EZ-Just Mixture Screw

The original EZ-Just® mixture screw for Harley CV carburetors adjusts the air idle mixture. Easily tune and adjust your idle mixture without burning your hands or fumbling with a screwdriver. CV Performance has exclusively provided Harley riders with the EZ-Just® for over 30 years.

There is only one original EZ-Just®
Beware of cheap import knock offs! Read more below. 

Compatible with all Harley CV style carburetors and replaces the stock mixture screw. Available for CV and CVK Keihin carburetors 1990-2006. Not for use on pre-90 big twins or pre-89 Sportsters.

For pre-89 "butterfly" style Harley carburetors use our EZ-Just for the 81-87 Harley Keihin.

Fitment:
Harley-Davidson CV Carburetor 1989-2006.
Buell V-twin models with CV Carburetor.
Buell Blast models.
*Kawasaki and KLR CVK40, CVK36, and CVK34 carburetors.¹
*Triumph Bonneville, T100, Thruxton, Scrambler, America and Speedmaster fitted with single CVK40, CVK36, and CVK34 carburetors.¹
*Arctic Cat fitted with CVK36-34.¹
*Others fitted with Keihin CVK36-34.¹
Will NOT fit Prairie models. 
*See fitment disclaimer below.

Packing parts (spring, washer, o-ring) sold separately if required: Mixture Packing Kit

^*1 Fitment on non-Harley models: Non Harley models listed are reported to fit by customer experience only and have not been tested by CV Performance on all CVK models or other makes of motorcycle. For use on single carburetor models only.
Purchase for use on makes other than Harley-Davidson or Buell is at the buyer's discretion.

Not for use on multi-carburetor (4-carb) models.

Tuning and installation tips for the EZ-Just mixture screw.

Not for use or sale in California

EZ-Just® is the registered trademark of CV Performance Inc.

WARNING: Beware of cheap import knock offs. EZ-Just® is the original, and the only mixture screw manufactured right here in the United States to our standards created over 30 years ago. Products using similar names and stolen images are poor quality copies that do not meet the original standards we created. Don't be fooled, ONLY the EZ-Just® made by CV Performance Inc carries our trademarked name and comes in our branded packaging. 

The CVP EZ-Just will fit the following motorcycle makes and models.

Harley-Davidson CV Carburetor 1990-2006.
Buell with CV Carburetor 1992-2006.
Kawasaki CVK40, CVK36, and CVK34 carburetors.¹
Triumph fitted with CVK36-34.¹
Arctic Cat fitted with CVK36-34.¹
Other fitted with Keihin CVK36-34.¹

¹Non Harley models listed are reported to fit by customer experience only and have not been tested by CV Performance on CVK models or other makes of motorcycle. Purchase for use on makes other than Harley-Davidson or Buell is at the buyer's discretion.