x2 ^^ what he said! -HA! + new spark plugs.
Now seriously. If I had a stock bike and 1500 dollars and want to do trails.
-tors removal kit
-park brake mod.
-used set of Pro Circuits or Toomey T-6´s or Paul Turner mids
-shave your stock head 0.025
-K&N air filter with adapter in your stock box without the lid
-advance your timing +4 or +5
-port your stock reed cages
-carbon tech low tension reeds
...
-handle bars if you feel so
-nerf bars
...
- +2+1 A-arms
-used set of good front shocks
...
- 13/41 or 14/43 gearing with new chain
...
-GOOD JETTING
...
Port it if you have the extra money!
-Pasi S.
BTW. What are your current carb adjustments? pilot, air screw, needle, main?