Ok it's not the coil. I did notice that when it runs only the side with low exhaust pressure, the pipes are cold. So it's like there's no combustion at all going on in that cylinder. I didn't do a compression test yet but when I crank it and put my finger over the hole it feels just like the side that runs fine. I won't find out for sure if it's bad until I do the compression test though. So I guess the only thing left if the compression is good is the reeds. Could it be anything else?
Thanks for the replies!