Review on NICECNC Orange Air/Fuel Mixture Screw Adjuster for Keihin FCR Carb, Fits Honda Yamaha Kawasaki Suzuki CRF YZF WR KXF KLX RMZ Motorcycles by Jeff Kersey

Used on the YX140 Piranha engine with Mukuni vm22 carburetor. It fits exactly! All I had to do was use the VM22 coil spring and it was done! This isn't said to work with Mikuni carbs, but it works great. It made setting up that screw (which you can't reach) a breeze! Just ordered a second one for another project with a vm26 carb (checked the first extended bolt on it for proper seating and it fits right. 5 stars! .