Barrel Port Heights

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Dimitrios_231
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Joined: Mon Jan 12, 2009 4:06 pm
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Few weeks ago,out of curiosity I opened my Rapido 250 engine to measure the port timining.
When s**t happens,it just happens,
I lost the paper that I had written the measurements.

Has anyone ever measured the heights of the ports on a standard Rapido 250 classic barrel?

We can make a list of all the barrels available,
so it will be easier for future tuning.

Measurements taken from top of the barrel.

Rapido 225 classic
barrel height 101.6mm
Exhaust 58.82 - 36.70
Transfer 58.75 - 46.57
Inlet 95.08 - 72.37

MM 200cc Cylinder
barrel height 101.6
Exhaust 59.12mm - 40.36mm
Transfer 59.43 - 47.89
Inlet 95.07 - 76.17

Li 150 Cylinder
barrel height 101.6mm
Exhaust 58.99 -41.83
Transfer 59.37 - 47.78
Inlet 92.55 -74.19

Expect a small error in the measurements ;)
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