i just rebuilt my first za50 2 speed, race crank, race clutchs, extra stiff (race version shift dampers ) 70cc Athena AJH, ported, home made dual reeds 19mm Dellorto PHBG, stock gearing, 10w/40w transoil
proma grand prix pipe.
This baby flys, beats all my e50s, 0-30 in seconds, then 2nd gear kicks in all most poping a wheelie as it up shifts, 45mph +, it just keeps pulling and that's up hills, been over taken loads of local youth on there scooters, fucking wicked,
but i need some help with me gearing im not happy with my up shifting it seems to realy have rev out before it changers gear 25-30mph ( a bit to late and not as smooth as i would like) no problom down shifting,
i know you guys run 20/21 front sporkets, what rear sporket would you use, 40/45 mph top speed is more than enough, would much like to use all the power /touge for even more pullaway speed. or shall i just change me oill back to ATF? havent tried it yet.