Anyone still holding their breath for the re-flash?

[RTX]

In your situation If your not having major issues with hot or cold start i wouldn't bother with a factory reflash.

My understanding was cat was handling all the fuel control programming. Yamaha was hands off.
Thats why it was a mess to begin with. Its all cats programming.
Who really knows though, with all the issues maybe yamaha stepped up and helped out, like a real life partnership.
I doubt it though because in my opinion yamaha has been very slow in the past to admit or address issues. Just the fact it is being addressed leads me to believe cat is doing it

 

[Studroes144]

I've had starting issues since I had like 15 miles on mine. Hot start, cold start..doesn't matter at all the temp, if I let the fuel pump cycle it cranks over 6-7 times before it starts. If I start it right away without cycling the pump it fires right up..doesn't matter if it's -10 degrees, I never let it cycle anymore.

 

[RTX]

Thats funny because mine is the exact opposite.
I need to turn on the key and wait for a full cycle of the gauge then start.
Its really strange how the same issue has so many different solutions.
Makes me wonder if this reflash will be a band aide vs a fix .

If you have a good dealer that knows the turbo stuff id ask him his advise on the reflash after he has done a few.
Maybe even call ulmer and talk to him once the reflash is released. At least you know he will shoot straight with you.

 

[Studroes144]

Ya I'm gonna wait for the dealer on this one, they'll eventually have a reflash themselves and once that comes out they'll be able to tune it for the turbo and add some other things along with it, unless yamaha confirms this is a turbo safe tune then I'm out, I don't think they'd ever say that tho.

 

[stingray719]

I've had starting issues since I had like 15 miles on mine. Hot start, cold start..doesn't matter at all the temp, if I let the fuel pump cycle it cranks over 6-7 times before it starts. If I start it right away without cycling the pump it fires right up..doesn't matter if it's -10 degrees, I never let it cycle anymore.

Yours is the only one I see this way. I suspect something broken in your ECU. If this was bad programming all would have the same issue or almost all. And almost all have had a hot start issue on occasion but are you positive the hot start issue is not the heat in the air box? Several of us have eliminated our hot start problem by dealing with this heat. I suspect any reflash will band aid the excess under hood heat on startup.

 

[Studroes144]

I don't know if the issue is heat with the hot starts..never looked into it since mine is an all time hard starting issue..one thing I've done recently tho with the turbo, if I let it cycle and start it it'll crank a bit before it starts, if I let it cycle then open throttle all the way then back off and then start it it fires right up. This is when the engine is cold, or atleast air temp (70 degrees)

 

[Studroes144]

This may or may not be ecu related but my sled along with 1 viper and 1 7000 all got dynoed on the same dyno, my sled made like 4-5 more hp than the other two..the others do not have any starting issue at all

 

[RTX]

Yours is the only one I see this way. I suspect something broken in your ECU. If this was bad programming all would have the same issue or almost all. And almost all have had a hot start issue on occasion but are you positive the hot start issue is not the heat in the air box? Several of us have eliminated our hot start problem by dealing with this heat. I suspect any reflash will band aid the excess under hood heat on startup.

Nope its not the only one.
Ive talked to 2 guys on the trails that had the hot start and dealt with it the way he is dealing with it.

I even spoke with a guy that claims his will not start hot without giving it light throttle.

None of the people i spoke with are members on here. I specifically asked where they got info from (dealers) and if they were members.

 

[GTPower]

With this ECU re-flash coming from Yamaha as a recall or silent recall or whatever next month or in November, do you guys think it'll affect any performance part that is added based on the current ECU setting? For example; intake, exhaust, clutch kit, PCV?

As someone mentioned prior, it seems ALL '14 and '15 models are affected.

 

[Studroes144]

With this ECU re-flash coming from Yamaha as a recall or silent recall or whatever next month or in November, do you guys think it'll affect any performance part that is added based on the current ECU setting? For example; intake, exhaust, clutch kit, PCV?

As someone mentioned prior, it seems ALL '14 and '15 models are affected.

That's kinda what I'm getting at, mpi has based our turbo kits on the stock ecu, I'd hate to have a reflash that could potential hurt a sled with some power adders

 

[GTPower]

That's kinda what I'm getting at, mpi has based our turbo kits on the stock ecu, I'd hate to have a reflash that could potential hurt a sled with some power adders

This is turning into a revolting development for turbo guys and NA Vipers alike. My sled will be NA, but all performance items will be done by Allen Ulmer, which I'm sure based his gains on the current ECU settings.

 

[RTX]

Again, its just my belief, but i think the reflash will address hot and cold start issues and maybe a few of the odd codes that seem to get thrown for no apparent reason.
It has always been my understanding that this is the sole reason behind the reflash.
never have i heard or read that a factory reflash was being developed as a performance enhancer or is being designed as a power adder.

With that in mind im not sure why there is worry that the reflash wont work with your turbos or any other parts.
I dont think adding some fuel or air on initial startup is going to give you such an issue that you lose the motor.
But thats just my opinion

 

[TD Max]

That's kinda what I'm getting at, mpi has based our turbo kits on the stock ecu, I'd hate to have a reflash that could potential hurt a sled with some power adders

I'm not sure that I follow your logic here. A factory reflash from my perspective would simply be a bug fix to help with issues reported by first year owners. I seriously doubt that it would have anything to do with overall performance and certainly nothing above and beyond what the 2015's have for performance. With MPI turbo kits available for the 2015 model year units with Yamaha's blessing, and with the close relationship between MPI and Yamaha, I would certainly expect that they have discussed this pending release.

 

[cannondale27]

I agree. I don't believe they will be adjusting the maps other than maybe the starting maps. These type of issues are caused by the way the information gained by all the sensors and inputs are processed. The processing is what is messed up. It has to be since the issue is not predictable for most of us.

 

[YamahaTim]

I'm not sure that I follow your logic here. A factory reflash from my perspective would simply be a bug fix to help with issues reported by first year owners. I seriously doubt that it would have anything to do with overall performance and certainly nothing above and beyond what the 2015's have for performance. With MPI turbo kits available for the 2015 model year units with Yamaha's blessing, and with the close relationship between MPI and Yamaha, I would certainly expect that they have discussed this pending release.

I don't think it will change anything with the MPI turbo. They are not going to change anything that would involve the turbo. So Berry I think you will be fine! Now I never had the hot start issue, but I would still do the reflash. You can call Matt and ask him. I was just talking with him at Haydays and he didn't say anything about it affecting the turbo at all. So no worries! And like said before this isn't going to add HP or anything. Just fixing the start issue.