The wobble may be due to low pressure in your rear tire. Verify 24 psi and see if it helps.
The 36 psi on the sidewall has absolutely nothing to do with the proper tire pressure for riding the back. That's the max pressure for the tire.I always ran about 20 psi in my G5 tires. I found that running over 24psi just made the ride extremely harsh. Getting the original sludge that comes in the forks is very important to improving the ride. I used 10wt fork oil in my forks and it had a pretty nice ride with the low air pressures. Those who haven't changed the fork oil to some real stuff, don't know what your missing, like a comfortable ride. It's something that should be as soon as you get home from buying the bike. And please use fork oil that is meant for the job. Some people use ATF, an old wives tale that started in the '50s before tere wasa any such thingas fork oil. The factories recommend motor oil which was a bit to stiff for forks. However, specific fork oil was developed and meant to be put in forks and works very well. But the ATF business still lives on...I don't know why.I put Hagon shocks on the rear. Dave Quinn will put the proper spring on it when you order it and give them your weight, etc. The stock shocks are just not good.Bare