Did the same guy put this spring on to hold the tail pipe in the exhaust manifold ?
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If so, his stinking thinking isn't that bad , It's a good modification
I use springs on my tail pipe too 1 on top and 1 on the bottom
2 springs pull pipe in evenly against the exhaust manifold barrel gasket
I highly recommend this mod to Whizzer owners
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Stock manifold The tail pipe was held in the manifold with just 1 set screw
I hope the set screw is still in your manifold - Just to plug the hole , not to hold the pipe
Use a jam nut so the screw don't fall out
Set screw is on the bottom side of the manifold,