Hey guys I recently picked up a sweet 84 250r but it feels like it's missing a gear. Pls help is this a 4 speed motor . So I got neutral 1 down and 3 up total of 4 speeds . Is this right. It's pretty fast but I think the sprockets were changed stock is 13/32 but mine is 15/45 tooth now is that a trail set up for faster low end . Pls let me know