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You are here: Home > Parts Department > Scooter Parts > Parts by Engine Model > 50cc High Performance Engine Parts QMB139
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Big Bore kit 50 to 80cc Upgrade - 139QMB Carburetor Intake Manifold (High Performance) - GY6 125/150cc Clutch Bell - 139QMB and Honda Dio 50cc (High Performance)
Our Price: $159.95
Our Price: $35.95
Our Price: $34.95
Need more acceleration and top speed or just simply need to rebuild you head? If yes, then you need to upgrade your 50cc to an 80cc with this big bore kit. Fits the 50cc 139QMB engine.

Click on image for more info
Aluminum Intake manifold for the GY6 125 and 150cc engine.

Specifications:
Inner Diameter
Metal Side: 27.5mm
Rubber Side: 33mm
Bolt Hole Spacing: 45mm
HP Clutch Bell for the 139QMB and Honda Dio 50cc engines.
Clutch Pads - High Performance Clutch 139QMB 50cc and Honda DIO Clutch Pads - MRP High Performance Clutch 50cc 139QMB and Honda DIO (includes 3 sets of springs) Clutch Spring set - 139QMB 50cc High Performance (1000 RPM)
Our Price: $59.99
Our Price: $63.99
Our Price: $9.95
MRP High Performance Clutch 50cc
Performance Racing Clutch for the 139QMB 49.5/50cc and Honda DIO engine. High performance clutch kit for the 50cc 139QMB and Honda DIO engines.
Clutch kit includes three sets of springs.
High performance clutch springs for the GY6 / 139QMB 50cc engine.
Fits the Honda DIO and 50cc Chinese scooters.
Clutch Spring set - 139QMB 50cc High Performance (1500 RPM) Clutch Spring set - 139QMB 50cc High Performance (2000 RPM) Clutch Torque Spring - (1000 rpm) 139QMB & DIO 50cc High Performance
Our Price: $9.95
Our Price: $9.95
Our Price: $18.99
Clutch Spring set - DIO/QMB 50cc High Performance (1500 RPM) Clutch Torque Spring - (1000 rpm) DIO 50cc High Performance
High performance clutch springs for the GY6 / 139QMB 49cc engine.
Fits the Honda DIO and 50cc Chinese scooters.
High performance clutch springs for the GY6 / 139QMB 50cc engine. Click on image for more info
Clutch Torque Spring - (1500 rpm) 139QMB & DIO 50cc High Performance Clutch Torque Spring - (2000 rpm) 139QMB & DIO 50cc High Performance Exhaust - QMB 50cc High Performance Exhaust (Carbon Fiber)
Our Price: $18.99
Our Price: $18.99
Our Price: $208.99
Clutch Torque Spring - (1500 rpm) DIO 50cc High Performance Clutch Torque Spring - (2000 rpm) DIO 50cc High Performance
Click on image for more info Click on image for more info
Exhaust - QMB 50cc High Performance Exhaust (Chrome) Fuel Line - Colored Ignition Coil (High Performance) - QMB 50 to GY6 150cc
Our Price: $199.95
Our Price: $7.99
Our Price: $29.95
COIL FOR GY6 RED
Specifications:
Total Length: 39 inches
Fuel Line hole: 3/16 to 1/4

Colors: Neon Yellow, Neon Green, Neon Red and Blue
High performance ignition coil for the 50cc - 150cc 139QMB and GY6 engines.

Specifications:
Length: 17 inches
LEVER GY6 CHOPPER CHROME SET Luggage Box - Model 1 Luggage Box - Model 2
Our Price: $43.20
Our Price: $89.99
Sale Price: $59.95
You Save $30.04
Our Price: $84.99
Sale Price: $49.95
You Save $35.04
LEVER GY6 CHOPPER CHROME SET LUGGAGE BOX BLACK W/RED LAMP LUGGAGE BOX BLACK W/RED LAMP
LEVER GY6 CHOPPER CHROME SET Universal luggage box for all scooters with rear mounting rack. Includes rear reflector, lock, keys and all mounting hardware. Made from durable black graphite plastic. Easy to install.

Dimensions: 23L X 18W X 12H inches.
Universal luggage box for all scooters with rear mounting rack. Includes rear reflector, lock, keys and all mounting hardware. Made from durable graphite plastic. Easy to install.

Dimensions: 17L X 15W X 11H inches.
Main Jet - QMB 50cc (High Performance) Roller Weight 16 X 13 Roller Weights 18 X 14
Our Price: $5.99
Our Price: $7.20
Our Price: $9.95
MAIN JET 105 Roller Weight 16 X 13  (4g) Scooter Roller Weight 18 X 14
Main Jet for the 139QMB 50cc

Available Sizes: #72,  #75,  #78,  #80,  #85
Roller Weight 16 X 13
Comes as set of 6 weights.  
Fits the Honda DIO and 50cc Chinese Scooters.
Sizes: 4g, 4.5g , 5g, 5.5g, 6g, 6.5g, 7g, 7.5g, 8g, 8.5g, 9g, 9.5g, 10g, 10.5g, 11g
Roller Weight 18mm X 14mm
Comes as set of 6 weights.  
Fits the GY6 125 and 150cc Chinese Scooters.
Sizes: 8g, 8.5g, 9g, 9.5g, 10g, 10.5g, 11g, 11.5g, 12g, 12.5g, 13g, 13.5g, 14g, 14.5g, 15g, 15.5g, 16g, 16.5g, 17g, 17.5, 18g
Slider Weights QMB 49-80cc (16X13) Spark Plug - Iridium High Performance Spark Plug (CR8HIX) Spark Plug Cable - NGK Racing (4-stroke)
Our Price: $34.80
Sale Price: $19.95
You Save $14.85
Our Price: $12.95
Our Price: $29.95
SLIDING ROLLER 16 X13 4GR
These slider weight's replace your stock roller weights. They will help improve your take off speed (low end torque) while increasing your mid range torque, as well as your overall top end speed. This is by far the easiest and cheapest modification you can do to your engine to achieve great results.

SLIDING ROLLER 16 X13

Comes as set of 6 weights.  
Fits the Honda DIO and 50cc to 80cc Chinese Scooters.
Sizes: 4g, 4.5g , 5g, 5.5g, 6g, 6.5g, 7g, 7.5g, 8g, 8.5g, 9g, 9.5g, 10g, 10.5g, 11g
Made with Iridium, Stronger then Platinum, Higher melting point.
Requires less voltage to spark, burns more of the fuel in the cylinder, sparks at leaner air/fuel mixtures.
Works on 50-150cc GY6 Scooter Engines.
NGK Racing Cables are designed for the serious racing enthusiast. Low resistant racing cables improve sparking energy leading to improved engine performance. Durable in construction NGK Racing Cables feature high temperature silicone outer jackets, solid copper wire strand core and high temperature resistor covers.

For use on all four stroke engines.
Throttle Cable - 70 inch with 90 degree elbow and strait end. Throttle Controller - Anodized Aluminum Colors VALVE BLUE CAP LED BLUE GY6
Our Price: $19.95
Our Price: $29.95
Our Price: $7.20
GY6 Throttle Cable - 71 inch with 90 degree elbows VALVE BLUE CAP LED BLUE GY6
Used on the carburetors with slide intake that requires a throttle cable with strait end. Works on OKO carburetors and other brands.

Throttle Cable - 70 inch with 90 degree elbow and Strait end.
VALVE BLUE CAP LED BLUE GY6
VALVE RED CAP LED RED GY6 Variator Kit - High Performance Teflon variator kit 139QMB 50cc
Our Price: $7.20
Our Price: $69.95
VALVE RED CAP LED RED GY6 Variator Pulley - High Performance variator pulley 50cc four stroke
VALVE RED CAP LED RED GY6 High performance Teflon variator pulley kit for the 139QMB 50-80cc engine. And the Honda Metropolitan and Ruckus 50cc 4T.

Includes:
Front Pulley
Back Plate
Buffer Slides
3 sets of roller weights 6.5, 7.5g and 8.5g