We have ridden with the new flash on a completely stock ECU and thus far, we have yet to feel the hesitation or stumble, so far so good.
The new dealer flash replaces map #1, which in turn affects all three maps. Because map #2 and #3 are adjustments to the base map #1, they could only make adjustments but not totally cure the issue unless the customer upgraded to a GET or Vortex ECU. The issue on the aftermarket side with regard to hop-up shops such as Tokyomods and Twisted Development, they were able to make some adjustents to the settings on map #2 and map #3 only, map #1 is locked out. It’s pretty simple, call your dealer and take your bike in for the update. We have seen the bulletin but were not able to get a copy to publish for the public.
#HONDA ECU FLASH HOW TO#
Just recently Honda has issued a dealer bulletin and information on how to reflash all 2021 CRF450R, 450RWE, and we believe 450RX. Although it was not a total deal breaker, it is annoying and not very confidence-inspiring when it happens. What is the deal with the stock ECU settings? In some cases, really down low in the RPM range, if you have large throttle openings the CRF450R can experience a hesitation or hiccup for a split second. It’s been the talk ever since the first impression of the all-new 2021 Honda CRF450R.
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