it probly feels so different because the fueling is stupid crazy lean in the first like one fourth of the rpm range, blame the feds for that. whaddaya know, give the engine the gas it needs/wants and everything is fine. ive been saying all along, the stock fueling is screwy.. hence the random shutoffs. meanwhile yamaha wasnt much help while mine was in the shop the other day. ill wait til its got about 1k miles on it then flash it.
I had taken the PC5 off the bike last night and the bike has two small quiet pops on first startup then no more pops and sound good. with the PC5 on and zeroed out it would lean pop loudly cold and warmed up at idle. I cant take bike out for a ride cause of weather. But the startup fueling seems to be sorted out now. Thanks to BTMoto for taking on the yzf-r1 projectYes Im having the same problems with the lean pops at idle. I had to add 17% fuel thru the PC5 to bring down AFR from 17 to 13.2. I was told to remove PC5 completely instead of zeroing out the trim table and try that. if it still lean pops then they will have to add fuel at idle. everywhere else in the table from mid throttle to wot is perfect +/- 1 to 2% correction.