Need help for Vance and Hines FuelPak LCD settings
I have been trawling through the forums to see if my issue has already been discussed. It hasn't.
I have a 2014 Yamah Bolt R Spec, equipped with the V&H Twin Slash exhaust, VO2 Air Intake and the FuelPak LCD (this is the legacy version with various mode settings that you can input based on map). I bought the bike used with all that already on. My issue was that there was pronounced decel pop when going off throttle. This is how it acts; I go off throttle, heavy engine braking (assume due to fuel cut-off), reduced engine braking when fuel is restored, burble, pop, burble, burble, pop, pop, burble, POP! You get the idea. I went to the V&H website and downloaded a map appropriate to my model bike and the exhaust. The map was supposed to work fine with stock exhaust (except to run a little rich), and work perfectly with a free flow air intake. That reduced the popping very slightly. So I wrote to V&H and they sent me another map. I added that, and the bike smoothed out a bit (less jerky throttle response, but very slightly) but the pop was still there. I noticed that it is almost gone when I start my bike in the morning if the ambient temp is low. It comes back when the engine is warmed up and the ambient temp rises. I do not suspect any exhaust leaks as the pipes do not seem to get very hot.
My question is whether the engine is still running lean and if this is bad for it. Noob motorcyclist, btw.
Does anyone have an explanation of what the various mode settings on the FuelPak LCD do?
All help will be appreciated. Thanks in advance.