The GV650 EFI started in 2008 2 ECUSĀ (1 normal and other was made in Japan) because in 2008 we also had special aniversary edition red frame GV650 models,Ā alsoĀ last generation (around 2013-2020) we have DELPHI ECU using Delphi Electronics and revised fuel pumps ,Ā Ā and the upcoming GV650 Pro will be DELPHI electronics again.
ALL EFi models are OK ,Ā it is just regulator was problematic , so we upgrade to Shingden Regs and Electrosport StatorsĀ (like you saw on this website’s shop pages)
Later EFI models (Delphi) use slightly smaller diameter stators , they work OK.Ā Ā But still recommended to change regulators to a beefier one or replace OEM one as soon as they start acting funny.Ā Many fake shingden regulators online, so it is better to go to a local junk yard to find a wrecked Honda (too many models to list).
Hope this helps.
// Meditation doesn't mean you have to sit still....