I've got a bit of a problem with my V 2011. ABS model. When I blip the throttle little faster either on downshift or when static and with clutch pulled in, there is no response from the motor, no power, just a hiss of some sorts like a valve being released. At first that didn't kill the engine off, but now the bike just shuts off. It's not common, but it's been happening for fair bit of times now. If I release the throttle and apply it again, the power kicks with no problem. That is if the bike hasn't gone dead. It sounds like a vacuum being released, just a brief hiss.
Other than that it behaves normally, starts fine, pulls ok, idle runs fine, fuel consumption is fine... The only thing that I've changed on a bike is aftermarket slip-on instead of original one, but don't think that could be the cause, it was happening even on stock exhaust, just without the shutting off part. With this new slip on, I do get backfire (even a little flame from time to time
) on down throttle, but I guess it's normal because the cat is gone with stock one.
Any ideas would be appreciated very much.
Thanks in advance and cheers!