What's wrong with the carb you got ??
1) You can get a free pdf manual here:
https://oddatv.com/wp-content/uploads/2 ... Manual.pdf2) Parts book pdf below.
3) Pressure testing a two stroke pdf below.
4) Setting your pilot jet: How to set your pilot jet:
In my opinion this is the most important for driveability on an oddy. They are just a pain in the azz to drive if it is constantly stumbling and not taking off from low rpm. Setting the pilot jet requires one of those small induction tach's that you can buy on Amazon cheap. This is what I use:
https://www.amazon.com/Runleader-HM032R ... ll+engines
1) Basically you just wrap that wire around you sparkplug lead
2) Set your air screw out to 1 1/2 turns
3) Start
Engine and let it warm up if possible
4) Set the Engine idle as low as you can, but not so that it will stall on you
5) Turn the air screw out half a turn at a time and wait about ten seconds before you do it again. What you are looking for is the point where the Engine idle rpm does not rise anymore as you are unscrewing the air screw. If you are out more than 1 1/2 turns or less than 1 1/2 turns then you have to change your pilot jet. If your air screw is more than 1 1/2 turns out, this means you need the next
size smaller pilot jet. If the air screw is less than 1 turn out, this means you need the next size larger pilot jet. Change the pilot jet and redo this test.
CAUTION: You don't want your air screw to fall right out so don't go more than 4 complete turns out. At that point you will have to change your pilot jet anyways.
5) Carb -- you want a vm28 spigot mount:
https://www.jetsrus.com/carburetor/carb ... eries.html