FMF Gold Series Fatty Head Pipe 024023 — 1983-2025 Yamaha PW50
Product Description
The FMF Gold Series Fatty Head Pipe is computer-designed and dyno-tested to generate power gains right where your Yamaha PW50 needs them the most. Providing a broad, tractable powerband, it is the ultimate expansion chamber upgrade for youth 2-stroke performance.
Built using FMF's Tru-Flo stamping process for a precise, perfect fit and optimum exhaust scavenging, this pipe is constructed from high-strength 19-gauge carbon steel with a durable nickel-plated finish. Weighing just 1.8 lbs, it delivers rugged reliability without adding unnecessary weight.
Top Features: FMF Gold Series Fatty
- Computer-designed and dyno-tested to make power gains where each machine needs them the most.
- Tru-Flo stamping process ensures a precise fit and optimum performance[cite: 1].
- Constructed of strong 19-gauge steel with a bright nickel-plated finish[cite: 1].
- Lightweight design weighing only 1.8 lbs[cite: 1].
Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.
Fitment List
| Year Range |
Vehicle Brand |
Vehicle Model & Sub-Model |
| 1983-2009, 2013-2025 |
Yamaha |
PW50 |
Frequently Asked Questions
Q: Does this head pipe fit all modern and vintage Yamaha PW50 models?
A: Yes, it fits Yamaha PW50 models spanning from 1983 through 2009, and 2013 through 2025[cite: 1].
Q: What material is the Fatty expansion chamber made of?
A: It is constructed from robust 19-gauge steel and finished with a nickel-plating for corrosion resistance[cite: 1].
Expert Pro-Tip
Expert Pro-Tip: Always replace your exhaust O-rings and springs when installing a new expansion chamber on a 2-stroke. Worn-out seals allow unburned oil and exhaust pressure to leak at the cylinder spigot, which diminishes low-end power and leaves a messy residue on your engine cases.
Recommended Pairings:
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