Performance Crank questions

Rabbi · Post by **Rabbi** » Mon Aug 21, 2006 5:50 pm

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

diomike · Post by **diomike** » Mon Aug 21, 2006 6:02 pm

the stok crank is 9mm if i remeber correctly

Rabbi · Post by **Rabbi** » Mon Aug 21, 2006 8:43 pm

from most sources I've asked it is 12mm and the AF18E found in ZX scoots is 14mm

hrnytrtlsgsxr · Post by **hrnytrtlsgsxr** » Mon Aug 21, 2006 11:45 pm

stock crank is fine. don't need to spend the xtra for a racing crank for a daily rider.

Rabbi · Post by **Rabbi** » Tue Aug 22, 2006 4:48 am

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?