Fazer 1000 Jet kit / EXUP

[vitman]

Thanks for the solid advice. This is my first bike, and on carbs too.
Could the picture change with some new info? Today my vacuum gauges arrived, so I decided to check carb sync and overall intake vacuum. I only have about 17–18 cm of vacuum at 1200–1300 rpm with the engine warmed up. Tried spraying brake cleaner around the whole intake, but there was no reaction.

Also, just out of curiosity, I checked the TPS setting according to the manual, and it turned out it was set at 10,000 rpm. I reset it to 5,000, and the bike started running noticeably better.
Still, it’s unpleasant to ride around town at a steady speed because of the shaking — you’re either accelerating or decelerating. At idle the throttle response is instant, and the revs drop back down smoothly and quickly. Acceleration after 4,000 rpm all the way to redline is clean, with no flat spots. No backfiring into the exhaust either. Sometimes though, the idle can sit 200–300 rpm higher than it should when hot. Not sure why — you ride for a while, stop, and suddenly the idle is at 1500.