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NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288

  • Part #:
    579756
  • Manufacturer Part #:
    1100-1288
This item is no longer available
Overview of NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288
  • NCY GY6 150 61mm Cylinder Kit w/o head 62.9mm outer sleeve diameter.
  • Give your GY6 based scooter some serious power with this bolt on 171.3cc kit for most GY6 125/150cc engines.
  • As far as we know, this is the only 61mm cylinder kit for the GY6 engine that exists in the US.
  • With most 61mm cylinder kits, you have to cut the engine cases in some way to make it fit (Outer Cylinder Skirt Diameter: 65mm). Not so with this kit (Outer Cylinder Skirt Diameter: 62.9mm).
  • It also has a light weight cut-down piston to increase performance even more.
  • It’s highly recommended to jet this kit significantly rich because of its high performance capability.
  • To maximize performance and efficiency, it’s recommended to get our 61mm big valve head as well. Some stock heads may not fit.
  • Have a look at our Decompression Tube Assembly, which replaces your dipstick and allows excess crank case pressure to be released. It’s a good idea to install one of these alongside any cylinder kit upgrade.

Fits: Genuine
GY6 125/150cc
Size: 62.9mm Outer Cylinder Skirt Diameter



Included Items:

(1) Cylinder head assembly

(1) Cylinder head gasket

(1) Cylinder base gasket

(1) Wrist pin

(2) Circlips

(1) Top ring

(1) Spacer ring

(1) Secondary ring

(2) Rail ring

No instructions

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

Specs for NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288

Type Top End Kit w/Cylinder
Units Each
Weight 3.15 lbs

UPC Code:

812722023171
Specs for NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288
Type Top End Kit w/Cylinder
Units Each
Weight 3.15 lbs
Fitment for NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288
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Part 579756 fits the following machines

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Instructions and Manuals for NCY 61mm Cylinder Kit for GY6 125/150cc Engines - 1100-1288

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