LONCIN 188FD User Manual

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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:

H
heatheratkinsAug 17, 2025
Why my LONCIN 188FD Engine will not start?
- M
  Monica GravesAug 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.
M
maria33Aug 19, 2025
Why LONCIN 188FD Engine lacks power?
- I
  ibryantAug 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
Ronald HansenAug 22, 2025
What to do if LONCIN 188FD Engine spark plugs wet with fuel?
- N
  Nicholas MeyerAug 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
Melissa SandersAug 25, 2025
What to do if LONCIN 188FD has bad fuel?
- R
  Robert ChaseAug 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
Joshua HubbardAug 27, 2025
How to fix faulty spark plugs in LONCIN 188FD Engine?
- K
  Kevin RogersAug 28, 2025
  If the spark plugs in your LONCIN Engine are faulty, fouled, or improperly gapped, gap or replace them.
K
Kimberly JohnsonAug 30, 2025
What to do if LONCIN 188FD is out of fuel?
- T
  Teresa AndersonAug 30, 2025
  If your LONCIN Engine is out of fuel, refuel it.
M
Ms. Dana Guerra DVMSep 2, 2025
What to do if LONCIN 188FD Engine fuel valve is off?
- D
  deborah70Sep 2, 2025
  If the fuel valve of your LONCIN Engine is OFF, move the lever to the ON position.
D
Diana ParkSep 5, 2025
What to do if LONCIN 188FD switch is off?
- M
  Michael BarnesSep 5, 2025
  If the engine switch of your LONCIN Engine is OFF, turn the engine switch to ON.
W
Whitney ThompsonSep 7, 2025
What to do if LONCIN 188FD choke is open?
- H
  huntfrankSep 8, 2025
  If the choke on your LONCIN Engine is OPEN, move the lever to CLOSE unless the engine is warm.
R
Ryan StewartSep 12, 2025
How to clean LONCIN 188FD clogged filter element(s)?
- V
  victoria49Sep 12, 2025
  If the filter element(s) in your LONCIN Engine are clogged, clean or replace them.

LONCIN 188FD Specifications

General

Valve Configuration	OHV
Displacement	389 cc
Bore x Stroke	88 mm x 64 mm
Fuel Type	Gasoline
Fuel Tank Capacity	6.5 L
Oil Capacity	1.1 L
Weight	31 kg
Engine Type	Single cylinder, 4-stroke, OHV
Cooling System	Forced air-cooled
Starting System	Recoil start

Summary

Engine Safety

Controls

Fuel Valve Lever

Controls fuel flow between the tank and the carburetor for engine operation.

Throttle Lever

Adjusts engine speed by controlling the amount of air and fuel mixture delivered.

Engine Switch

Enables or disables the ignition system to start or stop the engine.

Choke Lever

Recoil Starter Grip

Operation

Safe Operating Precautions

Essential safety guidelines to follow before and during engine use.

Starting the Engine

Step-by-step instructions for safely starting the gasoline engine.

Stopping the Engine

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

Setting Engine Speed

Maintenance

Refueling

Fuel Recommendations

Engine Oil Level Check

Engine Oil Change

Spark Plug Service

Idle Speed Adjustment

Storage and Transporting

Storing Your Engine

Troubleshooting

Engine Will Not Start

Common causes and corrective actions for engines that fail to start.

Engine Lacks Power

Troubleshooting steps for diagnosing and fixing issues causing reduced engine power.

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