What are the differences between the Hayabusa Gen1 engine and Gen 2 engine?
The Hayabusa Gen 2 engine 1340cc has been around now since 2008 and therefore more readily available. The earlier Gen 1 engines were discontinued at the end of 2007, this means that the engines are now getting quite old and in shorter supply because of its popularity. The Gen 2 has quite a few advantages over the earlier engine; the gearbox was dramatically improved and some of the shortcomings in the original design and the weak output shaft were overcome. The slight increase in engine stroke gives a nice improvement in torque and the engine having a better design of piston and higher compression has allowed the engine to produce the performance in standard form of a reasonably tuned Gen 1 engine and with the added advantage of the increased torque, a nicer all round package. The cam profile are also slightly larger, which helps add to this.