I have recently installed a HMF on my warrior and am in the process of rejetting. I rejeted to what i thought it should be and it didnt run perfectly so I wanted to pull the spark plug to see which way I needed to go, richer/leaner and for the life of me I cannot get the boot off of the spark plug, and in the process of pulling I noticed that the spark plug was loose. so its parked now until i can find out what the deal is. help me please!!