The motors of all but the razor model 954, with regular oil changes and valve clearance adjustments, are characterized by absolute indestructibility and great durability. It is pointless to perfect these virtues. And if the device is taken to tune, then perhaps to provide more free "breathing". What a sin to hide - the Japanese manufacturers, in order to cater to stringent noise standards, sacrificed several “horses” from the motor “herd”. You can save them from the "meat factory" by installing at least a direct-flow muffler (even better, the entire exhaust system) and a zero-resistance filter (this is also a "tuning" of your wallet, because you can not change the KaEn and wash it every time and re-soak in oil). But in order for the “herd” not to accept the returning “horses” as deserters, it’s better not to be stingy and install a set of needles and nozzles DynoJet on the carburetor version, and PowerCommander on the injection version. Old and new “horses” still need to be friends - with the help of the settings on the dynamometer stand. The cost of this kind of tuning is from $ 500 and up to * No, let's not talk about sad things. And let's talk about the joyful: these costs and troubles usually add 7-10 liters. with. and up to 10% of torque in the entire rev range.
Of all the radical sportbikes, any “razor” has always been and remains the most comfortable device. Captures of 1600 km per day, the pilot suffers absolutely without tension. If you are a convinced trucker, it makes sense to install the "humpback" Double Bubble windshield (they are sold for absolutely all models) and heated handles.
Showa standard suspension features a full range of adjustments. Most Fireblade owners are limited to customizing the weight of the pilot. But if the range of factory settings is insufficient, Wilbers “progressive” springs are often installed and, as a rule, change the oil to a more viscous one.
You can go further: lay out $ 3000–3500 and install a kit - a fork and a rear shock absorber Ohlins or White Power. On a normal road, you cannot realize the full potential of such suspensions, but welcome to track!
