I have a completely stock 90 which is in excellent mechanical condition, but i am not too thrilled with the power characteristics, especially down low.
The suspension etc., are all set for my weight/ riding style, the sprockets are 15/50, stock size tire, the bike is jetted properly. This bike has plenty of power everywhere, pulls front up in all five gears at will. All the maintenance [sp?] stuff, bearings etc., has been done, so I don't have need to worry about all that.
The bike is very hard to manage down low/ off idle, very little throttle movement makes for big wheelies, this bike is almost violent off the bottom. I would like to soften, or prefferably just smooth out the bottom end without loosing any mid/ top. I have been running 92pump at 40/1 with belray mc-1, i will be switching to race gas in the spring.
The parts i have been considering so far have been; desert pipe fmf/pc,
fmf/boy reed valve, and or thicker head gasket. My problem is that being a law student, i have very little money to spend on important things like my kx, and need to get it right the 1st time. I can afford $450 or less.
My question is which of the above, or any other suggestions, or combination, are most likely to change the power curve the way i want.
Thanks for your advice.