DEP Exhaust Silencer - Yamaha YZ250 - 1986-1987
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eBayDEP DEPY2204 Exhaust Silencer Yamaha YZ250 86-87 MX Motocross Off-Road
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GhostBikes.comDep Exhaust Silencer - Yamaha Yz250 1986-87
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Product Information
Full details
The DEP Exhaust Silencer is designed for vintage motocross enthusiasts who own the 1986-1987 Yamaha YZ250 and seek to improve their machine's power delivery and throttle response. Engineered in the U.K., this silencer provides a lightweight alternative to the original equipment, though riders should note that it is specific to these model years and may require fine-tuning of the carburetor for optimal performance.
All features
| Model Part Number | DEPY2204 |
|---|---|
| Brand | DEP |
Extended Product Information
FAQs
Does this silencer fit a 1985 Yamaha YZ250?
No, this specific model is engineered only for the 1986-1987 Yamaha YZ250.
Is this a street-legal exhaust?
This silencer is designed for closed-course racing and motocross use; please check local regulations for public land or street use.
Do I need to change my jetting?
It is highly recommended to check your jetting, as changing to a performance silencer changes the airflow dynamics of the engine.
Where is this silencer manufactured?
The DEP Exhaust Silencer is manufactured in the United Kingdom.
Is the mounting hardware included?
The unit is designed to utilize standard mounting points, but it is always good practice to inspect your existing bolts for wear.
Troubleshooting
Bike feels sluggish after installation
Check your carburetor jetting. Increased airflow often requires a slight increase in jet size.
Exhaust leakage at the joint
Inspect the seal and ensure the clamp is tightened to the specified torque. Use high-temp silicone sealant if necessary.
Excessive vibration
Verify that all mounting bolts are secure and that the rubber grommets are not worn out.
Pros and Cons
Pros
- Significant reduction in weight over stock components
- Improved throttle response and power output
- High-quality U.K. manufacturing
- Easy, bolt-on installation process
Cons
- Specific to 1986-1987 models only
- May require carburetor jetting adjustments
- Limited availability for other vintage models
Setup, Compatibility & Care
Compatibility is strictly limited to the 1986 and 1987 Yamaha YZ250 models. Installation involves removing the factory silencer mounting bolts and sliding the DEP unit onto the existing header pipe. Ensure all mounting brackets are tightened securely to prevent vibration damage. For maintenance, clean the exterior with a mild degreaser and check for any signs of internal packing degradation every few seasons of heavy use to maintain noise level compliance and engine performance.