I have a 400EX with a Yoshi slip on, K&N filter and jet. I do alot of woods riding and my one friend told me to go with a 14 th sprocket, will this make a differnece and how much top end will I lose???

2000 400EX Yoshi slip on,k&nfilter,jet,shockwears

 

Can anyone give me some info.!!!!!!!!!!!!!!!

 

A 14 tooth front on your 400ex will help a lot in tight woods. It will have a noticable effect on top speed but an equally noticable improvement on acceleration. Maybe sacrifice 5mph on top? I am not sure exactly.