Two Stroke Tuning

At Durham Motorbikes we have decades of 2 stroke tuning experience…which now days is fast becoming a black art.

From a full engine rebuild through to porting and carb setups we can provide you access to this magical engine type.

So what can we do ?

We tailor the tuning to any specific requirements for the individual rider by using port direction.

Cylinders are measured and the port dimensions calculated.

If the port is over enlarged the engine will quite often be slower and more unreliable than a stock engine.

With calculated port dimension we can start working out the direction of the ports to obtain the power characteristics that are required.

The ports will be polished or honed depending on the requirements. All cylinders will be matched for the maximum flow from the crankcase,

Cylinder Head/s will be measured for the compression ratio, the squish band will be re-cut and a new compression ratio will be set and finally polished.

All pistons will be modified and lightened if needed to relieve any stress.

Crankcases can also be modified for the tuning process to maximise flow and crankcase compression, in turn raising the pumping action.

All two stroke carbs can be modified to maximise flow or enlarge the bore size.

So if you have a 2 stroke bike and need need access to experience and a genuine love for these rare beast then Durham Motorbikes is here waiting for your call.