- Flushed ALL of the old gas, replaced with brand new gas about 1/2 full after complete clean of carb and new petcock (was broken) + fuel lines
- Cleaned the carb (complete cleaning with carb cleaner, and fished out all of the debris in all the pipes/tubes using special tools, and confirmed all are completely clear multiple times.
- Cleaned all of the Jets completely. Idle screw took me nearly an HOUR to finally clean after being completely blocked.
- Bought and replaced the float needle and float (sits fine now, does not get stuck etc.) although I suspect it worked just fine before as it still runs rich.
- Had a broken auto petcock so I've replaced it with a genuine one and new fuel tank filter
- replaced inline fuel filter + hose for the fuel filter (clear hose to see fuel flow)
- bought and replaced the spark plug
- cleaned the diaphram needle and made sure of a good seal for the diaphram (confirmed it's a good seat as I've been able to get it up to 55+ no problems)
- Changed oil and changed gear oil to specs (measured both, and perfect levels)
Now, here's the interesting part. Scooter ran FINE, got up to speed, but was always running a little rich. A few times when going to start it, I noticed the smell of fuel, and once I had fuel spilling out of the air filter box. I removed the spark plug and noticed it was pretty foul (black colored) and let to dry, kick started out a considerable amount of fuel, and replaced after cleaning the spark plug. Scooter ran fine again.
Then one night, I decided to swap out the PCV vacuum line, once I did, scooter would not start. I then replaced the vacuum line, and still no luck. I could see fuel coming down the line, but still no luck. After cranking it for 20 seconds, it would occasionally burst to life, and then immediately die.
again, i could smell fuel, and pulled the spark plug to see it again covered in fuel...
I guess my question is, what would cause my engine to become completely full of gas constantly when starting it? Or cause it to run rich so much?
Can someone speak to what exactly what part of the carb would cause the carb to completely drain gas into the engine?
I am suspecting it still has something to do with the float needle and float itself, so if anyone can share youtube videos/images of exactly how it should look + when tilting the carb, when it should open etc...
I also could not remove the actual gold jet/ring that holds the needle/allows fuel, so could someone let me know if I can remove that and/or if it's necessary to remove and clean?
Thanks all in advance!