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LONCIN 190FD - User Manual

LONCIN 190FD
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

  • J
    Joseph SilvaAug 17, 2025
    Why my LONCIN 190FD Engine will not start?
    • R
      Robert BentleyAug 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.
  • C
    christina49Aug 20, 2025
    Why LONCIN Engine lacks power?
    • J
      Joseph WilliamsAug 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.
  • R
    Rachel DavidAug 22, 2025
    What to do if LONCIN 190FD spark plugs wet with fuel?
    • M
      Ms. Robin ColonAug 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.
  • M
    Maria LawsonAug 26, 2025
    What to do if LONCIN 190FD Engine has bad fuel?
    • F
      Felicia WhiteAug 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.
  • J
    John LewisAug 28, 2025
    How to fix faulty spark plugs in LONCIN 190FD?
    • J
      Jacob SanchezAug 28, 2025
      If the spark plugs in your LONCIN Engine are faulty, fouled, or improperly gapped, gap or replace them.
  • S
    sharon45Aug 30, 2025
    What to do if LONCIN 190FD is out of fuel?
    • M
      melissa08Aug 30, 2025
      If your LONCIN Engine is out of fuel, refuel it.
  • C
    Christina FowlerSep 2, 2025
    What to do if LONCIN Engine fuel valve is off?
    • K
      Kevin WatsonSep 2, 2025
      If the fuel valve of your LONCIN Engine is OFF, move the lever to the ON position.
  • J
    jason79Sep 5, 2025
    What to do if LONCIN 190FD Engine switch is off?
    • A
      Amanda ChavezSep 5, 2025
      If the engine switch of your LONCIN Engine is OFF, turn the engine switch to ON.
  • D
    Denise IrwinSep 8, 2025
    What to do if LONCIN Engine choke is open?
    • M
      Michael Nguyen DDSSep 8, 2025
      If the choke on your LONCIN Engine is OPEN, move the lever to CLOSE unless the engine is warm.
  • L
    Lori VillarrealSep 12, 2025
    How to clean LONCIN Engine clogged filter element(s)?
    • S
      Stephen CabreraSep 12, 2025
      If the filter element(s) in your LONCIN Engine are clogged, clean or replace them.

Summary

Engine Safety

Important Safety Information

Owner Responsibilities for Safe Operation

Safe Refueling Practices

Hot Exhaust System Precautions

Carbon Monoxide Hazard Awareness

Information on risks of carbon monoxide from exhaust.

Engine Controls

Fuel Valve Lever Operation

Explains the function and operation of the fuel valve lever.

Throttle Lever Speed Adjustment

Describes how to adjust engine speed using the throttle lever.

Engine Switch Functionality

Details the function of the engine switch for starting/stopping.

Choke Lever Operation

Explains the choke lever for starting a cold/warm engine.

Recoil Starter Grip Usage

Details how to use the recoil starter grip to crank the engine.

Pre-Operation Checks

General Engine Condition Inspection

Engine Oil and Air Filter Verification

Fuel Level Check for Operation

Engine Operation Guide

Safe Operating Precautions Overview

Starting the Engine: Initial Steps

Covers fuel valve and choke lever settings for starting.

Starting the Engine: Throttle and Switch

Sets throttle position and engages the engine switch for starting.

Starting the Engine: Recoil Starter

Instructions for using the recoil starter to crank the engine.

Starting the Engine: Choke Adjustment

Stopping the Engine: Normal Procedure

Steps to safely stop the engine under normal conditions.

Stopping the Engine: Final Steps

Turning off the engine switch and fuel valve.

Setting Engine Speed

Engine Maintenance

Importance of Regular Maintenance

Maintenance Safety Precautions

Critical safety rules to follow during maintenance tasks.

General Maintenance Safety Hazards

Maintenance Schedule Overview

Provides a schedule for regular service items and intervals.

Refueling Procedures and Capacities

Engine Oil Level Check Procedure

Step-by-step guide to checking the engine oil level.

Engine Oil Change Procedure

Instructions for draining and refilling engine oil, including capacities.

Engine Oil Type Recommendations

SAE Oil Viscosity Recommendations

Air Filter Inspection Guide

How to inspect the air filter element for cleaning or replacement.

Dual-Filter Air Cleaner Service

Sediment Cup Cleaning Procedure

Spark Plug Service and Replacement

Guide to inspecting, gapping, and replacing spark plugs.

Idle Speed Adjustment Procedure

How to set the correct idle speed for the engine.

Storage and Transporting

Storage Preparation Steps

Fuel Considerations for Long-Term Storage

Draining Fuel Tank and Carburetor

Troubleshooting Guide

Troubleshooting: Engine Will Not Start

Troubleshooting: Engine Lacks Power

LONCIN 190FD Specifications

General IconGeneral
Displacement420 cc
Fuel TypeGasoline
Compression Ratio8.0:1
Fuel Tank Capacity6.5 L
Oil Capacity1.1 L
OHVYes
Cooling SystemAir-cooled
Starting SystemRecoil start
Bore x Stroke90mm x 66mm
Engine TypeSingle cylinder, 4-stroke, OHV

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