Yamaha Discussions about Yamaha ATVs.

Carb setting with direct air filter

Old Oct 13, 2001 | 12:47 PM
  #1  
Tmberguy's Avatar
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Weekend Warrior
Joined: Oct 2001
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Hi!

Can anyone help me? I just bought a direct air filter for my sister's 97 Breeze. After putting it on, the bike wont run with the throttle fully open as the engine dies. I believe it a lean mixture now, but after playing with the carb exterior needle and after an advice of screwing it fully then openning 1/4 turn, it's the same. It on the factory's (?) 3 turn on the needle valve again, and as i switch the filter for the original box one it pulls like hell (okay....not Like hell, but close), compared with the new mod.
Can anyone tell how to adjust this thing? I tried my 95 timberwolf without an air filter (straight intake) to try to be as close as possible to the Breeze situation and it pulled ok after a shot hesitation. The carbs are the same. HELP!!!!

Thanx!
 
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Old Oct 13, 2001 | 02:15 PM
  #2  
Kawi250's Avatar
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Joined: Aug 2001
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Easy, it's lean on the top end so that means you need to go higher on the main jet. Go up one or two sizes on the main jet and see how that works. Let me know how it comes out.
 
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