Table of Contents
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7-11 SERVICING INFORMATION
TIGHTENING TORQUE
ENGINE
Magneto rotor nut
Magneto cover bolt
Muffler mounting bolt
Exhaust pipe nut
Starter clutch bolt
Cylinder head bolt
Cylinder head cover bolt
Cylinder head stud bolt
Cylinder head base nut
Cylinder head base nut
Engine sprocket nut
Engine oil drain plug
Engine mounting bolt
Cam chain sprocket bolt
Cam chain tensioner bolt
Cam chain tension adjuster bolt
Camshaft sprocket bolt
Crankcase bolt
Clutch sleeve hub nut
Primary drive gear nut
Camshaft housing bolt
Oil cooler union bolt (M10)
Oil cooler union bolt (M12)
Spark plug
Neutral cam stopper plug
ITEM
N m
kg m
50 ~ 60
5.0 ~ 6.0
8 ~ 12
0.8 ~ 1.2
20 ~ 30
2.0 ~ 3.0
18 ~ 28
1.8 ~ 2.8
15 ~ 20
1.5 ~ 2.0
7 ~ 11
0.7 ~ 1.1
12 ~ 16
1.2 ~ 1.6
21 ~ 25
2.1 ~ 2.5
7 ~ 11
0.7 ~ 1.1
15 ~ 20
1.5 ~ 2.0
80 ~ 100
8.0 ~ 10.0
18 ~ 20
1.8 ~ 2.0
40 ~ 60
4.0 ~ 6.0
10 ~ 13
1.0 ~ 1.3
6 ~ 8
0.6 ~ 0.8
8 ~ 12
0.8 ~ 1.2
10 ~ 12
1.0 ~ 1.2
8 ~ 12
0.8 ~ 1.2
30 ~ 50
3.0 ~ 5.0
40 ~ 60
4.0 ~ 6.0
8 ~ 12
0.8 ~ 1.2
20 ~ 25
2.0 ~ 2.5
20 ~ 25
2.0 ~ 2.5
20 ~ 25
2.0 ~ 2.5
20 ~ 25
2.0 ~ 2.5
- Quick Links:
- Carburetor
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Do you have a question about the COMET 125 and is the answer not in the manual?
Questions and answers
how do i change the battery
To change the battery on a HYOSUNG COMET 125, follow these steps:
1. Check for Damage: Inspect the battery container. If there are cracks or electrolyte leaks, replace the battery.
2. Clean Terminals: If terminals are rusty or have a white powdery substance, clean them using sandpaper.
3. Remove Old Battery:
- Disconnect the battery terminals.
- Carefully remove the battery from its compartment.
4. Install New Battery:
- Fill the new battery with electrolyte as required.
- Tap the bottom two or three times to remove air bubbles.
- Remove empty electrolyte containers slowly to avoid vapor release.
- Insert caps firmly into the filler holes so they are flush with the battery top.
5. Check Voltage:
- Measure voltage with a pocket tester.
- If below 12.0V DC, recharge the battery.
6. Reconnect: Connect the battery terminals, ensuring correct polarity.
7. Check Charging System:
- Start the engine and run at 5,000 rpm.
- Measure DC voltage at the battery; it should be between 14.0–15.0V.
- If not, check the magneto and regulator/rectifier.
Replace the battery if it's sulfated, has been unused in cold climate, or cannot hold charge.
This answer is automatically generated