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71 cb175, rebuilt carbs, now when its on full choke it rev ups instead of dieing must still have an air leak, where to start? though to check each carb separately with carb cleaner then go from there. any other ideas?
 

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Just a thought - did you replace the O-rings on the intake manifolds? Can't identify the size of them as cmsnl.com lists them as part of a set for the carbs, but they're #1 in the fiche below

https://images.cmsnl.com/img/partslists/honda-cb175k5-super-sport-1971-usa-carburetor_bigma000158e20_cb64.gif

here's an eBay listing for them, but it would be hard to verify since the size isn't mentioned. one of the 175 guys will likely weigh in

https://www.ebay.com/itm/NOS-Honda-Intake-Manifold-O-Ring-Set-Of-4-CA175-CB200-CB350-CB400-CB72-CL175/352187206880?fits=Make%3AHonda%7CModel%3ACL175&epid=12020570302&hash=item51fffe4ce0:g:-lMAAOSwCGVX99mi
 
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