2008 yamaha BWS 100 upgrade info

Discussion in 'Scooter Tuning' started by Peter N, Jun 28, 2020.

  1. Peter N

    Peter N New Member

    Messages:
    4
    Hi people, yes ive been upgrading the Minarelli engine on the yamaha Zuma BWS 100, whats been done so far. Big bore kit with 55mm piston which has taken the it out to 113cc. Malossi Manifold & Dellorto 22 mm phvb carb with 128 main jet for a start now just dropped down to 125. Foam air pod cleaner. Masolli variator 2000 with 9.3 gram rollers.
    Sports exhaust, not sure On brand but is free flowing.
    So now this scooter has good torque for hills, thumps up the hills easy. Quick off the line & if you want throttle its there with no flats spots, increase speed by about 20-25 kph.

    hope this help others on the site.
     
    Last edited: Jul 3, 2020
    KSB246 likes this.

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