170cc / 63mm Big Bore Kit w/ Cam & VM26 Carb Kit - All KLX140

TB Parts 170cc Big Bore Kit w/ High Performance Mikuni VM26 Carb and Cam Fitment: Kawasaki KLX140 (2008-2020) Kawasaki KLX140G (2017-2020) Kawasaki KLX140L (2008-2020) Kawasaki KLX140R (2021-Present*) Kawasaki KLX140RF (2021-Present*) Kawasaki KLX140RL (2021-Present*) *Fitment Note: 2025+ KLX140s – MAY require case boring to fit. Our cylinder skirt is 65.95mm and SOME 2025+ cases are only 65.4mm wide. These parts work great together for an unmatched performance increase. Starting with the complete big bore kit you get a lightweight high compression piston that is 5mm over stock making close to 50% more power. Add the 6mm larger VM26 carburetor (that utilizes the stock air box) and the bike will not only start up and idle better but it also feeds the engine more air and fuel to make more power through the powerband. Then add the performance cam and the bike will start making even more power at 5500 RPM and carry it to the top end for even larger gains. Turning your KLX140 into a race re