Same-day shipping cutoff: Noon Pacific Time

It's never too early to start thinking about the next calendar photo contest.  Submit your photos here all year round to be considered in next years calendar and maybe win a prize too! 

Search Products

Category
Model
Year

Accelerator Pump Spring, FCR-MX

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
DR650 '96 - '25 CRF150R '07 - '18 CRF250R '04 - '25 CRF450R '02 - '25 CRF450X '03 - '25 KX250F '04 - '25 KX450F '06 - '25 WR250F '01 - '25 YZ250F '01 - '25 YZ450F '03 - '25

Direct replacement for the stock spring and exactly like the old Merge Racing spring. Gives a much more consistent accelerator pump squirt. Eliminates the need for the 'O-ring mod', wire or zip-ties on the pump arm. Fits all Keihin FCR-MX carbs except '07-'08 CRF250/450.

Not for the stock DR650 carburetor Fits FCR-MX conversion Only

Ships same business day
$29.95