23-10-25, 12:06 PM
Regarding the snatchy/ jerky throttle, it's a a "fuel economy" thing that Yamaha put in.
When you roll off, eg entering a bend, the ECU says "Oh, ok, you don't need fuel" and cuts the injectors, so, when you start to roll back on, there's a momentary lag before the cylinders fire again, causing a jerk.
Either you can try to keep the throttle slightly open or there's a bit of circuitry you can get that tricks the ECU into thinking there's still demand on the system to keep the fuel flowing: https://www.600riders.com/threads/trying...ost-653938
Similarly, there's also a "hole" in the power curve around 5-6000 rpm where Yamaha tweaked things to improve emissions. Once you get over 6k, the power comes in nicely. I put in a Power Commander III on my bike to smooth things out, although there are cheaper alternatives to remap the stock fuel settings.
Regarding the suspension, a YSS rear shock (see my earlier post) is much nicer and not too expensive as a replacement.
For the lights, you can install LEDs instead, but I find Osram Night Breakers work well enough.
When you roll off, eg entering a bend, the ECU says "Oh, ok, you don't need fuel" and cuts the injectors, so, when you start to roll back on, there's a momentary lag before the cylinders fire again, causing a jerk.
Either you can try to keep the throttle slightly open or there's a bit of circuitry you can get that tricks the ECU into thinking there's still demand on the system to keep the fuel flowing: https://www.600riders.com/threads/trying...ost-653938
Similarly, there's also a "hole" in the power curve around 5-6000 rpm where Yamaha tweaked things to improve emissions. Once you get over 6k, the power comes in nicely. I put in a Power Commander III on my bike to smooth things out, although there are cheaper alternatives to remap the stock fuel settings.
Regarding the suspension, a YSS rear shock (see my earlier post) is much nicer and not too expensive as a replacement.
For the lights, you can install LEDs instead, but I find Osram Night Breakers work well enough.