250r sprockets

[mrman550]

i have a 84 250r that runs turbo blue racing fuel the moter is ported polished head is shaved wiseco high compesion piston bored to the max. the gearing needs changed but i dont know how far it needs to go faster.
thanks

[atczack]

Get a bigger countershaft sprocket or a smaller rear sprocket, that would get you more top end.

[Red Rider]

Mrman, I don't know what your current gearing/tire combination is, nor do I know what the stock gearing for an 84 250R is, but generally increasing 1 tooth on the countershaft sprocket is approximately the same as decreasing 3 teeth on the rear sprocket. Most people prefer to change the countershaft sprocket because they are cheaper (the sprockets, not the people).

[Apollo]

A bigger counter shaft sprocket like a 14 over a 13 is easier on your chain also.

[mrman550]

how many more teeth on the front sprocket 1 or 2 more? the tires are 22-10-8 i think when i wind out 5th gear i really seems like it needs more speed

[a-camp]

One tooth makes a big differance on the front

[KASEY]

by the way,,, there is no such thing as a high compression piston for a 84 250r,,, :D :D :D