Carb Settings and Notes for '87-'95 Yamaha FZR1000

49 States

Mikuni Type BDS37
Carb ID 2LH 00
Main Jet - 110 (1-4) 107.5 (2-3)
Idle Jet - 17.5
Fuel Passage Plug - No
Jet Needle - 5CT2
Needle Jet - 483 Y0
Float Height - 12mm
Air Screw - 3 Turn

Carb Settings and Notes for '89-'95 Yamaha FZR1000

49 States

Mikuni Type BDST38
Carb ID 3LK 00
Main Jet - 125 (1-4) 122.5 (2-3)
Idle Jet - 37.5 (No-Bleed)
Fuel Passage Plug - No
Jet Needle - 5CEW9
Needle Jet - 611 Y0
Float Height - 4mm
Air Screw - 2.5 Turn
Since these carbs have floats with two different height bobs, when measured traditionally,
they should be measured from the bottom of the jet block to the bottom of the float.
See picture