need more bottom end power on my 91 cr125

i have a 91 cr 125 and i would like to have more bottom end power because i do mostly woods riding, does anyone have any ideas on what to do? i already have a fmf fatty pipe on it, i thought about trying out low tension carb-tech reeds,and maybe mess with the gearing. would gearing do anything, if so what would you recommend.

thanks for responding, do you have a 91 cr 125, or are you refering to your yamaha? i thought the yamaha's did pretty good on the bottom? i was looking at some gearing charts i found on the web and i think i am going to drop down to 11 teeth on the front sprocket first and see what happens. i just realized something though, do most 125's have 18 or 19 inch rear wheels? my cr has a 19 inch rear wheel and if it came from the factory with an 18 inch rear wheel would my gearing have changed because of the wheel being taller? i know that on my car that when i went from a 26 inch tall tire to a 28 inch tall tire it changed my gearing and gave me more top speed, so would this be a similar situation with the bike?

thanks for responding. yeah the hills around here are crazy, sometimes they are a lot of fun but they can be a total pain in the a$$ too. right now my gearing is 13 on the front and 51 on the rear, i was planning on putting an 11 on the front but i dont know what im putiing on the back yet.

i think im gonna go for that eric gore big bore. i looked into big bore kits from other places like rpm and they wanted almost $900 for everything, eric gorr only wants $375, that great! thanks for mentioning the eric gorr big bore because i honestly would have never looked for it, i didnt even know he did that kind of work.