Dying after idling

[gnvernon]

I have a 2012 super 8 50 2T that was in storage with stabilized gas for about a year and a half. I worked on it this past saturday and was able to get it up and running (even after finding a rat had been nesting in my transmission, causing everything to rust).

Once running, I can tell the idle is a bit low so I'm keeping my revs up at red lights. I tried adjusting both carb idle screws to no avail. As the idle is fading, if I try to give it any throttle, it will die almost instantly.

Any idea what this could be? Clogged jets? Clogged fuel line / filter? Appreciate the help.

[eamartin]

Have you pulled the carburetor, removed the jets and cleaned them?

[gnvernon]

Have you pulled the carburetor, removed the jets and cleaned them?

I have not yet. Planning to do that this weekend if not resolved by then, but was hoping I wouldn't have to. It's been a few years since I removed it to install larger jets so any video tutorials you have would be helpful!

[Tromper]

Just for grins.
Have you checked your valves, & while at it checked your vacuum system including your PAIR tube.
I had that crack on my S200.  It caused a similar issue.  Think it was a $12 part at the time or something.  If that is it order the gasket(s) for it as well. I forgot to, but had some appropriate material around from an earlier project so was able to make 'em, but it was a PITA.

[Iahawk]

mine would idle fine last year (S200) but if I gave it any throttle at all it would die. Classic symptoms of a clogged pilot jet. The opening in the jet isn't much bigger than a thick human hair and clogs easily. Not sure if this is your issue but cleaning the main and pilot jets would seem to be a wise thing to do after sitting for a year and a half.

Plenty of youtube videos on cleaning GY6 50cc carbs.

I disconnected just enough stuff to be able to flip my carb over to remove float bowl to get at jets.

[gnvernon]

So I was able to find some time to take the carb out and clean it... let’s just say it definitely needed a good cleaning.

After re-installing, I kickstarted it, and it fired right up. However, it died shortly thereafter likely due to improper tuning which I expected. But since then, I haven’t been able to start it. It sounds like the engine is flooded, but even when turning the mix screw to a lean mix, I get nothing. Any idea what to do? I tried using starting fluid and even that’s not helping it turn over.

Appreciate the help

[eamartin]

When you cleaned the carburetor did you removed the jets, clean them and look to be sure you could see daylight through both of them?

[gnvernon]

After cleaning them, yes I could see daylight through them. Was very happy with how clean I was able to get them.

Good news - I took the spark plug out and let it air out a bit and I was able to start it up within 3 kicks. It immediately idled super high and I turned the speed down a bit to be able to drive it a bit. Warmed it up and started adjusting the mix screw first, then the speed screw. It’s now idling great! Just need to figure out my starter now.

Appreciate the guidance everyone!