2 Stroke Porting 63cc 

Love the angle finder as a degree wheel!

thanks idol for your tutorial video,

Hi frank. Could you please tell us how high do you raise the exhaust port? Thanks

I used to tune and modify racing 2 strokes and port matching does make a difference, not very much at maximum power when the engine is devouring air, for example at 9000 rpm the air goes through the ENTIRE ENGINE in 0.0066 of a second, ( 60 seconds divided by 9000 rpm) the port matching helps just before the powerband and with the throttle pickup, when the airflow is less. My engines would go 12000, in this case the air goes through the entire engine in 0.005 of a second. (60 seconds divided by 12000)

How big power engine after full modif racing

Hey Frank, I have one of these engines with a big exhaust on. It runs quite nice and I’ve just bought a reed valve kit, do you have any suggestions on how to port it or do these engines not preform well with a reed conversion??

Hello Sir, Got a similar 63cc Kasei 2 stroke but it is hard to turn and thinking its the compression release problem, where on the engine would I find it to fix it, close to the pull string or close to the exhaust on this 63cc, Thank you in advance

That cylinder looks like a yd100 bicycle engine cylinder. 48mm bore?

What’s the electronic device on the fly wheel mate. Ta

Hi could you tell me where you got that engine stand for the 63cc thank you.

Here in the USA state of Rhode Island mate. Can you please give us a name of this little fellow. I’d love to pick one up here if able. ⚙️🚲⚙️💥

is this a 44mm bore or 50

Type of engine?

What brand motor is this