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carb help please

T
Oct 7, 2013
1
0
1
mikuni TMX 35mm flatslides

purchased as fitted to POLARIS IQR RACER 600cc

having received the carbs i am a little puzzled as to the purpose of the fittings on the carb body

i have identified fuel in and the oil in nipple two pipes are from the body which are the float bowl breathers .

my question is what is the pipe that goes from the bottom of the float bowl back into the carb body that also appears to have some form of breather.

i had intended fitting power jets to the carbs and would appreciate any help and advice before i try and fit the power jet kits

thanks

Tyvek
 
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