[gz250_mike]

I just got a used GZ250 from 2003. It doesn't have a windscreen, and It has a little less power then I hoped.

Full Throttle it maxed out at 115kph (71mph) on the highway, with a little ducking, on a slight downhill. On slight hills it struggles to maintain above 95kpm (60mph).

Is this the best it has, or what should I look at tweaking first? Chock looks great, changed the oil.

Thanks!