Upgrade the power delivery of your two-stroke motocross bike with the FMF Fatty Pipe, manufacturer part number 024000 and vendor part number 78-1312. Designed for an all-around increase throughout the power range, this expansion chamber helps provide strong, usable performance from low-end response through the upper RPM range. The Fatty model is a versatile choice for riders who want broader power without focusing exclusively on maximum torque or top-end output.
Feature: Electro-nickel-plated finish resists chipping and discoloration for a durable appearance and long-lasting protection. The coating is applied to the FMF pipe body, while the factory-style pipe option uses hand-pounded welds and no coating, similar to the pipes used on works bikes. Feature: Broad power improvement supports stronger acceleration and improved rideability across the powerband. Feature: FMF Fatty design offers balanced performance for motocross, practice riding, and varied track conditions.
The FMF Fatty Pipe 024000 fits 2002 through 2011 Yamaha YZ85 models. It is engineered as a direct-fit performance replacement for riders seeking more responsive two-stroke power while retaining a practical, all-around power character. Confirm the motorcycle year and model before ordering to ensure proper fitment. FMF is the brand and manufacturer associated with this performance exhaust component, and 78-1312 is the vendor part number.
Features:
- Electro-nickel-plated finish helps resist chipping and discoloration
- Fatty expansion chamber provides an all-around power increase throughout the RPM range
- Balanced power delivery improves acceleration and rideability across the powerband
- Designed for direct fitment on 2002–2011 Yamaha YZ85 models
- Brand: FMF
- Manufacturer part number: 024000
- Vendor part number: 78-1312
Fitment:
2002 Yamaha YZ85
2003 Yamaha YZ85
2004 Yamaha YZ85
2005 Yamaha YZ85
2006 Yamaha YZ85
2007 Yamaha YZ85
2008 Yamaha YZ85
2009 Yamaha YZ85
2010 Yamaha YZ85
2011 Yamaha YZ85
2012 Yamaha YZ85
2013 Yamaha YZ85
2014 Yamaha YZ85
2015 Yamaha YZ85
2016 Yamaha YZ85
2017 Yamaha YZ85
2018 Yamaha YZ85