change the exhaust for a dep, arrow, fresco/big one or gianelli full system. get whichever you like. change the yamaha steel reeds to hi-tech carbon fibre ones. get the power valve opened up and get a servo motor fitted. that way you have low down power and top end surge. fit a performance air filter. change the jets for bigger ones and drill some holes in the air box to get more fuel/air in. fit a better spark plug such as splitfire sf406b (same as br9es). get some fruity porting done. change the gearbox sprocket: 1 or 2 teeth extra for higher top speed and slightly less acceleration. 1 or 2 teeth less for better acceleration and lots of wheelies but less top speed. move the reed switch out of the way on the speedo (don´t cut it just move it out).
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