Last time I rode my blaster I was on it pritty had and I just died, and wouldn't start. I replaced the plug and did a compsession check on it. I know it supost to 180+ psi. So it took 3 kicks to get to 120. I know I need a rebuild, but should it run at 120 psi. Just wanna know if there's other issues I need to deal with when I rebuild.