Yamaha BLASTER YFS200N Owner's Manual page 114

Atv
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1. Main jet number
Jet needle clip position
q
1st groove
2nd ( Standard )
3rd
4th
5th
8-14
Carburetor setting chart
Temperature
Main jet
0°C (32°F) above
#230
(Standard)
+5°C
–15°C
~
#230
(41°F)
(5°F)
–10°C
–30°C
~
#240
(14°F)
(–22°F)
Changing the carburetor settings
Disassembly
1. Turn the fuel cock to the "OFF" position.
2. Turn out the carburetor drain screw and
drain the fuel.
Jet needle
Pilot air screw
2nd groove
1 1/2 turns out
2nd groove
1 1/2 turns out
3rd groove
1 1/2 turns out
q
1. Carburetor drain screw

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