Hyundai HYM43SP Operator's Manual

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OPERATOR’S MANUAL

* IMPORTANT SAFETY INSTRUCTIONS

HYM40P - HYM43P - HYM43SP - HY46SP (4-in-1) - HYM51SP (4-in-1)

Licensed by Hyundai Corporation, Korea

Table of Contents

Other manuals for Hyundai HYM43SP

User Manual28 pages

Questions and Answers:

K
kevinsanchezAug 4, 2025
Why my Hyundai HYM43SP engine does not start?
- M
  matthewwoodsAug 4, 2025
  If your Hyundai Lawn Mower engine won't start, several factors could be at play. First, ensure the throttle lever is correctly positioned. Next, check the fuel tank and fill it if empty. Inspect the spark plug: tighten it to 25-30Nm if loose, ensure the spark plug cap is correctly installed, and verify the gap between electrodes is set to 0.7 to 0.8mm. If the carburetor is flooded, remove the air cleaner element and pull the starter rope until it clears. If none of these steps work, the ignition module may be faulty, and you should contact the service dealer.
L
Latoya TannerAug 9, 2025
What to do if Hyundai HYM43SP engine is difficult to start or loses power?
- J
  Joshua LynchAug 9, 2025
  If your Hyundai Lawn Mower engine is hard to start or loses power, the issue might stem from a few causes. One possibility is contaminated fuel; in this case, drain the old fuel, clean the tank, and refill with fresh fuel. Another potential problem is a blocked vent hole in the fuel tank cap, which you should clean or replace. If the air cleaner element is dirty, refer to the Engine Owner’s Manual for cleaning instructions.
R
russelllynnAug 13, 2025
Why does my Hyundai Lawn Mower engine overheat?
- K
  Kelsey LewisAug 13, 2025
  If your Hyundai Lawn Mower engine is overheating, it could be due to restricted cooling airflow. Remove any debris from the slots in the shroud, blower housing, and air passages to ensure proper ventilation. Also, verify that you are using the correct spark plug and replace it if necessary.
G
Gregory BarnesAug 17, 2025
What to do if my Hyundai Lawn Mower engine operates erratically?
- K
  Kimberly MosesAug 17, 2025
  If your Hyundai Lawn Mower engine is running erratically, there are a few potential causes. A defective spark plug could be the culprit, so refer to the Engine Owner’s Manual for instructions on installing a new, correctly gapped plug. Also, ensure the spark plug gap is correctly set between 0.7 and 0.8mm. Another potential issue is a dirty air cleaner element, so refer to the Engine Owner’s Manual for cleaning instructions.
T
Tiffany PrinceAug 21, 2025
How to fix a Hyundai HYM43SP that idles poorly?
- M
  Mark GainesAug 22, 2025
  If your Hyundai Lawn Mower engine idles poorly, several factors could be responsible. A dirty air cleaner element might be the cause, so refer to the Engine Owner’s Manual for cleaning instructions. Additionally, check for blocked air slots in the engine shroud and remove any debris. Finally, clear any obstructions from the cooling fins and air passages under the engine housing.
J
Joan ParkerAug 26, 2025
Why does my Hyundai HYM43SP Lawn Mower vibrate abnormally?
- Z
  Zachary CannonAug 26, 2025
  If your Hyundai Lawn Mower is vibrating abnormally, the issue might be a loose cutting assembly. Try tightening the blade. If the vibration persists, the cutting assembly might be unbalanced, and it should be taken to a service dealer.
N
nealstephanieAug 29, 2025
What causes a Hyundai Lawn Mower engine to skip at high speed?
- S
  Steve ThomasAug 29, 2025
  If your Hyundai Lawn Mower engine skips at high speed, it may be due to the gap between the spark plug electrodes being too close. Adjust the gap to be between 0.7 and 0.8mm.

Hyundai HYM43SP Specifications

General

Engine Capacity	139 cc
Cutting Width	43 cm
Cutting Height Adjustment	Central
Cutting Heights	25-75mm
Drive	Self-Propelled
Engine	Hyundai
Wheel Size	Rear: 10"
Engine Type	4-stroke OHV

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