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If anyone is interested in "popping in" a set of larger carbs, here is some interesting info...

I measured the inner diameter (ID) and outer diameter (OD) of my 31mm, 34mm and 38mm carbs.



Here's what I found...

ID OD
31's 31mm 40mm
34's 34mm 40mm
38's 38mm 46mm







So, I didn't have to "spray the intake boots with WD-40 and squeeze them in" as some have suggested. The 34mm's just popped right in. The 38's however...
I'm used to hearing "that's too big for that hole, it won't fit"
 

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i think it may have been me who said to spray wd40 to get the 34mm's to fit....if so, i was wrong of course.....i was thinking of the 36mm slingshots. those, as i remember, were somewhat of a bitch to fit even with wd40...
 
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