I bought some dirt bike parts and wanted to try them on my bike for more power. I had to cut up and weld my pipe in a very peculiar way due to the space I had available. I’m wondering if the pipe is simply too big, not enough header length, or if the way I got it welded makes the bike practically impossible to start. I also had to make a custom intake manifold for a carb that came with the parts and also because of the space I have available with my frame. I’m not sure if I have to rejet the carb for my bike or if the crease in my current manifold setup is what’s holding me back. I believe the carb is 16mm from when I measured it with a measuring tape, the taper on the slide is the same size as the NT. Last this is that I threw 2 or 3 base gaskets because at BDC the piston wasn’t flush and at TDC the transfer wasn’t fully open so maybe it’s timing for all I know.