u/Dry_Poet_9458

I Need to check my exhaust for blocks, Are there ways to be sure theres none withouth opening up the exhaust?

So I got this Am6 which ive put on a 75cc (good brand too) with all the tuning except the exhaust, It loses power uphill but the clutch isnt slipping and I got It jetted and carburated twice, at this point It can only be the exhaust but idk of its a stock one, the stock ones have blocks in them but I dont wanna open It up, how can I check for blocks in It?