2017 ktm duke 390
hello.. anyone did it?
Different manufacturer. No guarantee that whoever wrote the software chose the same default for an O2 error. Even if they did, you don’t know how rich it will run and long term running rich will do more than just throw a dashboard error.theyre doin it on the r3 forums and it works.... if the cel is the problem... i dont mind it...
Since you have the engine stripped, do the cerakote ceramic paint for the piston. As you had already seen, there isn't a lot of space for enlarging the ports. Don't forget to enlarge the throttle side also so there will be a perfect matching with the head.I will at some point port and polish the head. I am planning on doing a fair amount of work at some point as I am going to keep this bike for a while. I already have a head gasket kit that bumps the compression up a little. I'm going to look at porting the intake and exhaust ports and powder coating the valve cover as well. I have some experience port and polishing manifolds (Sorry for the crappy photo).
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