This pdf document will guide you through removal/installation of variator pulleys for Yamaha engines, including:
3KJ, 3YK, 3YJ Jog, Vino
3WF Axis 90, Jog 90
Yamaha engine codes: 3KJ, A101E, A102E, A105E, A113E, A117E, A119E, A125E
Also applies to many clone engines including European Minarelli engines, Taiwanese CPI, CMG plus some Chinese engines including type designated 1PE40QMB
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