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Z2 Block

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jonhunt
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Z2 Block

#1 PostAuthor: jonhunt » Mon Jun 09, 2008 4:43 pm

I have a Z2 engine, at least the casings are Z2 marked. However the capacity mark on the block is 903. Anyone know if Z2s had a specific 750 mark or did they use the same casing & just machine it differently?
Jon
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z2.john
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#2 PostAuthor: z2.john » Mon Jun 09, 2008 8:46 pm

Hi Jon,
The Z2 has 746cc cast on the block
Cheers
John
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Iain marshall
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#3 PostAuthor: Iain marshall » Mon Jun 09, 2008 9:41 pm

sounds like someone has built a 900 in to the 750 crankcases,750 crank has a shorter stroke 58mm the 900 66mm,so just fitting the barrels of the bigger engine wouldnt work
Got the Rex, just the Kat to get now...
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jonhunt
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Z2 Block

#4 PostAuthor: jonhunt » Tue Jun 10, 2008 9:24 am

Thanks. Looks like I have the bits to replace the broken fin parts on my bike. :lol:
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Garn 1
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#5 PostAuthor: Garn 1 » Wed Jun 11, 2008 12:10 am

Jon, it coulds have had a Z1-900 crank-shaft fitted. Which would make it work, your Z2 motor work as a 900cc.
RegardZ
Garn (Sydney) Z1, Z1A, Z1B and Z900-A4
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