Hello all, I have a suzuki cs80 roadie and i have a few questions, is there a restrictor plate or something because it accelerates quite hard (for a scooter) and just suddenly stops at 60k's and also why it accalerates faster at 3/4 than full sometimes and also to get it registered since its 83 to 87 what lights indicators does it need? currently no indicators no front light but has rear brake light etc probly won't bother but would like to know

Thanks in advance