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Will flashing my ECU have any affect on my warranty, service and maintenance at the dealer?
My FJ09 has > 800 KM so I think I have a service coming soon.
2017 FJ-09 - Yoshimura Y-series Exhaust / MRA Sport Screen / Evotech Rad Guard & Fork Sliders / Custom LED Rear Tail Light / Lowering Links / Mirror Extenders / Low Seat / Tail Tidy / Shogun Swingarm Sliders - Touring mods > Madstad 20" screen (on standby) / SHAD SH36 Hard Cases / SW-Motech Rear Alu-rack - Mods not yet installed > Fender Extender - Mods on the way > MT09 Adventure Pegs / Sargent seats / Knuckle Guard leds / Speedtech Photon Flush Mount LED signals / SW Motech Frame Sliders
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The fueling at low rpm is never steady. It's lumpy as heck. Up down up down up down up down. And the on/off throttle is still a bit jerky.
 
I thought flashing smoothed things out and improved things in a lot of ways regardless of year? Aren't there other improvements to flashing my bike even if it is a 2017?
 
If there are warranty issues for flashing....What if I used a Power Commander V instead ?
If I needed warranty service, can I just remove the Power Commander V when I take it to the dealer?
2017 FJ-09 - Yoshimura Y-series Exhaust / MRA Sport Screen / Evotech Rad Guard & Fork Sliders / Custom LED Rear Tail Light / Lowering Links / Mirror Extenders / Low Seat / Tail Tidy / Shogun Swingarm Sliders - Touring mods > Madstad 20" screen (on standby) / SHAD SH36 Hard Cases / SW-Motech Rear Alu-rack - Mods not yet installed > Fender Extender - Mods on the way > MT09 Adventure Pegs / Sargent seats / Knuckle Guard leds / Speedtech Photon Flush Mount LED signals / SW Motech Frame Sliders
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Not a bumpy road. It's something that happens on completely flat roads.
 
Won't a flash allow adding quick shifting? Remove speed limiter?
 
So not many people get their 2017's flashed unless they do a modification like exhaust? Maybe I should ask in another post about people flashing their 2017's.
2017 FJ-09 - Yoshimura Y-series Exhaust / MRA Sport Screen / Evotech Rad Guard & Fork Sliders / Custom LED Rear Tail Light / Lowering Links / Mirror Extenders / Low Seat / Tail Tidy / Shogun Swingarm Sliders - Touring mods > Madstad 20" screen (on standby) / SHAD SH36 Hard Cases / SW-Motech Rear Alu-rack - Mods not yet installed > Fender Extender - Mods on the way > MT09 Adventure Pegs / Sargent seats / Knuckle Guard leds / Speedtech Photon Flush Mount LED signals / SW Motech Frame Sliders
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PC V includes what called an O2 optimizer, which tricks the ecm into staying in open loop, smoothing out the part throttle “jerkiness” some people experience.
 
Kev’s add-on will do the same thing.
 
Have you checked your chain tension? These are also classic symptoms of a bad tight spot in a drive chain.
 
How many miles on your bike?
 
“They” can’t deny warranty coverage unless they can PROVE the ecm flash caused a failure. I wouldn’t sweat it. It’s a Yamaha after all and they rarely break.
 
-Skip
I agree with @skipperT the chain slack can help. I also found that taking all (or most) free play out of the throttle cable helped..
 
After my ECU flash I stopped thinking about it.

'15 FJ-09 w/ lots of extras...

Fayetteville, GA, USA

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Good ideas. I will look into Kev's add-on. I can ask about the lumpy throttle and see what they say. It's not the chain and I have adjusted the throttle cables. I will pay attention to when exactly it happens. It could be a vacuum leak for all I know.
 
Installing a Yoshimura Exhaust so I will wait until that is on and go from there in terms of flashing. I may try a locally available PCV in the meantime.
2017 FJ-09 - Yoshimura Y-series Exhaust / MRA Sport Screen / Evotech Rad Guard & Fork Sliders / Custom LED Rear Tail Light / Lowering Links / Mirror Extenders / Low Seat / Tail Tidy / Shogun Swingarm Sliders - Touring mods > Madstad 20" screen (on standby) / SHAD SH36 Hard Cases / SW-Motech Rear Alu-rack - Mods not yet installed > Fender Extender - Mods on the way > MT09 Adventure Pegs / Sargent seats / Knuckle Guard leds / Speedtech Photon Flush Mount LED signals / SW Motech Frame Sliders
since your going back to the dealership, have em help you set the APS, dropping the value from "17"( this seems to be the norm) to "13-11" depending on personal preference...
 
its an electronic throttle... super on point compared to the reg ole cable systems...
 
lumpy throttle- this motor loves to spin rpms... cruising around in 6th gear at 30mph is a very low rpm compared to my preference of 2nd gear at 30mph which( 1st gear is mainly ignored by me unless im at the drag strip)...
2012 wr250f - C-class 30+ age group
2015 fz-07- Hordpower Edition-80whp
2015 fj-09- Graves Exhaust w/Woolich tune by 2WDW @120whp
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lumpy throttle- this motor loves to spin rpms... cruising around in 6th gear at 30mph is a very low rpm compared to my preference of 2nd gear at 30mph which( 1st gear is mainly ignored by me unless im at the drag strip)...
^absolutely^ keep the rpms up and this motor feels absolutely "alive".  I like to keep it above 4k during normal around town riding, and above 7k when in the "fun zone".  I have frequently caught myself ripping through some back roads at 80mph and realize I'm still in 3rd gear...
 

***2015 Candy Red FJ-09***

I have a 2017 and had ECU flashed. Still surges at super low speed (5-10mph) putzing around a parking lot or something.
 
Not sure what it's all about. It is a little annoying I guess but I think I adapted by using the clutch to smooth it out because I only notice it when I'm using one hand.
 
I have a 2017 and had ECU flashed. Still surges at super low speed (5-10mph) putzing around a parking lot or something. 
Not sure what it's all about. It is a little annoying I guess but I think I adapted by using the clutch to smooth it out because I only notice it when I'm using one hand.

Under such circs I'd be in B mode...

Riding a fully-farkled 2019 MT-09 Tracer 900 GT from my bayside home in South East Queensland, Australia.   

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