Wow! What the heck is this??

[dart451]

Working on a Craftsman tractor, 917-275034...had been sitting for a long time. Had bad gas in the lines, tank. Removed tank, emptied and let dry for about a week. Replaced all the fuel lines, fuel filter, got it started and then poof, it finally dies and I can't get it started again. Removed fuel line from fuel pump, smells of nasty varnish gas again and it's bright orange! Fuel pump working good. So, the only thing I can think of is...I didn't actually rinse out the tank! I was emptied and dried but not rinsed! Is it possible the bad gas dried residue, (that I couldn't see) became liquid again with the new gas I put in it? Now, the fuel filter looks like clear gas and it runs fine. But, I've been doing this for a couple days...it starts up in the morning, runs a bit (perhaps running on the good gas in the bowl?) then dies, gas is orange again! Now, I'm hoping I've cleared all that crap out of the tank by now, I added more new gas. I am going to let it sit for awhile and see if it does the same thing tomorrow. Anyone have issues such as this??

[bobodu]

Old Sta-Bil overdose....know as "The Red Goo"....sometimes looks orangish too.
Not gonna look up the numbers but it could also be rust...

[dart451]

All plastic tank so I'm sure it's not rust. And the smell is unmistakable...smelled like bad gas. I use Stab-il in all my machines during the winter...I've only had one guy that put way to much in his log splitter and it wouldn't run anymore...

[dart451]

All plastic tank so I'm sure it's not rust. And the smell is unmistakable...smelled like bad gas. I use Stab-il in all my machines during the winter...I've only had one guy that put way to much in his log splitter and it wouldn't run anymore...