NCY

NCY 72 cc Cylinder Kit (Cast ); QMB139/GY 50

SKU 1100-1247
$135.00
Shipping calculated at checkout.
Description

NCY GY 50/QMB139 47mm bore, Cast Iron, Cylinder Kit w/o head

Our most popular big bore kit for the QMB139/GY6 50 scooter engine, this bolt on 72cc kit really performs nicely when you combo it with part # 1100-1250, NCY Performance Camshaft. Don't forget to upjet!

NOTE:
Remove your valve from your scooter's head and meaure the full length of the valve stem. Some scooters like Znen(Wolf Brand, GMW, Bintelli, etc), Kymco 50cc 4T(Agility), some newer TaoTao and other 50cc 4-stroke scooters may have valve stem length over 64mm. For these applications use #1100-1326Rocker Arm assembly.

Have a look at our Decompression Tube Assembly which replaces your dipstick and allows excess crank case pressure to be released.

Good idea to install one of these alongside any cylinder kit upgrade.

Not legal for use in California on pollution controlled vehicles. Check local laws before installing.

This product is not intended for use on public roads or land.

  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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