with the aluminium polini a new alloy / cast iron cylinder head was updated (FINALLY!) yes absolutely recommended to get rid of the old 80ies cylinder head. cheap exchange that brings a good power PLUS effect.
- very reasonable price: only 70,- for the end custumer
- FINALLY a proper combustion chamber geometry!
- you can choose the position of the spark plug, or
- you can realize a double spark plug version
(dont put your hopes up2 high that this brings a lot of power
it doesnt. first a lot of other 2stroke factors have to be set right)
the 4 additional screws are optic tuning, they are not needed. Sandpaper (400) the head every time you remount it and use sealing mass, its tight. Only heads with not even surfaces leak.
this is indeed video #900
unbelievable ^^ :)
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DISCLAIMER: the information shown in this video, is about THIS specific hardware. it is my personal observation documented with this video. It DOESNT automatically mean, that all such parts by this producer or seller do have or will have same issues.
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