What the heck is up with all the complaints on the factory fueling/mapping? Why is a re-flash needed?

Sierra1

Well-Known Member
Joined
Nov 7, 2016
Messages
14,819
Location
Joshua TX
Hmmmm....bucking bronco....never thought about that. I've been thinking that it's all in the wrist. Maybe there's some body English in there too. Because, when I throw out the anchor....and then get back on the gas....I don't remember any bucking; but it would make sense that there could be. I may be unconsciously changing my posture, since I know what is about to happen; I do have to change my riding style with my wife on board, because she will slide into me if I shut the throttle too quick, because she is not expecting it. Whatever the reason I'm not changing anything with the bike.
 

Don T

Well-Known Member
Joined
Mar 11, 2011
Messages
541
Location
Denmark
I also think it all comes down to personal references.
My stock 2015 with 100.000 on the clock runs better than ever.
I have never had any issues with throttle response (I like the option of 2 ride modes and use both depending on temper and conditions) and love the heavy engine breaking - so I've never considered a flash.
 

pkelly20

Member
Joined
Aug 29, 2017
Messages
49
Location
Canada
My previous bike was a 2004 GSXR1000, now I have a 2017 ES. It’s throttle is not twitchy in either mode by comparison. Sometimes I ride in T mode, sometimes in S. Depends on what kind of riding I want to do.

My bike was prone to stalling when it was newer, but now at 6,000 km it doesn’t do it anymore. Could be that I synced the throttle bodies, or maybe it is loosening up with more mileage, a bit of both?

It does buck a bit in 1st and 2nd with little or no throttle, that’s when I use the clutch a bit and raise the rpm. A slightly higher idle may be the answer to that low speed lunging, who knows. If I could adjust idle speed myself to check I would. Why isn’t there an idle speed adjustment on these bikes?

My GSXR was FI and it had an idle adjustment knob.


Sent from my iPhone using Tapatalk
 

Clawdog60

Well-Known Member
Joined
Nov 14, 2018
Messages
560
Location
east central "ILL"
Flash or no flash might as well be another oil thread. I, speaking for myself only, still must kind of suck at riding after 30 years and multiple motorcycles. I must suck the most at FI bikes because I've ridden a 2017 FZ-09, a 2016 Ducati Diavel, a 2017 BMW S1000XR, a 2019 Honda GoldWing, a 2018 BMW K1600GT, a 2004 VStrom 1000, a 2016 Vstrom 1000 and none, not one of these bikes threw an achor in the pavement like my 2017 Tenere in Sport mode, when you let off the throttle. (K1600GT and Goldwing were long demo rides. Others were friends bikes that i had at least an hour in the saddle) None of these bikes rocked like a bucking Bronco when going over bumps in any of their modes at any low speed. I, again, speaking for myself, can and will modulate a clutch lever when necessary, not constantly. Again, I have no riding or clutch skills and I took the easy way out of riding a great stock motorcycle and made it better, for me, by flashing. Again, i will offer anyone in the area that would like to try a Flashed Tenere, while I ride your Tenere. Nothing to lose or everything to gain?

I just came back from vacations 1 year apart, and rode the same roads. Skyline Drive and Blue Ridge Parkway. Last year, no flash, tour mode only because didn't flash yet. 1 year later, same roads, flash, sport mode and ............what you think?

Oh and I run overpriced Yamalube 15w-50 full synthetic with Ester. Because it works better, for me. What is Ester anyway? Ooooooo, new thread? Hahaha.

Enjoy the ride everyone.
Where do you live? I will take you up on that offer if you’re close enough
 

RCinNC

Well-Known Member
Joined
Aug 30, 2014
Messages
2,816
Location
North Carolina
Just having a reflash doesn't violate your warranty. If you take your bike in while it's under warranty because the front rim cracked, they can't deny the warranty claim simply because you had a reflash of the ECU. Merely installing an aftermarket part on a bike won't violate a warranty. However, if you have some sort of malfunction that the dealership can claim was the result of the presence of an aftermarket part, then they can deny that particular claim, and you might have to fight with Yamaha USA over it.

The Moss-Magnusson Act gives the owner of a product with a warranty a lot of latitude as far as how he maintains the product. The manufacturer can't force you to go to a specific dealer for maintenance, or force you to adhere to a maintenance schedule in order to maintain warranty coverage. The manufacturer can try to deny warranty claims based on non-maintenance (if the non-maintenance directly contributed to the failure).

Of course, all this stuff only applies if the manufacturer offers a warranty, which they aren't required to do.
 

Clawdog60

Well-Known Member
Joined
Nov 14, 2018
Messages
560
Location
east central "ILL"
But if there is a drive train or component failure claims can be denied if they say alterations caused said problem. Sounds like thin ice I’m not willing to test.
 

RCinNC

Well-Known Member
Joined
Aug 30, 2014
Messages
2,816
Location
North Carolina
Honestly Clawdog, a warranty is only as good as the dealership you take it to, as far as warranty claim denial. Dealerships don't make any money on warranty claims, so it's going to come down to the integrity of your particular dealership whether or not they make an honest evaluation of the source of warranty claim, or just say "hurr durr, you have a reflashed ECU, claim denied". If they are a shifty dealership, then they're just as likely to find some other excuse to deny a warranty claim, even if you don't have a reflash. If nothing else, they'll just fall back on "operator misuse"; i.e, "this would never have happened if you rode the bike normally, so you must have been abusing it".

I don't dispute your reasoning, Clawdog. I've never been inclined to get a reflash, and I probably wouldn't while the bike was under warranty. Not because it would "void" the warranty, but because if a dealership claimed that a failure was the result of the reflash, then I'd have to be willing to go all the way to fight them. That might come down to digging up my own experts to counter their mechanics, which could certainly get pricey fairly quick. I just think it's always important to point out when this topic comes up that installing an aftermarket part doesn't "void" a warranty, along the lines that you can never make a warranty claim again because you had a reflash.
 

jbrown

Active Member
Joined
Sep 25, 2012
Messages
373
Location
Novato, CA
A reflash can destroy your engine if it's done wrong. If you reflashed, then a piston melted, you'd likely have trouble if they knew it was reflashed.
 

RCinNC

Well-Known Member
Joined
Aug 30, 2014
Messages
2,816
Location
North Carolina
I'm not saying it couldn't happen (I have no idea), but I've never heard of anyone who'd had their ECU reflashed that experienced a destroyed engine. Has anyone in here experienced a total engine failure from a modified map on an ECU, or seen it happen to someone else?
 

Checkswrecks

Ungenear to broked stuff
Staff member
Global Moderator
2011 Site Supporter
Joined
Mar 7, 2011
Messages
11,489
Location
Damascus, MD
A reflash can destroy your engine if it's done wrong. If you reflashed, then a piston melted, you'd likely have trouble if they knew it was reflashed.
Technically possible but the flashes done to these bikes doesn't change mixture, they alter the throttle body response maps.
 

jbrown

Active Member
Joined
Sep 25, 2012
Messages
373
Location
Novato, CA
While I have only changed the throttle mapping, the Flash-Tune software allows changing the fuel mapping. I know Anthony started out making throttle map changes, but last time I had an email exchange with him, he was experimenting with fueling changes. Ignition timing can also be adjusted. If a special flash is supposed to deal with an exhaust system change, then it likely does alter fueling. It would be very easy to wreck your bike with some misplaced numbers. If I were Yamaha, and an engine failed in a way that could be attributed to an ECU change, and the bike had been reflashed, I would leave it to the owner to convince me the particular reflash didn't cause the failure.
 
Top