YD100 Dio reed kit porting measurments

[zer037]

I'd like to Port my YD100 Dio reed kit OKO 21mm carb and MZ65 pipe 36T sprocket.

How many millimeters should I raise the exhaust port on the top?
How many millimeters should I widen the exhaust port on each side?

How many millimeters should I lower the intake port on the bottom?
How many millimeters should I widen the intake port on each side?

I have not assembled it yet.
What is the top speed of the YD100 36T stock, without the Dio reed kit and without the MZ65 pipe, non ported, just stock bare bones kit top speed?
What is the top speed you think I can get with the Dio reed kit, MZ65 pipe, 36T, ported on flat roads?

 

[Venice Motor Bikes]

DO NOT raise any of the ports! (That changes the port timing)!

You can widen (& lower) the ports, but don't go crazy... making the exhaust port too wide can cause the piston rings to snag on the exhaust port roof & break them.

 

[Testname111]

I think top speed will vary from diffrent carb,s

 

[zer037]

DO NOT raise any of the ports! (That changes the port timing)!

You can widen (& lower) the ports, but don't go crazy... making the exhaust port too wide can cause the piston rings to snag on the exhaust port roof & break them.

Have you ported a YD100?

 

[zer037]

I think top speed will vary from diffrent carb,s

My post says I have a OKO 21mm carb.
Do you have the same engine YD100 Dio reed with MZ65 pipe and 36T sprocket?

 

[Testname111]

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