This is a fact, I'm afraid, and the reason why there are soooo many aftermarket upgrades for ECU flashes and PCV and all the others. Theirs is a balancing act, and many times get it wrong, or the 'best they could do' under the sound/emissions regulations and corporate pressures. I know they will flash to a 'stock bike condition,' but with their version of optimized stock (no aftermarket upgrades).īut I disagree with the concept of Yamaha engineers - they have quite a lot of limitations and barriers to making the best power and throttle response. They also have seemed to be very customer-sensitive, so your incident is indeed a unique one from what I've read and dealt with first hand - they have flashed my ECU 3 times, with differing states of tune.

Yikes, sorry to hear things didn't work out for you, but many, many tuners and builders and riders on this forum have been very happy with 2WDW flashes - me included. My strong belief is what couple guys playing with dyno and pretending to be a 'real' mechanics in their garage can't be smarter than a hundred engineers working at the Yamaha factory. Lauderdale area, I can bring both ECU (re-flashed and OEM) and we can compare real graphs. Later, I played between these two ECUs and noticed what the original Yamaha factory's flash is much stronger in terms of power response, maybe a little bit more brutal but this only plays for better bike charisma instead of having anemic, lagging but the smooth engine. This is why I ordered another original used ECU from eBay, replaced re-flashed one and all problems are gone the same day. Basically, they refused to re-flash ECU back to OEM flash and credit back my money in a first my request month later after order. I send an email to 2WDW they said the described problem is with my MAF and O2 sensors. The second was when someone started to change its line towards my place in traffic and I have to speed up, these two seconds can cost me a life. First when the bike has the lag in the middle of exit from the round highway merge section. The biggest issue I noticed a couple of weeks later, the bike after ref-lashing got dangerous lags in power between 3.5K RPM to 5K RPMs (which is my normal commuting RPMs). They refuse to return fan T range settings without returning deceleration cut. The fan started kick-in and out every couple minutes while I was standing between traffic lights. After some real-world riding, I realized there are some issues pop up after ECU re-flashing, it was summertime and because 2WDW lowered kicks-in temperature of a cooling fan, my bike became totally uncomfortable to ride in heavy stop-an-go-traffic, my legs start to melt and fries. Fist ride - 'Oh man, it is buttery smooth!'. I was excited waiting for freshly re-programmed ECU. I sent my 2015 FZ-07 ECU to '2 Wheel Dynoworks Inc'. 2 WDW cares only about getting money and will screw you if you are complaining.

Yamaha fz 07 ecu flash