Hello, I just put new coils, condensers, points and plugs in my motor. (sn#18102s-e10283) its a 18hp 71 model. I just tried it, she ran ok but it spits at idle. At high speeds it runs smooth (didnt seem to rev out as high). Ran it a few minutes and when I stoped to try some adjustments it spit and then died. Here's the problem the thing was really hot to the touch. Could running hot cause the backfiring. As for it running hot, what should I do first, change the thermostat or is the impeller probably the problem. Any help would be much appreciated.<br /><br />Oh yeah this motor has sat for about 2 years