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Paul in OH
Carbureted four strokes need this upgrade. Adjust lean rich mixture by hand while it's running. Pipe red hot? Richen it up by turning this screw out a half turn at a time. Sooty exhaust? Lean it out by turning screw in a bit.Read All Reviews
Keith in GA
Not a fan of this. Can never tell when it?s screwed in all the way or not. Have torn two of the tiny o-rings. I would have switched to the longer, solid screw if I had not sold the bike. Could have been user error, most people like these. Was on a CRF150rbRead All Reviews
ERNIE in CA
Although not a Keihin factory jet it is of good quality. The jet size is stamped onto the bottom (as it sits in the carb) and it pretty small for this old man to read!! I installed and it fits fine and seems to be milled to the correct size.Read All Reviews