TUSK Compatible with KTM, Husqvarna, and GASGAS 2-Stroke Motorcycles (2006-2025 models)
Tusk 2-Stroke Transmission Oil Change Kit User Manual
Model: Compatible with KTM, Husqvarna, and GASGAS 2-Stroke Motorcycles
Introduction
This manual provides comprehensive instructions for the proper use and maintenance of your Tusk 2-Stroke Transmission Oil Change Kit. This kit is designed to facilitate a complete transmission oil change for compatible 2-stroke motorcycles, ensuring optimal performance and longevity of your vehicle's transmission system.
Kit Contents

Image: The Tusk 2-Stroke Transmission Oil Change Kit, featuring a bottle of Bel-Ray EXL 10W-40 transmission oil, a new crush washer, and a paper funnel for easy pouring.
Your Tusk 2-Stroke Transmission Oil Change Kit includes the following components:
- Bel-Ray EXL 10W-40 Transmission Oil: High-quality mineral oil formulated for 2-stroke motorcycle transmissions.
- Drain Plug Crush Washer: A new washer to ensure a leak-free seal for the drain plug.
- Disposable Funnel: For clean and easy pouring of new oil into the transmission.
Compatibility

Image: A detailed list of motorcycle models and their respective years that are compatible with this Tusk 2-Stroke Transmission Oil Change Kit.
This kit is compatible with a wide range of KTM, Husqvarna, and GASGAS 2-stroke motorcycles. Please verify your specific model and year against the list below to ensure proper fitment.
| Make | Model | Years |
|---|---|---|
| GASGAS | EC 250 (Fuel Injected) | 2022-2025 |
| GASGAS | EC 300 (Fuel Injected) | 2021-2025 |
| GASGAS | EX 250 (Fuel Injected) | 2022-2025 |
| GASGAS | EX 300 (Fuel Injected) | 2021-2025 |
| GASGAS | MC 125 | 2021-2025 |
| GASGAS | MC 150 | 2025 |
| GASGAS | MC 250 | 2022-2025 |
| GASGAS | MC 300 | 2025 |
| GASGAS | MC 65 | 2021-2025 |
| GASGAS | MC 85 17/14 | 2022-2025 |
| GASGAS | MC 85 19/16 | 2021-2024 |
| Husqvarna | TC 125 | 2014-2022 |
| Husqvarna | TC 125 (Fuel Injected) | 2023-2025 |
| Husqvarna | TC 150 (Fuel Injected) | 2025 |
| Husqvarna | TC 150 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TC 250 | 2014-2022 |
| Husqvarna | TC 250 (Fuel Injected) | 2023-2025 |
| Husqvarna | TC 250 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TC 300 (Fuel Injected) | 2025 |
| Husqvarna | TC 300 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TC 65 | 2017-2025 |
| Husqvarna | TE 125 | 2014-2016 |
| Husqvarna | TE 150 | 2017-2019 |
| Husqvarna | TE 150 (Fuel Injected) | 2020-2025 |
| Husqvarna | TE 250 | 2014-2018 |
| Husqvarna | TE 250 (Fuel Injected) | 2018-2023 |
| Husqvarna | TE 300 | 2014-2018 |
| Husqvarna | TE 300 (Fuel Injected) | 2019-2025 |
| Husqvarna | TE 300 Heritage (Fuel Injected) | 2023 |
| Husqvarna | TE 300 Heritage (Fuel Injected) | 2025 |
| Husqvarna | TE 300 Pro | 2024-2025 |
| Husqvarna | TE 300 Rockstar Edition (Fuel Injected) | 2022 |
| Husqvarna | TX 300 | 2017-2019 |
| Husqvarna | TX 300 (Fuel Injected) | 2022-2025 |
| KTM | 125 EXC | 1989-2003 |
| KTM | 125 SX | 1993-2010 |
| KTM | 125 SX | 2012-2022 |
| KTM | 125 SX (Fuel Injected) | 2023-2025 |
| KTM | 125 XC | 2021-2025 |
| KTM | 144 SX | 2007-2008 |
| KTM | 150 SX | 2009-2022 |
| KTM | 150 SX (Fuel Injected) | 2025 |
| KTM | 150 XC | 2010-2015 |
| KTM | 150 XC-W (E-Start) | 2017-2019 |
| KTM | 150 XC-W (Fuel Injected) | 2020-2023 |
| KTM | 250 EXC | 2000-2005 |
| KTM | 250 SX | 1993-2022 |
| KTM | 250 SX (Fuel Injected) | 2023-2025 |
| KTM | 250 XC | 2006-2019 |
| KTM | 250 XC (Fuel Injected) | 2020-2025 |
| KTM | 250 XC-W | 2006-2007 |
| KTM | 250 XC-W (E-Start) | 2008-2018 |
| KTM | 250 XC-W (Fuel Injected) | 2018-2025 |
| KTM | 300 SX (Fuel Injected) | 2023-2025 |
| KTM | 300 XC | 2006-2019 |
| KTM | 300 XC (Fuel Injected) | 2020-2025 |
| KTM | 300 XC-W | 2006-2007 |
| KTM | 300 XC-W (E-Start) | 2008-2018 |
| KTM | 300 XC-W (Fuel Injected) | 2019-2025 |
| KTM | 300 XC-W Erzbergrodeo (Fuel Injected) | 2020-2023 |
| KTM | 300 XC-W Hardenduro (Fuel Injected) | 2024-2025 |
| KTM | 300 XC-W Six Days | 2014-2018 |
| KTM | 300 XC-W Six Days (Fuel Injected) | 2019-2020 |
| KTM | 65 SX | 1998-2025 |
| KTM | 65 XC | 2008-2009 |
| KTM | 85 SX 17/14 | 2022-2025 |
| KTM | 85 SX 19/16 | 2022-2025 |
Setup and Preparation
Before beginning the oil change process, ensure you have the following:
- Appropriate tools (e.g., wrench for drain plug, torque wrench).
- Oil drain pan.
- Clean rags or shop towels.
- Safety glasses and gloves.
- Your motorcycle's owner's manual for specific oil capacity and torque specifications.
Procedure:
- Warm up the engine slightly (a few minutes of idling) to allow the oil to flow more easily.
- Place the motorcycle on a level surface, ideally on a stand, to ensure stability and complete oil drainage.
- Locate the transmission oil drain plug and fill plug/level check bolt on your motorcycle. Refer to your owner's manual if unsure.
Operating (Oil Change Procedure)
Follow these steps carefully to change your transmission oil:
- Position the oil drain pan directly beneath the transmission drain plug.
- Carefully remove the drain plug. Be prepared for oil to flow out immediately. Allow all old oil to drain completely.
- Inspect the drain plug and the area around it for any debris or damage. Clean the drain plug thoroughly.
- Replace the old crush washer with the new one provided in the kit. This is crucial for preventing leaks.
- Reinstall the drain plug and torque it to the specification found in your motorcycle's owner's manual. Do not overtighten.
- Locate the transmission oil fill plug. Remove it.
- Using the provided funnel, slowly pour the new Bel-Ray EXL 10W-40 transmission oil into the fill hole. Refer to your motorcycle's owner's manual for the exact oil capacity.
- Once the correct amount of oil is added, or the oil level reaches the specified mark (if applicable), reinstall the fill plug and torque it to specification.
- Clean up any spilled oil with a rag.
- Properly dispose of the old oil at an authorized recycling center.
Maintenance
Regular transmission oil changes are vital for the longevity and performance of your motorcycle's transmission. Adhere to the oil change intervals recommended in your motorcycle's owner's manual. Typically, this is based on hours of operation or mileage, and often coincides with other routine maintenance tasks.
Always use high-quality transmission oil like the Bel-Ray EXL 10W-40 provided in this kit to ensure proper lubrication and protection against wear.
Troubleshooting
- Oil Leak After Change:
Check the drain plug and fill plug for proper torque. Ensure the new crush washer was installed correctly and is not damaged. If the leak persists, inspect the sealing surfaces for damage or cracks.
- Incorrect Oil Level:
If the oil level is too low, add more oil slowly until the correct level is reached. If too high, carefully drain a small amount until the correct level is achieved. Always refer to your owner's manual for the precise method of checking the oil level.
- Difficulty Draining Old Oil:
Ensure the engine was slightly warmed up. If the oil is still thick, it may be very old or contaminated. Ensure the motorcycle is on a level surface to allow complete drainage.
Specifications
| Brand | TUSK |
| Oil Viscosity | Bel-Ray EXL 10W-40 |
| Kit Type | 2-Stroke Transmission Oil Change Kit |
| ASIN | B09MMMXRHJ |
| Date First Available | October 16, 2023 |
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