Well, the 682 is looking a little different after this weekend. I took it out in the yard for ~10minutes to make some passes and see how the deck was cutting. Came back and parked it in the garage while I went in to get a drink and cool off. Came back to a garage filled with smoke.
Lucky for me there were no actual flames, just a slow smoldering heat. Also really very lucky that the firewall did its job. As you can see in the next photo the gas tank actually got hot enough to melt back away from the heat.
I blame myself for not going over the tractor more closely before playing with it. My best guess from the remains is that something had left some nesting material between the carb and exhaust shield on the right side of the engine under the air cleaner where I did not notice. This seems to be where the majority of the heat was concentrated.
If the gas tank had gone it most likely would have taken the whole tractor and my garage with it before I got there with an extinguisher.
On the upside, I know have a nickname for the 682 (which will be Torch) and I have the chance to work everything over well. From the initial teardown I know I will be looking the following:
1-coil
2-condensor
3-plug wires
4-voltage regulator? I believe this is the three wire connection that was melted in the last photo.
5-air filter
6-fuel lines
7-carb rebuild? I am guessing the seals and gaskets took a good heat cycle and should be replaced.
8-gas tank
Things I will probably replace while there:
1-plugs
2-points
3-carb throttle spring
4-hood ornament
5-strip and repaint heat sheilds, hood, and grills
Another other suggestions of what to check out while I am in there? Also, any idea where to find an 82 series gas tank? I think I have found sources for the rest of everything from the sponsors.
Thank again!