2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 62Get this manual
Fuel system
3Check the float height as shownAdjust the float height if out of specificationFloat height d: 35.0 1.0 mm (1.38 0.04 in) NOTE: When adjusting the float height, do not bend the lever e
S6C14200
NOTE: The float should be resting on the needle valve, but not compressing it Take measurements at the position shown, opposite the float pivotFloat height d: 35.0 1.0 mm (1.38 0.04 in) 4Install the float chamberFloat chamber screw: Nm (0.3 kgfm, 2.2 ftlb)