Gv650 lams conversation
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While i am not in AU , so i am not too familar how they restrict it down there. Here in the UK, they just restrict the throttle bodies so that you can’t do a full throttle twist , usually there is a stopper welded that limits how much the intake opens up. You may have to look at yours to see if that was similar.
GV650 ECU for GV650 only. As GT bikes have their own harness that matches the ECU it comes with and may have 1 or 2 extra sensors more than the GV.
As yours is a DAEWOO or (rarely a Mitsubishi) ECU , you’re locked down to that specific ECU to ensure compatibility (not expecting issues putting a wrong a ECU) – Though some people have tried to shoehorn a GT ECU in to a GV, it was hit / miss . GT650 would also have LAMS done in your country if that was the case too, which leaves us to look at the throttle bodies for restrictions applied.
Tacho = You can study the wiring diagrams uploaded on this site via its service manuals , look for a wire that says TACHO Signal, then get another “standalone” RPM reader , mount it to the handlebar if possible as an additional gauge. Tap in to that aformentioned wire. That’s how I would try to do it personally.
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thank you. do you know where i can find a restiction plate
You will have to take apart your air box , then look around your throttle area for the restrictions that may be placed.
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Where can I buy one
Look around your local garages for SV650 tunners , they will fabricate or get SV parts to retrofit to your GV and get it certified if your insurance requires it. SV650 and GV650 are different but distant cousins , so it wouldn’t be too much work (hopefully) for your local garage to do it & put it on a dyno to see how much torque its making & HP. Here in UK there limit is about 46 HP for restrictions to qualify, you may have to check your local laws.
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