Why don't you just buy the pictured one? I have no idea of the internals and so I couldn't duplicate it.
If you don't want an expansion chamber then...
If you have been lurking here very much then you know most riders experience is that the cops don't care unless you are being dangerous. I would ride...
yeah but this "flying bicycle" hasn't much weight to lift since the "rider" was just a plastic dummy. I highly doubt it can be made to lift a 150 lb...
Below is plans specifically for a 69cc Grubee engine with its exhaust port raised 1.2mm (to 28.1mm from cylinder top) for an exhaust duration of 150...
Motovelo P.O.S. + P&P, Exp. Chamber, Jaguar CDI, Delorto Carb, Shift Kit, and a ton of hours.
Location:
South Bay Area, CA
Interests:
Cars, Bikes, Guitar, and The Great Outdoors
Occupation:
Auto Technician
Signature
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MTB+66cc+Too many modifications to list=FUN!!
^^R.I.P. Above Motor^^ Does anyone ship motors to CA? PM me please!