Product Details
DESCRIPTION: YMS V8 performance exhaust for Yamaha Jog in raw steel with a clear coat finish. Fits other makes and models with Minarelli clone engines, please check specifications for more information.For Use With 70-100cc CylindersHead Pipe Inner Diameter: 24mmBolt Hole Spacing (flange): 48mmRear Mounting Bracket Bolt Spacing: 94mmMade in Taiwan40QMB 50cc 2-stroke, Various unlisted makes/models, Yamaha Jog
SPECIFICATIONS: for more information.For Use With 70-100cc CylindersHead Pipe Inner Diameter: 24mmBolt Hole Spacing (flange): 48mmRear Mounting Bracket Bolt Spacing: 94mmMade in Taiwan40QMB 50cc 2-stroke, Various unlisted makes/models, Yamaha Jog
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 100cc, Minarelli, 2-Stroke
- Fits Models / Common Applications: Yamaha and other compatible models may apply.
- Fitment Notes: Performance, Clone / Chinese
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 9 lbs |
|---|---|
| Dimensions | 30 × 9.5 × 7 in |
YMS V8 Raw Steel Performance Exhaust
Transform your 2-stroke's powerband with the YMS V8 Yamaha Jog Performance Exhaust. Specifically engineered for 70cc to 100cc Big Bore builds, this high-flow system is designed to maximize exhaust scavenging and top-end RPMs. Featuring a "Raw" industrial finish with a protective clear coat, the V8 provides an aggressive racing aesthetic and a deep, crisp exhaust note that defines the Minarelli tuning scene.
Technical Performance Features
- Engineered for Big Bore Kits: Tuned expansion chamber geometry specifically designed to complement 70cc-100cc cylinders for significant gains in mid-range torque.
- 24mm High-Flow Header: Features a 24mm inner diameter to reduce backpressure, allowing your 2-stroke engine to breathe freely at peak RPMs.
- Raw Steel Aesthetic: Finished in raw steel with a high-temp clear coat, showing off the precision welds for a custom "garage-built" racing look.
- Precision Taiwanese Manufacturing: Crafted by YMS in Taiwan, ensuring superior fitment and weld integrity compared to generic performance pipes.
Comprehensive Fitment Guide
This exhaust is designed for Minarelli-style 50cc (1PE40QMB) 2-stroke engines and their big-bore variants:
| Brand | Compatible Models |
|---|---|
| Yamaha | Jog (3KJ, 3YK, 4JP, 4LV), Zuma (Pre-2002), Riva 50 |
| Adly | Silver Fox, Thunder Bike, Panther 50 |
| Chinese Clones | Various 1PE40QMB / Minarelli horizontal clones |
Technical Specifications
- Header Inner Diameter: 24mm
- Flange Bolt Spacing: 48mm
- Rear Bracket Spacing: 94mm
- Recommended Displacement: 70cc - 100cc
Mechanic's Note: The YMS V8 is a legendary "Street-Pipe" because it stays relatively quiet at idle but screams when you hit the powerband.
Installation Tip: Because this is a raw steel pipe with a clear coat, avoid touching the header with bare hands during the first heat cycle to prevent oil spots from etching into the finish.
Pro Tip: To truly unlock this pipe, ensure you are running Lighter Roller Weights to keep the engine in the V8's higher powerband!
SKU: 190-66
Vendor: YMS





