Removing
Remove all the dead weight,,,centerstand and shave some of your rear fender (acting as a drag chute on a funny car), you will lose some serious weight by going to a lighter single exhaust, geting rid of the airbox and going with individual air filters, and get a taller windscreen, the stock one is shorter than a racing one. Get better tires, Metzler, Dunlop there are several great 16" tires now,,,,don't forget to check out Conti...they have a new camapagn going...perhaps mischelin...anything you can to to become more aerodynamic,,,no loose clothes flopping in the breeze, carb rejetting, even changing out the rear sprocket about 3 teeth ...it will equire a longer chain, but it's worth it for bottom end power. Look for anything protruding from the sides or under yoru bike that will mess up/disturb airflow...if you can get by with a couple rubber spacers to push the sides of yor fairing out a bit it will further keep you in the airpocket and out of the flow. Increase yor cold tire pressure byabout 3 pounds and use chalk across the tire to see if you are using the entire tire or not...to much pressure you won't be and to little and you will be scuffing and sliding, that too should be obvious by looking at the chalk mark that it isn't chewed up to the complete edge of the tire ..if it is just right you will have even chalk marks across the tire...be careful and warm them up first. Frame sliders or even handlebar sliders are cheap, although frame sliders are a litle difficult to intsall on a 250R/500R. If you are pretty serious g to a boat/reupholster shop and have them make you a sadddle out of closed cell foam whre it fits you in your length of the seat when you are "IN" position. It may even be lower but that is okay too. You can get the Service manual and adjust he front forks with different weights and amounts of oil, even change the springs in them if you want...but change the seals if you do. Seal any gaps that you may have on the front fairing, that allow the airflow to be disrupted, The usual stuff like lube the chain, frame, wax the bike, use a thinner 100% synthetic oil and change your filter often (whe the oil starts to turn almost dark-dark brown, but before black), and try different brands of gas. Even the same octane will act different in your bike...and get the gas early in the morning, while the ground at depth is still cool. Keep great records of EVERTHING you do. when time day and mileage, even the gas and any weather info that you can keep...see weatherbug...