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KYMCO ETON JONWAY SUNL BAJA VIP HIGH PERFORMANCE GY6 100CC BIG BORE KIT BBK 50MM

$ 68.61

Availability: 77 in stock
  • Bore Size: 50mm
  • Type: Big Bore & Top End Kits
  • Refund will be given as: Money back or replacement (buyer's choice)
  • Return shipping will be paid by: Seller
  • Returns Accepted: Returns Accepted
  • Condition: New
  • Engine Cycle: 4 Stroke
  • Restocking Fee: 20%
  • Brand: IMPUSA
  • Valves size: 69mm High Lift
  • Warranty: Yes
  • Part Type: Engines
  • Item must be returned within: 30 Days
  • Manufacturer Part Number: IMUCYL0029
  • Big Bore Kit: Engine Cylinder Top Bottom End Rebuild Kit

    Description

    Brand new GY6
    100CC
    BBK
    BIG BORE KIT
    for Chinese 4 stroke
    Scooters & Mopeds
    Upgrade 49cc 50cc to
    100cc
    The best way to get more RPM, the maximum upgrade kit for GY6 50cc 139qmb engine.
    We don't throw in useless parts to make the BBK look enormous. Every component is carefully selected to boost performance, not just for the show.
    Big Bore kit
    includes
    Fully assembled cylinder head
    69mm high lift valves, best performance valves
    69mm high lift rockers, best performance rockers
    Cylinder body
    Cylinder head gasket set
    Carburetor main jets upgrade kit, new carb is useless if the jets are stock size
    (added on 7/23/19)
    A9 high performance camshaft
    Piston & Rings set
    69mm
    high lift camshaft holder
    Manifold added 9/28/19
    Bore kit
    works with 139QMB engine:
    Roketa 49cc 50cc 4 stroke scooters such as Bahama, Maui, Sicily, Tank, Baotian 50QT-9
    Kymco 50cc 4 stroke
    E-Ton 49cc 50cc 4 stroke
    Taotao
    49cc 50cc 4 stroke scooters such as GT5, Fastwind,  atm50-a1, cy50-a, cy50-b, cy50-t3, funny 50, Roman 50, Retro 50, Speedy 50, Venus 50
    SUNL
    49cc 50cc 4 stroke scooters
    VIP future champion 4 stroke
    Jonway 49cc 50cc 4 stroke scooters such as warrior 50
    Baja
    49cc 50cc 4 stroke scooters such as motorsports SC-50 sun city, primo
    Zhongshen ZS50QT-4
    Baotian BT49QT-2, BT49QT-7, BT49QT-9, BT50QT-9, BT50QT-11
    Fly Scooter
    49cc 50cc 4 stroke scooters
    Tank
    49cc 50cc 4 stroke scooters
    Jinlun
    49cc 50cc 4 stroke scooters
    Multiple items can be combined shipping, please look at our other items, thank you.
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