How to Change Gear Oil for SYM 125 Jet Power Scooter | Maintenance Operations

Today, I want to show you how to change the gear oil for SYM 125 Jet Power scooter. Most scooters should have a gear oil change between 3000 KM to 5000 KM or 5 months.

What happens if you do not change the gear oil?

1. Corrosion to the gearbox.
2. Gear failure.
   
   

When to change the gear oil?

1. Every 5000 KM or 5 months, whichever comes first.

References:

1. SYM Parts
2. SYM Manual
   
   

Step:

1. Turn off and park the motorcycle with the main stand.
   
   

   

   
   
2. Remove gear oil refilling bolt and draining bolt.
   
   

   
   
   

   

   Removing refilling bolt

   
   
3. Note: Place a container under the oil draining bolt before removing.
   
   

   

   
   
4. Install the oil draining bolt after draining all the gear oil.
   
   

   

   
   
5. I used YAMALUBE gear oil 4T-AT for gear oil replacement.
   
   

   

   
   
6. Cut the tip of the bottle and fit with the tubing.
   
   

   

   
   
7. Fill the gear oil (0.1 liters) from the oil refilling hole.
   
   

   

   
   
8. Install the oil refilling bolt.
   
   

   

   
   
9. Start the engine and check whether the gear oil leaks after the installation.
   
   

   

   
   
10. No leaking was detected on the oil draining and refilling bolt.
    
    

    

    Refilling bolt

    
    

    

    Draining bolt

    
    

The link tools and components replacement I used in this video are listed below:

Tools/Components/Items (Shopee):

1. Spanner Set
2. Gear Oil AT 4T (YAMALUBE)

Tools/Components/Items (Lazada):

1. Spanner Set
2. Gear Oil AT 4T (YAMALUBE)

Tools/Components/Items (Aliexpress):

1. Spanner Set

Video:

That is all from me. If you have any suggestions, please write in the comment section. Thank you for your time 👷.