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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 25 Apr 2004
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carb adjustment
Does anyone know how to set the screw which adjusts the opening of the CV carb relative to the slide carb on an XTZ660? At what opening of the slide carb should the CV carb start opening? Should they both reach full open together or does the slide carb reach full open first?
thanks
Shaun
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  #2  
Old 26 Apr 2004
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Put a 6 mm. drill in the first carb under the slide, then adjust the screw so that the 2nd carb just starts opening. Then make sure that the butterfly valve is exactly horizontal when the first carb is opened fully.

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Fred, XTZ660, Holland.
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  #3  
Old 26 Apr 2004
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Thanks Fred

Quote:
Originally posted by FredXTZ:
Put a 6 mm. drill in the first carb under the slide, then adjust the screw so that the 2nd carb just starts opening. Then make sure that the butterfly valve is exactly horizontal when the first carb is opened fully.
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  #4  
Old 29 Apr 2004
jim jim is offline
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can anyone tell me what the standar spec for the adjuster screw is? My manual does not tell me and I running on 1.5 turns out which seems to be fine, but a half turn in or out makes no noticable difference.
Jim- 1985 Tenere
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