Note:4500 revs isnt much really dont worry this aint gonna hurt the bike.If you want to start off normally continue what ur doing its just that being a 2-stroke bottom end rev range torque is poor and revsd are needed. A suggestion is in order to take off smoothly take it to about 4000 revs then as you ride the clutch out, add more accelerator to compensate for the revs youve lost. To start off even quicker start with higher revs namely 8 thou then ride the clutch from there.