Same-day shipping cutoff: Noon Pacific Time

Spring time is in full swing here at ProCycle.  With these busy days please be sure to let us know if your order is time sensitive.  We try to do as much as we can to accommodate your upcoming trip.  

Fuel and Intake

Carburetors, Jet Kits, Air Filters, Fuel Filters, EFI Control Modules

Basic Carburetors Tech Talk: https://youtu.be/KGR6-RsXVKg

KLX140(R) '08 - '25 KLX140L(RL) '08 - '25 KLX140G(RF) '17 - '25

K&N Replacement filters are designed for all street legal and off road motorcycles and ATVs to O.E.M. (manufacturers) size specifications and fit into your original OEM air box without modification of jet changes. Due to design and unique high flow characteristics, K&N filters allow engines to breathe free and produce optimum horsepower. Under most conditions K&N air filters never need to be replaced. With proper cleaning and care, K&N air filters will last the life of your engine.

Please contact us for availability information
$89.95
KLX140(R) '08 - '25 KLX140L(RL) '08 - '25 KLX140G(RF) '17 - '25

Dual stage foam: 2 different pore sizes create more trapping area for even the smallest dust particles.

Flame laminated foam: Both "Stages" are not glued but heat sealed to provide maximum air flow.

Light color foam makes it easier to see where the filter oil has covered and where it has not.

Choose Filter
Please contact us for availability information
$30.95
KLX140(R) '08 - '25 KLX140L(RL) '08 - '25 KLX140G(RF) '17 - '25

Twin Air Filter's patented design, high quality materials and superior construction deliver unbeatable performance and protection - and make Twin Air Filters the hands-down choice of more World and National Champions than all other filters combined.

An air filter is your engine's only protection against the elements, and your stock filter isn't up to the task. Replace it with a Twin Air- the number 1 filter system proven on motocross tracks around the world.

Twin Air's fused layers of open-pore foam and fine inner foam trap even the smallest particles-without restricting airflow

Ships in 3-5 business days
$35.95
KLX140(R) '08 - '20 KLX140L(RL) '08 - '20 KLX140G(RF) '17 - '21

This kit includes all necessary components to repair your carburetor.

O.E.M. jet sizes are included in the kit.

Please contact us for availability information
$34.95
KLX140(R) '16 - '25 KLX140L(RL) '16 - '25 KLX140G(RF) '17 - '25

Perfect for Dirt Bikes with a stock engine using the stock airbox, air filter, and pipes.

Stage 1 Jet Kits are engineered to improve throttle response and deliver approximately 5% more horsepower than stock.

These kits are fully adjustable to allow the use of well-designed aftermarket pipes and stock replacement air filters, like K&N.

Ships in 3-5 business days
$99.95