I have an italjet dragster 125cc and 180cc - the turning circle is worse on the 180cc-is this right.?

I have 2 italjet dragsters (just bought).one is a 125cc the other a 180cc. The 125 has what i would call a normal turning circle for a scooter but the 180 has a poor turning circle.on examination the 125 has a steering yolk that comes straight down from the handlebars then bends in a sort of "s" shape before joining the suspension.the 180 has a virtually straight yolk with no "s" type bend,just a slight curve and it is aprox 2" shorter than the 125 yolk.-it doesnt look damaged or bent by accident..because there is no bend the turning is restricted..is this normal ? are the 125 and 180 dragsters different steering wise ? can anyone tell me if they have experienced anything like this or tell me where i can get detailed pictures of dragster suspension and steering.....still cant bleed the brakes either-even with a one man easy bleed kit.( master cyl changed,rear caliper changed,new dot 4 fluid)..