NCY GY6 150 61mm Cylinder Kit w/o head
62.5mm outer sleeve diameter.
Give your GY6 based scooter some serious power with this BOLT ON (That’s right BOLT ON!) 171.3cc kit for most GY6 125/150 engines. As far as we know, this is the only 61 mm 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. It also has a light weight cut down piston to increase performance even more. Its highly recommended to jet this kit significantly rich because of it high performance capability. In addition, its recommended to get our 61mm big valve head as well. Some stock heads will not fit.
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.
- Applies to the following models:
- Baccio
- VX150 150
- Baron
- 150-R Retro
- 150-S Sport
- 150-VLA Classic
- BMS
- Heritage 150
- Romans 150
- Fly Scooters
- Il Belo 150
- Rio 150
- Genuine
- Buddy 150
- Jonway
- SC-06 150
- YY50QT-21A 125
- Keeway
- Matrix 150
- Kymco
- People 150
- Super 8 150
- Lambretta
- UNO150
- Lance
- Cali Classic 125
- Milan/Vintage 150
- Longbo
- LB150T-12 150
- MotoFino
- 15QT-2 150
- 50QT-2 150
- Peace
- TPGS-804 150
- TPGS-822 150
- Roketa
- MC04/20/23/75 150
- MC17 Sicily 150
- Schwinn
- Graduate 150
- Hope 150
- Newport 150
- Valo 150
- SYM
- Fiddle II 125
- HD 125
- Tank
- Classic 150
- Racer 150
- Touring 150/250
- TGB
- Laser R9 150
- TN'G
- Low Boy 150
- Milano 150
- Vento
- Phantom GT5 150
- Verucci
- Galaxia 150