So I took the carb off because I'm switching to pre-mix and want to make sure everything's clean. I got a new in-line filter (had none previously) and wanted to install that.
So I took the fuel line off the back of the carb and put a clear Glad-Ware container underneith... A little bit of the fuel that came out was brick red. So i opened the petcock and let a little more come out and it was perfectly clear. I installed the filter and decided to crack open the carb. First, i took the K&N off and noticed this same color fuel sitting in the lip of the carb intake.
As I dug further in more and more of the fuel in the carb was this tainted red. I took the banjo housing off the back to clean the filter and there was a TON of this red gunk back there, some even made it past the filter! The filter was almost half-clogged with it! I took teh bowl off and the whole bottom of the bowl was filled with this same residue.
I HAVE ridden this moped within the past month and it ran amazingly, started 1st kick and all. I suppose it's great that I caught a potential problem now... but my concern is what caused it to begin with? The tank had fuel in it, there's no rust in the tank, the gas coming out of the tank is clear... so it must've been something inside the carb to begin with..
Anyone have any ideas?