Poor Buddy wont start

[SnowATree]

Hi Everyone,

I just replaced my spark plug, battery, changed the gear and engine oil but my 2008 Buddy 125 won't start. It'll start revving (or the correct word I can't think of) but it won't start. Then I noticed this tube out, any idea where it goes? I can't find the right place for it that receives a tube end. Can anyone look at theirs and see where it ends or is connected to?

https://imgur.com/a/YiKoeaM
Pictures of the tube in question

[DeeDee]

That hose is supposed to be there. It is the drain for the carburetor bowl.

[SnowATree]

Just realized that with my wife’s help. So I cleaned the carb and replaced it now and before starting it should I clean out the fuel tank? It’s been sitting with almost no gas for many years, visually I don’t see rust.

[DeeDee]

Tank is empty? Is it steel or plastic? I would clean it out. I would pull the petcock, and fish out the inlet strainer. Clean it out w/ carb cleaner. Put some stong duct tape over the fuel tap hole and pour some Chem-tool, Seafoam, or other carb cleaner in there, about a pint. Put the gas cap back on and shake the daylights out of it. Side to side, front, to back, up & down. Remove the gorilla tape and see what comes out. If it's full of crap, repeat.
Replace your inline fuel filter before you refill with gas and go to start.

[SnowATree]

It’s plastic, I’ll do that with plastic then?

[DeeDee]

It's been sitting that long, you should flush out what ever crap is in there. I'd still pull the petcock and inlet strainer. Maybe use 4 oz of carb cleaner. Slosh it around. See what drains out. You can buy a 1/4" inline small engine flter at any auto parts store. Replace that as well. Where's my Ramone's swag?

[SnowATree]

Did the recommended, though I didn't take out the tank, I just popped a wheelie and shook it around. I think that'll be sufficient, drained the fuel and it's clear so I think I'm in the clear too. Thank you for your suggestions.

Side question, I'm only topping out at 45 MPH now, I believe it's because of the throttle calibration I did, I have to make it more taught to go faster right? I correct myself, the throttle pulls that moving device to its limit, so I don't think that's the cause.

After some more research, it seems like it could be a couple things, the connection between the the hose that's not the air intake hose, (what's that called?) or it could be or the 1/4" inline fuel filter which I haven't replaced yet. Is that simple enough to reach? Any video you guys might have saved in a playlist on the tube?