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Performance Crank questions

Posted: Mon Aug 21, 2006 5:50 pm
by Rabbi
I'm about to rebuild my AF18E motor, as mentioned in other threads...

I have decided I will either get the Polini Corsa or Polini Contessa 72cc boreup kit

My question is, is really necessary to get a performance crank or can I get away with the stock Honda crank (12mm diameter)?

The scoot will be a daily rider, and wont be used to race... but i want it to haul *. It's a 1980 Nifty Fifty with AF18E engine swap (similar to Spree, but with round headlight and no kickstart)

If you think I should go with an aftermarket crank, which one is the most popular?

If you think I should stick with the stock crank, is there anything else I should replace? Bearings etc?

Cheers

Posted: Mon Aug 21, 2006 6:02 pm
by diomike
the stok crank is 9mm if i remeber correctly

Posted: Mon Aug 21, 2006 8:43 pm
by Rabbi
from most sources I've asked it is 12mm and the AF18E found in ZX scoots is 14mm

Posted: Mon Aug 21, 2006 11:45 pm
by hrnytrtlsgsxr
stock crank is fine. don't need to spend the xtra for a racing crank for a daily rider.

Posted: Tue Aug 22, 2006 4:48 am
by Rabbi
sweet thats good news.

is there anything i should replace while i have the engine in pieces for the boreup install?

like the bearings, seals, or whatever else might be living down there?