You can choose from silenced or non-silenced pipe, if you do not specify, we will send the silenced one as it is shown on the pic.

With Wj71 cab. + Pipe

The listing is for 1 pc of engine + 1 pc pipe


SCZ Racing 70CC-Most powerful 2 stroke engine for BAJA
Cylinder 47.6mm
Stroke 39.2mm
Displacement 69.75cc
Compression ratio  1:14
Heat-dissipating method: Natural air cooling.
Power parameter: Since we haven't tested it yet, we will complete the test as soon as the new horsepower machine is in place and we will release the detailed power parameters. The test estimate is 12HP+, which is a conservative estimate of the testers and the actual horsepower should be higher.  
Engine matching color: Silver/Titanium/Blue/Red/Green
 The design of mid-cylinder large flow scavenging port and exhaust port, using ceramic coating, features strong lubricity, excellent heat dissipation performance, long service life!  
The blank of crankshaft connecting rod is forged and processed by 5-axis CNC.
Lightweight piston, single ring design to reduce piston and cylinder resistance to achieve a higher number of revolutions, piston and connecting rod needle roller bearings using Germany high performance needle roller bearings.  

Crankshaft bearing adopts Japanese NSK high turn silent bearing and high temperature resistant oil seal.

 Crankshaft box, radiator cylinder head, hand pull shell and one-way valve are processed by 5-axis CNC.
Customized high performance ignition system with 64mm diameter magnetoelectric ball.
Clutch diameter 75mm equipped with 2 different hardness clutch spring respectively red 4500RMP black 6000RMP you can match according to different tooth ratio use clutch cup inner diameter 80mm.
Gear material 45 steel +H 17T small tooth (need to match the original 57T) Furious mode 24T 50T high speed tooth ratio suitable for high speed cruise later we will produce more different tooth ratio for buyers to choose.
The design of one-way valve 4 inlet adopts 0.2mm high performance manganese steel reed

Carburetor configuration warborough WJ-71 or you can choose not to carburetor version will be cheaper.
The exhaust pipe is made of 304 stainless steel with a wall thickness of 1.2 to 1.5mm.
Unsilenced or silence version available

Shipping: 

 

If the ePacket is available to your country, we will ship by ePacket to make sure you can receive the order at the soonest. For other order, we will ship by China Post or China Parcel. If you have any special requirement about shipment, please send message to us. 

 

Feedback:

 

If you have met any problem with your order, please do not leave us negative feedback at first, but contact us. Please be assured that we will do the best to help you resolve any problem. 

 

If you are satisfied with your order, please leave us five stars positive feedback. 

 

Products:

 

In addition, we have 99% of Baja parts in stock, if you did not find out the parts that you want on our website, please do not hesitate to contact us and we will have a check for you.