I got hold of a used cast dasa topend for use with my 5mm stroker crank, the cylinder is setup correctly for 85mm kawi pistons 5mm crank...I am in the process of putting together with new pistons and noticed the old ones that came with the top-end were trimmed by about 8mm off the bottom of the...
I got hold of a 5mm stroker engine in pieces (minus head).....looking at the port timing of the ported 61x cylinder that came with, it seems pretty aggressive....(measured with stock base gasket, so piston comes ~2mm out of cylinder)
82° Exhaust Port Opens (+/-1)
114.5° Transfer Port Opens...
I have heard about decking off the bottom off the 760 cylinder to lower the exhaust ports, then machining domes to allow for the pistons ....
questions are....
if the sleeves are removed to deck the cylinder bottom are they still ok to be re-installed or are new sleeves required?
and also...
This is a complimation vid I did of our friend and fellow rider Stace Hopper (a New Zealand Freestyle rider) that was tragically killed in a plane crash last friday.
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Im sure this has been covered before but i couldnt find anything on it....
If you use a RRP pole or similar with the 2 breather tubes that go up into the pole......can you fully seal off all the air holes in your hood???
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