MK sp kit port timing

[darookie]

Does anyone know the port durations for the Metrakit SP scooter cyl kit "mina", I have a Pro-race MK and it is 194 ex 130 intake , I wondered how much difference it was between them?

 

[tiba_karotsu]

if i remember correctly it's between 185 to 188 for the exhaust port & 118 for the transfer & boost ports, i have a MK SP kit here i ported to race specs, i got the stock timings first before i raised it up a bit.

 

[DRXRACING]

Somewhere on this forum (English Speaking) I asked a similar question and posted my findings on the SP cylinder.** I'm thinking 180 114. I'll look for it and bump it up if I find it.