Yamaha TT-R90 2005 Service Manual page 146

PILOT AIR SCREW ADJUSTMENT
3 - 8
5. Install:
New
• Gasket
• Drain bolt 20 Nm (2.0 m · kg, 14 ft · lb)
6. Fill:
• Crankcase
Oil quantity:
Periodic oil change:
0.8 L (0.70 Imp qt, 0.85 US qt)
7. Install:
• Dipstick
8. Inspect:
• Engine (for oil leaks)
• Oil level
Refer to "ENGINE OIL LEVEL INSPEC-
TION".
PILOT AIR SCREW ADJUSTMENT
1. Adjust:
• Pilot air screw 1
Adjusting steps:
• Screw in the pilot air screw until it is lightly
seated.
• Back out by the specified number of turns.
Pilot air screw:
1-3/4 turns out
INSP
ADJ