Using the QS on your Streetfighter V4

TwoWheels · Aug 25, 2020

The QS on the SFV4 has a UP and Down function... how do you use it going down? On my Super Duke I can down shift without closing the throttle completely (just a little closing of the throttle is enough). However it seems my SF does not like this and prefers a closed throttle. How do you use it?? Regards!

WyldCFH · Aug 25, 2020

TwoWheels said:
The QS on the SFV4 has a UP and Down function... how do you use it going down? On my Super Duke I can down shift without closing the throttle completely (just a little closing of the throttle is enough). However it seems my SF does not like this and prefers a closed throttle. How do you use it?? Regards!

It must be a new way of thinking...

MY 18 SD R was the same, didn't matter the throttle position, just click down and go.
My BMW R1250 GS, Pani V4S and SF V4S all need a closed throttle.

BP PanigaleV4S · Aug 25, 2020

The only way you can use the DQS down function is to close the throttle completely then downshift.

On my 1199, which only had an up quickshifter, I would manually blip the throttle to downshift. I remember this feeling much more natural then completely closing the throttle.

You can always disable the down function and manually blip the throttle.

TwoWheels · Aug 25, 2020

Ahh!! Thanks! One issue less to worry about. I rode the SF Sunday and got three issues (one was the QS which felt stuck but I guess I did not close the throttle enough). The other gripe is the switching off of the two rear cylinders at stop / traffic lights. It switches off after a few seconds of idle - not being hot at all - and then does not "wake" up immediately when I pull away... needs a blip (so bloody unlike my SDR...). However what is worrying me is that the SF switched off (like in cut out) twice during the ride... once in mid corner.... I reported this to the dealer and he will have a look during the 1st service hopefully next week. (I wounder if this is related to the side stand switch malfunction some Panigales had...).

WyldCFH · Aug 25, 2020

Cylinder cut happens at a certain temp... only having bars doesn't really help to tell what that temp is though.
I found the easiest way to reactivate the cylinders, release the clutch a few millimetres. When sitting at a red light, you can slightly release and pull the clutch lever to get used to where it reactivates. Since doing this "exercise" over and over I haven't had issue with stalling or lugging at take off.

I've never noticed it happening while moving... could it be you had the clutch pulled for an extended time while rolling? My SF goes in for 1st service this week and we have storms rolling in so I won't be able to test before the service.

TwoWheels · Aug 25, 2020

"... could it be you had the clutch pulled for an extended time while rolling?"

Nope - I was busy riding the twisties....

DucatiKev · Aug 25, 2020

My 1299 and PV4 can slip down a gear with throttle partially open under no load

DucatiKev · Aug 25, 2020

My 1299 and PV4 can slip down a gear with throttle partially open under limited load

BP PanigaleV4S · Aug 25, 2020

DucatiKev said:
My 1299 and PV4 can slip down a gear with throttle partially open under no load

This feels much more natural to me. I feel like I'm at a better wrist/throttle position to smoothly transition back onto the throttle and there's less jerkiness. Maybe I'm just more use to that technique from the 1199.

Using the QS on your Streetfighter V4

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