Tune up Kit 02 Stage1 The professional kit for tuning the Keihin CV carburetors With this kit consisting of different main jets Part-load idle jets and a special jet needle can be used to fine-tune the carburettor The scope of delivery of the Tune up Kit 02 Stage1 includes: Main jets: 160-162-165-168-175-180-182-185-190-195 Pilot jets: 42-45-48 Jet needle: Tune up Idle mixture screw: professional, adjustable by hand All necessary small parts Drill bit for removing the blind plug of the idle speed adjustment screw Drill for drilling out the vacuum bore of the slider The scope of delivery includes a complete guide to the procedure and the analysis, as well as tuning and fixing problems with the Keihin CV carburetor. Whether for OEM air filters or for aftermarket air filters. It explains how to adjust a carburetor correctly and successfully at the same time. Finally you can properly tune an original KeihinCV carburetor, without having to visit the workshop for it.