Got your attention with the boom part lol. But I pulled my plugs and they looked ideal for normal running however when I checked the gap it was a little tight around 0.4 for both. I read the manual and it calls for a gap between 0.5 and 0.6 so I adjusted to 6. I checked the valves and they were a little loose front and back, but one in the rear exhaust was on the tight side. I've adjusted to proper clearances. My issue is that Im running a bit rich and Cat bogged only on hill climbs. I would pump the peddle and it would clear out and run fine. But the motor shut down on me one a run and when I went to start it up right away I had an awesome display of flames that shot out the exhaust. Thanks Dave for yelling at me that Im on fire, but I easily doused the flame out with water. Cat fired up just fine after that and ran good back to camp. It only sputters on steep hill climbs. So now Im trying to find the problem and thought maybe that the small spark plug gap was not significant enough to burn all the fuel in the piston causing that problem? Mrbrandt has suggested I go through fuel pump and then check injectors which I am going to get to this week. Any thoughts on the spark plug while I chase down other possiblilties?