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Old 04-19-2013, 04:33 PM
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fiery
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Default RE: Numbers for ST G21/35 DDD head
My Russian G20/29 copy, the KOMETA MD5 (5 ccm).

It runs, but leaks combustion gasses badly from blow-by past it's loose (I suspect out-of-round) contra-piston.

I will arrange for one of the talented gents here in Australia to make a new contra-piston for it.

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