Thanks for all the feedback!
A few updates:
1/2" EMT conduit is not an ideal exhaust material when its not properly braced apparently...
I broke a couple chains and couldn't figure out why.
Then I saw this, Oops.
More "robust" 3/4" rigid conduit exhaust
I had this mini bike for the last 18 years and decided to finally replace the very tired 3.5hp engine with the very common Predator 212cc. Then things snowballed out of control and I started modifying it because the 72 tooth rear sprocket basically made it a wheelie machine, and practically...
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