia72Aug 31, 2025
      If your LONCIN Engine is out of fuel, refuel it.
  • V
    Victoria PattonSep 2, 2025
    What to do if LONCIN G390FD fuel valve is off?
    • D
      daniel64Sep 3, 2025
      If the fuel valve of your LONCIN Engine is OFF, move the lever to the ON position.
  • W
    Whitney FlemingSep 5, 2025
    What to do if LONCIN Engine switch is off?
    • K
      Kenneth WatsonSep 5, 2025
      If the engine switch of your LONCIN Engine is OFF, turn the engine switch to ON.
  • R
    richardmorenoSep 8, 2025
    What to do if LONCIN G390FD Engine choke is open?
    • K
      Kathryn WarrenSep 8, 2025
      If the choke on your LONCIN Engine is OPEN, move the lever to CLOSE unless the engine is warm.
  • K
    Kevin AllisonSep 12, 2025
    How to clean LONCIN G390FD clogged filter element(s)?
    • R
      robin53Sep 12, 2025
      If the filter element(s) in your LONCIN Engine are clogged, clean or replace them.

Summary

Controls

Fuel Valve Lever

Explains the function and operation of the fuel valve lever.

Throttle Lever

Engine Switch

Choke Lever

Check Before Operation

Operation

Safe Operating Precautions

Review important safety information and precautions before operating the engine.

Starting the Engine

Step-by-step guide on how to safely start the engine.

Stopping the Engine

Procedure for safely stopping the engine under normal and emergency conditions.

Maintenance

Importance and Safety of Maintenance

Explains the benefits of maintenance and highlights critical safety precautions.

Maintenance Schedule

Outlines regular service intervals and tasks for engine upkeep.

Refueling and Fuel Recommendations

Engine Oil Management

Procedures for checking and changing engine oil, including capacities.

Air Cleaner Service

Spark Plug and Idle Speed

Storage and Transporting

Engine Storage Preparation

Fuel Management for Storage

Troubleshooting

Engine Will Not Start Issues

Lists common causes and corrections for engine starting failures.

Engine Lacks Power Issues

Identifies issues and solutions when the engine has reduced power output.

LONCIN G390FD Specifications

General IconGeneral
BrandLONCIN
ModelG390FD
CategoryEngine
LanguageEnglish

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