Hi new here. I'm in Daytona , bought a 06 R3 roadster from local dealer about three weeks ago . She ran out great for the first 170 miles , then sitting at a traffic light she just died. Tried a restart no luck , towed to local shop , they had it 2 days said it was fine no codes , no issues with test ride. Picked it up rode about 50 miles then she started bucking then stalled at 60 , did a rolling restart ,it started by would not respond to throttle roll , a few seconds in it responded . Front tire at a 45 . Then the sputtering and stalling , barely got her back , trailered to a wrench . Five days later says that the idel speed controller valve (stepper ) bad . He has no access to control or reflash . Make any sense to you seasoned R3 ERs. Sorry so long winded. PS the only thing I am aware of is jardine slash cut pipes as far as mods . Not sure if previous owner remapped.
Had a similar issue that pointed me to a engine TPS code , after screwing around it turned out the be the fuel pump only putting out 9psi i think it has to be 34ish psi , replaced the pump then it was all good