1 month 14 days ago
Location: Cheyenne, WY, USA
What carb jets should i install in carb, 2003 yamaha TTR225 ?
live at 6065 ft. elevation, cheyenne, wyoming. installing FMF powercore4 slip-on, onto stock exhaust pipe. thank you, mick
1 month 6 days ago
Location: Portland, OR, USA
FMF is recommending you start with the stock jetting. There are too many factors that play into jetting a bike such as elevation, temperature and humidity to give an exact answer. Based upon your elevation, the jetting will end up leaner than what is stock from Yamaha so that is the direction I would go.