Re: E50 70cc dmp mods

Paul Nickson /
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Right I've just port matched my kit. Trimmed about 5mm off base of cylinder hanging over transfer port.

Opened up the intake and exhaust without altering the ports.

Trimmed 1mm off piston skirt.

And opened up the inlet manifold as far as I could to reduce the 90deg angle

Been for a test run.

It pulled miles better! Booom

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