Exhaust and jetting

driller · 07-06-2012, 12:51 AM

The battery box and frame make using the existing pipe pretty complicated for the kind of silencer Spud used on his zong. The gy-5 would probably require some custom piping. It comes apart just in front of the bolt at the frame above the brake lever but at that point it is running almost level with the ground.

The usual work around for the gy-5 is to drill a 3/8th or 1/2" hole or 2 in the end of the muffler. It gets is flowing nicely and doesn't make much louder.

The usual jet for the stock carb is about 110 depending on your altitude, I had good success with a 107.5 in eastern Ks at around 900ft and I believe Spud left his stock as he is pretty high most of the time(I couldn't help it Spud) seriously he lives and rides mountains over 5000ft.

07-06-2012, 12:51 AM	#1
driller Join Date: Jul 2007 Location: Lawrence, Ks. Posts: 195	The battery box and frame make using the existing pipe pretty complicated for the kind of silencer Spud used on his zong. The gy-5 would probably require some custom piping. It comes apart just in front of the bolt at the frame above the brake lever but at that point it is running almost level with the ground. The usual work around for the gy-5 is to drill a 3/8th or 1/2" hole or 2 in the end of the muffler. It gets is flowing nicely and doesn't make much louder. The usual jet for the stock carb is about 110 depending on your altitude, I had good success with a 107.5 in eastern Ks at around 900ft and I believe Spud left his stock as he is pretty high most of the time(I couldn't help it Spud) seriously he lives and rides mountains over 5000ft.
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