• Your shopping cart is empty!

GY6 80cc Cylinder Assy (47mm)

  • GY6 80cc Cylinder Assy (47mm)
Continue

81cc(GY6 Big Bore) high performance cylinder kit for 50cc GY6 139QMB scooter engines.

This scooter upgrade kit is a high quality kit that is perfect for upgrading your old 50cc 139QMB engine to 81cc so you don't get left behind in today's fast paced world.

Installing this upgrade kit will increase your engine bore size to 81cc, and includes an aluminum cylinder, piston, piston rings, and gaskets.

After installation, you will see an immediate increase in low end acceleration and an increase in top speed!

This 81cc scooter cylinder kit does not include the cylinder head. Combine this cylinder head with a high performance carburetor and exhaust for an even larger boost in performance.

QTY in Box: 12PCs/CTN

Mortch Motor parts supported the Brands of BAOTIAN, BASHAN, BENZHOU, CFMOTOR, CHARMING, DAYANG, DINLI, FUXIN, GEELY, GILERA, HANGLONG, HAOJIN, HAOJUE, HISUN, HONGZHOU, HUATIAN, JIAJUE, JIANSHE, JINLUN, JMSTAR, JONWAY, KAITONG, KEEWAY, KINROAD, KYMCO, LIFAN, LINGBEN, LINGTIAN, LINHAI, LINTEX, LONCIN, LONGJIA, MAWI, MEIDUO, MOTORRO, PIAGGIO, QINGQI, RHON, RIEJU, SACHS, SHINERAY, SKYGO, SUKIDA, TAOTAO, VESPA, VONROAD, WANGYE, WONJAN, XINGYUE, XINLING, XINTIAN, YIBEN, YINGANG, ZHONGYU, ZNEN, ZONGSHEN, etc.
Note:
1. Please make sure this parts fits your particular model. Many bikes have the same name but use different parts depending on the year of manufacture.
2. The photos are for your reference only, and the goods is subject to the real product which you will receive.
3. Import duties, taxes and other customs related charges are not included. Buyers bear all responsibility for all extra charges incurred (if any).
    Product QR Code
  • Brand: Mortch Motor
  • Product Code: MIGY80-4003
  • Product Viewed: 32662
    •
  • Availability: In Stock
  • Weight: 1.00kg
  • Packing Size: 12.00 x 15.00 x 14.00cm
    •

  • $12.53

  • $11.50

  • Discount: $1.03    You Save: 8%



Payment Options:

Delivery Options:

Share |

Related Products

GY6 50cc Cover of Cylinder Head Non EGR

GY6 50cc Cover of Cylinder Head Non EGR
MIGY50-4001A

This is a new 4-bolt, Non-EGR Valve and Cam Cover for the GY6 50cc 139QMB engine. This cover comes complete ready to install. QTY in Box: 22PCs/CT..

$3.13

GY6 50cc Cylinder Block(39mm)

GY6 50cc Cylinder Block(39mm)
MIGY50-4004

50cc Cylinder fits all GY6 139QMB/QMA engine QTY in Box: 12PCs/CTN ..

$7.50

GY 60cc Cylinder Head (44mm) Non-EGR

GY 60cc Cylinder Head (44mm) Non-EGR
MIGY60-4002A

There are 2 Cylinder Head versions being factory installed in GY6 scooter engines. They differ only in the valve length. The old version ships in a..

$11.24

GY6 60cc Cylinder Assy (44mm)

GY6 60cc Cylinder Assy (44mm)
MIGY60-4003

50cc scooter cylinder kit is great for increasing overall performance on small underpowered 50cc GY6 QMB139 scooter engines. Engine kit increas..

$11.50 $12.53

GY6 60cc Cylinder Block (44mm)

GY6 60cc Cylinder Block (44mm)
MIGY60-4004

Scooters with 50cc 4-stroke cylinders(139QMB, 144QMC, 147QMD) are becoming more and more common on the roads. Unfortunately, they have poor perform..

$10.25

GY6 60cc Piston Assy (44mm)

GY6 60cc Piston Assy (44mm)
MIGY60-4005

An affordable 60cc replacement piston in standard quality for 4 stroke Chinese cylinders with 44mm bore. The GY6 replacement piston comes with piston..

$3.75

GY6 60cc Piston Ring (44mm)

GY6 60cc Piston Ring (44mm)
MIGY60-4006

An affordable 60cc replacement piston ring in standard quality for 4 stroke Chinese cylinders with 44mm bore. The GY6 replacement piston comes with ..

$2.13

GY 80cc Cylinder Head (47mm) Non-EGR

GY 80cc Cylinder Head (47mm) Non-EGR
MIGY80-4002A

There are 2 Cylinder Head versions being factory installed in GY6 scooter engines. They differ only in the valve length. The old version ships in alm..

$11.24

GY6 80cc Cylinder Block (47mm)

GY6 80cc Cylinder Block (47mm)
MIGY80-4004

Scooters with 50cc 4-stroke cylinders are becoming more and more common on the roads. Unfortunately, they have poor performance, so it's not a bad ..

$10.25

GY6 80cc Piston Assy (47mm)

GY6 80cc Piston Assy (47mm)
MIGY80-4005

An affordable 72cc replacement piston in standard quality for 4 stroke Chinese cylinders with 47mm bore. The GY6 replacement piston comes with pist..

$3.75

GY6 80cc Piston Ring (47mm)

GY6 80cc Piston Ring (47mm)
MIGY80-4006

An affordable 72cc replacement piston ring in standard quality for 4 stroke Chinese cylinders with 47mm bore. The GY6 replacement piston ring comes ..

$1.86

GY6 80cc Keihin Carburetor Assy PD19 w/ Accelerator

GY6 80cc Keihin Carburetor Assy PD19 w/ Accelerator
MIGY80-4081A

80cc scooter CVK carburetor designed specifically for GY6 QMB139 4 stroke scooter, ATV, and dirt bike engines. This carburetor is equipped with an ..

$16.00 $16.86

GY6 50cc Crankcase RH

GY6 50cc Crankcase RH
MIGY50-4009

An excellent inexpensive replacement Crankcase RH. ..

$11.25

GY6 50cc Cover of Crankcase RH

GY6 50cc Cover of Crankcase RH
MIGY50-4011

This is the engine casing that has the oil filler hole as part of the casing itself. Fits pretty well all 50cc four stroke scooter models...

$6.00

GY6 50cc Left Side Cover 40cm/43cm

GY6 50cc Left Side Cover 40cm/43cm
MIGY50-4012

This is the complete belt cover for the GY6 50cc 139QMB scooter. This cover comes in black only and is generally easy to install. Available in 40cm..

$9.75 $10.34

GY6 50cc Crankcase LH (40cm/43cm)

GY6 50cc Crankcase LH (40cm/43cm)
MIGY50-4008

An excellent inexpensive replacement Crankcase LH, Available in 40cm(10" rim), 43cm(12" rim). ..

$21.25

GY6 50cc Camshaft assy

GY6 50cc Camshaft assy
MIGY50-4016

One of the cheapest ways to get real performance tuning. Working closely together with various 4-stroke scooter manufacturers, we have managed to i..

$5.50

GY6 50cc Valve Rocker Arm

GY6 50cc Valve Rocker Arm
MIGY50-4017

One of the cheapest ways to get real performance tuning. Working closely together with various 4-stroke scooter manufacturers, we have managed to i..

$1.75

GY6 50cc Camshaft Holder

GY6 50cc Camshaft Holder
MIGY50-4019

One of the cheapest ways to get real performance tuning. Working closely together with various 4-stroke scooter manufacturers, we have managed to in..

$4.00

GY6 50cc 125cc 150cc Spark Plug (A7TC)

GY6 50cc 125cc 150cc Spark Plug (A7TC)
MIGY50-4022

The thermal grade of the spark plug is of prime importance with tuning kits. If the wrong grade is used the kit will overheat or the spark plug wil..

$0.53 $0.59

GY6 50cc Variator Belt (669*18*30)

GY6 50cc Variator Belt (669*18*30)
MIGY50-4037

669 (First number in the series) = The length of the belt in millimeters. 18 (Second number in the series) = The width of the belt in millimeters. 30..

$1.99 $2.25

GY6 50cc 8 Pole Stator 4 Wires

GY6 50cc 8 Pole Stator 4 Wires
MIGY50-4039A

8 coil stator magneto commonly used on 4-stroke 50cc, 125cc and 150cc GY6 scooter engines. Also sometimes referred to as a stator comp. ..

$4.90

GY6 50cc Full Set of Gasket 40cm/43cm/46cm

GY6 50cc Full Set of Gasket 40cm/43cm/46cm
MIGY50-4064

This 10 piece gasket kit is perfect for rebuilding your tired chinese built GY6 QMB139 10" and 12" case engine.Kit includes: # Cam Chain Adjuster Gas..

$1.52

GY6 50cc Shaft of Inlet/Exhaust Valve Rocket

GY6 50cc Shaft of Inlet/Exhaust Valve Rocket
MIGY50-4020

One of the cheapest ways to get real performance tuning. Working closely together with various 4-stroke scooter manufacturers, we have managed to in..

$0.63

GY6 50cc Adjust Nut and Screw for Valve Clearance

GY6 50cc Adjust Nut and Screw for Valve Clearance
MIGY50-4021

An excellent replacement for the scooter's Adjust Nut and Screw for Valve Clearance...

$0.37

GY6 50cc Guide of Valve

GY6 50cc Guide of Valve
MIGY50-4025

A replacement Guide of Valve for GY6 4 stroke engine, make the timing chain working more stable. ø15.55mm ø10.00mm ø5.00mm 28.00mm ..

$1.04

GY6 50cc Chain Tensioner

GY6 50cc Chain Tensioner
MIGY50-4046

A replacement Adjusting tensioner for GY6 engine, easily tight the timing chain. ..

$1.20

GY6 50cc Full Set of Oil Seal

GY6 50cc Full Set of Oil Seal
MIGY50-4054

This complete seal set includes most of the engine and chassis joint shaft sealing rings in OEM quality. The seal set consists 4 seals the foll..

$0.80

GY6 50cc Gear of Fuel Reduce

GY6 50cc Gear of Fuel Reduce
MIGY50-4055

A replacement Gear of Fuel Reduce for GY6 4 stroke engine. Inner: 19T Outer: 51T Diameter: 81mm Thickness: 15.5mm ..

$6.25

GY6 Air Filter Element

GY6 Air Filter Element
MIGY50-4079-3

Two-layer air filters for original airboxes. The two layers ensure optimal airflow combined with excellent filtering characteristics...

$1.16

GY6 125cc Cylinder Head (52.4mm) Non-EGR

GY6 125cc Cylinder Head (52.4mm) Non-EGR
MIGY125-3002A

A replacement cylinder head for the GY6 air cooled aluminium cylinder. QTY in Box: 18PCs/CTN ..

$9.75

GY 80cc Piston (47mm)

GY 80cc Piston (47mm)
MIGY80-4007

An affordable 72cc replacement piston in standard quality for 4 stroke Chinese cylinders with 47mm bore. The GY6 replacement piston comes with piston..

$2.15

GY6 50cc Left Side Cover 46cm

GY6 50cc Left Side Cover 46cm
MIGY50-4012C

This is the complete belt cover for the GY6 50cc 139QMB scooter. This cover comes in black only and is generally easy to install. Available in 40cm..

$14.00

GN125 Cylinder Block

GN125 Cylinder Block
MIGN125-5004

Standard (57mm) Barrel Kit, 157FMI, fits Engines of Chinese made SIZUKI EN125, GN125, GS125, etc. QTY in Box: 12PCs/CTN ..

$18.50

GY6 60cc Full Set of Gasket 40cm/43cm/46cm

GY6 60cc Full Set of Gasket 40cm/43cm/46cm
MIGY60-4064

This 10 piece gasket kit is perfect for rebuilding your tired chinese built GY6 QMB139 10" and 12" case engine. Kit includes: # Cam Chain Adjuster G..

$1.66

GY6 80cc Full Set of Gasket 40cm/43cm/46cm

GY6 80cc Full Set of Gasket 40cm/43cm/46cm
MIGY80-4064

This 10 piece gasket kit is perfect for rebuilding your tired chinese built GY6 QMB139 10" and 12" case engine. Kit includes: # Cam Chain Ad..

$1.78

GY6 50cc 8 Pole Stator 5 Wires

GY6 50cc 8 Pole Stator 5 Wires
MIGY50-4039B

8 coil stator magneto commonly used on 4-stroke 50cc, 125cc and 150cc GY6 scooter engines. Also sometimes referred to as a stator comp. 5 wires..

$4.90

GY6 50cc Cylinder Stud Bolt

GY6 50cc Cylinder Stud Bolt
MIGY50-4028

GY6 Cylinder Stud Bolt for GY6-1P39QMB, GY6-1P44QMC, GY6-1P47QMD, GY6-1P50QMG, etc These are the four bolts that screw into the right and left cra..

$1.35

GY6 Half Gasket 50cc/60cc/80cc/90cc

GY6 Half Gasket 50cc/60cc/80cc/90cc
MIGY50-4063A

A complete engine half gasket set for 50cc 4 stroke GY6 scooters (type 139QMB / 139QMA). MIGY50-4063        50cc ..

$0.43

GY6 Cylinder Head Gasket

GY6 Cylinder Head Gasket
MIGY50-4063B

40 mm inner diameter cylinder head gasket for many Chinese built 50cc GY6 139QMB engines. ..

$0.23

GY6 100cc Cylinder Head (50mm) Non-EGR

GY6 100cc Cylinder Head (50mm) Non-EGR
MIGY90-4002A

There are 2 Cylinder Head versions being factory installed in GY6 scooter engines. They differ only in the valve length. The old version ships in alm..

$12.24

GY6 100cc Piston (50mm)

GY6 100cc Piston (50mm)
MIGY90-4007

An affordable 100cc replacement piston in standard quality for 4 stroke Chinese cylinders with 50mm bore. The GY6 replacement piston comes with pis..

$1.88

GY6 100cc Piston Assy (50mm)

GY6 100cc Piston Assy (50mm)
MIGY90-4005

An affordable 100cc replacement piston in standard quality for 4 stroke Chinese cylinders with 50mm bore. The GY6 replacement piston comes with pis..

$3.75

GY6 100cc Piston Ring (50mm)

GY6 100cc Piston Ring (50mm)
MIGY90-4006

An affordable 100cc replacement piston ring in standard quality for 4 stroke Chinese cylinders with 50mm bore. The GY6 replacement piston ring come..

$1.98

Gates PowerLink GY6 50cc CVT Belt 669 18.1

Gates PowerLink GY6 50cc CVT Belt 669 18.1
MIGY50-G4037A

Premium quality Gates Powerlink 669 18.1 scooter CVT belt. Fits automatic CVT street scooters as well as many ATVs, dirt bikes, and go karts.Premiu..

$5.58

GN125 Cylinder Assy

GN125 Cylinder Assy
MIGN125-5003

Standard (57mm) Barrel Kit, 157FMI, fits Engines of Chinese made SIZUKI EN125, GN125, GS125, etc. This kit comes complete with piston, rings, pin &am..

$23.75

GY6 Stator Trigger

GY6 Stator Trigger
MIGY50-4039Z

The Magneto Stator Ignition Pick Up Trigger fits for GY6 50cc-150cc engine.Length: 27mmWidth: 22mmHeight: 20mmInstallation hole spacing: 30mm..

$0.50

GY6 50cc O-Ring of Cylinder Head Cover

GY6 50cc O-Ring of Cylinder Head Cover
MIGY50-4001Z

This is the replacement Valve Cover Gasket/O-Ring for both the EGR and Non-EGR type Cylinder head for the 4 stroke GY6 50 139QMB engine.107*99*2.5mm..

$0.20

GY6 80cc Kunfu Carburetor Assy PD19

GY6 80cc Kunfu Carburetor Assy PD19
MIGY80-K4081

80cc scooter CVK Kunfu carburetor designed specifically for GY6 QMB139 4 stroke scooter, ATV, and dirt bike engines. This carburetor is equipped wi..

$15.50

GY6 50cc Cover of Cylinder Head w/ EGR

GY6 50cc Cover of Cylinder Head w/ EGR
MIGY50-4001B

This is a new 4-bolt, EGR Valve and Cam Cover for the GY6 50cc 139QMB engine. This cover comes complete ready to install. QTY in Box: 22PCs/CTN..

$6.60

GY6 125cc Cylinder Head (52.4mm) EGR

GY6 125cc Cylinder Head (52.4mm) EGR
MIGY125-3002B

A replacement cylinder head for the GY6 air cooled aluminium cylinder. QTY in Box: 18PCs/CTN ..

$10.20

Mitsuboshi GY6 50cc CVT Belt 17.7*681-32

Mitsuboshi GY6 50cc CVT Belt 17.7*681-32
MIGY50-M4037A

Mitsuboshi GY6 50cc CVT Belt 17.7*681-32 scooter CVT belt. Fits automatic CVT street scooters as well as many ATVs, dirt bikes, and go karts.Premium ..

$5.58

Bando GY6 50cc CVT Belt 669 18 30

Bando GY6 50cc CVT Belt 669 18 30
MIGY50-B4037A

Premium quality Bando 669 18 30 scooter CVT belt. Fits automatic CVT street scooters as well as many ATVs, dirt bikes, and go karts.Premium quality..

$5.58

Tags: 139QMB, 144QMC, 147QMD, 80cc upgrades, Big Bore Kit, Block, Cylinder, GY6, High Performance, Set Motor