Key Product Features 

  New Arrival!

Gasoline motor: YD100-100CC(Real Displacement is 79cc/80CC)
Engine Type: Single cylinder, air-cooled,2-stroke
Mixing Ratio of Fuel(90#) and Engine Oil: 16: 1 for New sets, 20: 1 after Running 500Km
Power: 2.0KW
Bore and Stroke: 50mm x 40mm
Cylinder inner diameter: 50mm
Piston outside diameter: 50mm
Maximum speed:45-50km/h
8mm front and rear mount studs
Cylinder Head and Cylinder Two In One, better design for cooling, higher power with hill driving easily.

Product Key information: 

2 Stroke Gas Bicycle Engine,YD100-50mm 79CC/80CC Engine;

Bore and Stroke: 50mm x 40mm;

Better adjusting clutch a little before riding

 

• 2 Stroke YD100 Gas Engine ONLY, NO manual,YD100-50mm 79CC/80CC Engine; Bore and Stroke: 50mm x 40mm; no sticker on motor; Better adjusting clutch a little before riding
• Excluding manual; Cylinder head and Cylinder two in one piece; 50mm bore; Improved magneto as well
• Cylinder inner diameter 50mm; Piston outside diameter 50mm; 8mm front and rear mount studs; 40mm alum intake stud spacing

1. For new motor run-in period is 300km at least.

2. During run-in period, it is prohibited to accelerate throttle handle too fast, you can grip the handle slowly (step by step), or the motor will be locked up.

3. Mixing ratio of fuel and engine oil: 16:1 for new sets, 20:1 after running 500km.

 

2 Stroke Gas Bicycle Motor Only YD100-79CC/80CC Engine Kit; Bore and Stroke: 50mm x 40mm

Cylinder head and Cylinder Two in one; Engine Type: Single cylinder, air-cooled,2-stroke		Clear up the cylinder transfer ports before assembling maybe some rough slag inside which maybe break off and cause the jamming of pistons and cylinders; fully attention on screwing cylinder to the end bottom,DO NOT screw M8 bolts tightly that maybe cause drill through the end bottom so add some gasket or washer on head is better way to prevent it happen; Attention on piston ring if put the piston out of cylinder, the piston rings are weak, better with right way install piston kit to cylinder

Product Description of dio reed valve and block:

   · Inner Dia of Intake:1.26inch

   · dio reed valve kit and block for motorized bicycles;

   · higher performance fully 100% cnc machine processing the block;

   · works with 48cc/66cc/80cc engine kit;

Advantage: stronger power,better performance of air-cooling etc

Comment:
1): 2pcs gaskets for reed valve and 1pc gasket which works between the block and reed valve are included in package;

2):if buyers buy the cylinder to match the dio reed valve kit,buyers need find 40mm intake gasket and glue the gasket by themselves which works better between the block and cylinder in order to seal it ;

3): 4pcs bolts fastening the block and reed valve kit are included too;

Sizes:1.26" inner diameter of intake which connecting carburetor;Wildth:2.52"; Length:5.31";(more sizes in pitures)

CNC Dio Reed Valve Block ONLY (butterfly type) - 2 Stroke 66cc/80cc/YD100 Motor Bicycle

• For Dio reed valve block for PK80 & YD100 motor kit
• Block made by CNC machine 100%;
• Compatible with dio reed valve kit;
• Need the Allen Bolt: M6x18mm or M6x20mm
• Please kindly note: if you want to use it on LD100 motor/110 motor, you can cut cylinder as the last pictures shows.

butterfly pattern

For Dio reed valve block for PK80 & YD100 motor kit

Need the Allen Bolt: M6x18mm or M6x20mm

Thank you so much for views, 

We truly care much more your purchasing experience,We are 100% dedicated to your complete satisfaction.

                                                                         if you have any questions,please freely to ask and I will do my best to get back to you promptly!

Products usually shipped on the second business day and you will receive message of tracking id.

NTNMOTORCYCLE is registered officially in year 2012 and started business in year 2008, we can provide engine kits, high performance spare parts of engine, motorized bicycle and spare parts of bike. 

hope you can have a great time when shopping with us.