Gen 1 Hayabusa Build: Part 1 – Operation Specs
This is an article I have wanted to write for a long time.

On the forums there is so much talk and speculation as to what a stock Gen 1 Hayabusa has for horsepower and what kind of mods you can do to make it have more. Obviously, there are plenty of modifications that can be made; the sky really is the limit. It has been said, “Horsepower cost money. How fast do you want to go?”

But what internal mods can the average person afford to boost the power without using power adders such as a turbo or NOS? While also trying to preserve the reliability of the engine?

Specs on the bike before the operation

The guinea pig for this experiment is Paul Lee’s 2000 Hayabusa with 11,000 miles on it. Paul had brought …