Stage 2 Performance Kit 4T for CSC Go!, GY6 50cc (139QMB) PKCSCGO-2

Stage 2 Performance Kit for CSC Go! and GY6 50cc Scooters

This Stage 2 upgrade is built for CSC Go! and GY6 50cc scooters running the 139QMB engine. It raises engine displacement from 50cc to 72cc, giving the scooter a noticeable performance gain. The kit also pairs well with other GY6 50cc scooter parts that help improve the efficiency and power of your ride, so it suits anyone wanting a meaningful upgrade.

What's in the Kit

This kit brings together the main pieces needed for the performance boost. You get a BIG BORE KIT that includes a head, a purpose-made carburetor, and performance rollers. It also contains a performance CDI, a foam pod air filter, and the gaskets and block-off plates required for installation. Every component is matched to the GY6 50cc engine.

Installation and Compatibility

This kit is a good fit for scooter owners who want to improve how their ride performs. The parts are designed to be simple to swap in and to work with your current setup. Note that this product is not allowed on vehicles subject to emissions regulations, so confirm your local rules before you install it.

Specifications

• Material: Aluminum, Steel
• Size: 72cc (64mm valves)
• Position: Engine
• Fits: CSC Go! and other 139QMB-engine 50cc scooters (GY6), to 72cc
• OEM Part Number: 1100-1439, 1200-1051, 1100-1361, 0900-1005, 1300-1110, Jetkh1, 1100-1256, 0500-1008, 1200-1053, 1200-1056, 1200-1161, 1200-1050

Fitment

Compatible with:

• CSC Go! (139QMB 50cc engine)
• TAO TAO (139QMB engine, for the rollers)

Browse more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Parts