i fitted my new airbox with better boots but with the choke off it idles at between 1000 and 800 and the shuts off. When i ride with the choke off it takes the gas fine and doesn't hesitate or stall but if i pull the clutch in the bike shuts off. I have the mixture
Screws at 3 turns out.
FZR keeps falling on Its face
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Re: FZR keeps falling on Its face
Adjust your idle stop. You should be idling around 11-1200.
1989 3LN1 FZR250R, currently stock.
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier
Re: FZR keeps falling on Its face
Is that that long screw thingy connected to the carbs
Re: FZR keeps falling on Its face
That's the one. 

1989 3LN1 FZR250R, currently stock.
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier
TTR Ignition Systems
TCI Repair and Ignition Transistor Upgrade
VRR Adaptor Harness
YZF600 TCI Adaptor
Running Light Fuse Carrier
Re: FZR keeps falling on Its face
I don't know if this helps, but when I first put the air box on, it sat in the yard for about two minutes before i drove it and idled around I'd say about 1000 to 1300. Then after that it started acting up once I began to ride it. 
