won't start or run w/o assistance

[PorterGuy85]

Hello all, I have an '85 aero nb50m that I just got all back together & saved from the scrap.

I can get it to start & run with throttle 1/2 way down or so. Wont idle or start on its own without giving it gas. Also, while it is running there is a bit of fuel trickling out of carb overflow. Sounds & runs good.

Here's the given

Carb taken apart & cleaned
Fresh gas
Fresh oil
Tried multiple airbox combos (filter on/off/ cover on/off)
New ngk plug
Carb setting tried @ 1 3/4 & 1 1/4 turned out
**Not sure where the idle screw should be set at**
Exhaust should be ok.

Heres a video clip

Thanks In advance


https://youtu.be/n_Ozjf3prUk

[mousewheels]

Wont idle or start on its own without giving it gas. Also, while it is running there is a bit of fuel trickling out of carb overflow. Sounds & runs good.

Fix the issue causing the fuel level to be too high. Engine sounds rich when it died in the video and a high fuel level can cause rich running.

• Inspect the float needle for damage/wear
• Check for foreign matter between the float needle/seat
• Seat may require restoration Some use cotton swabs and toothpaste to polish the seat

Our wiki is currently down, but we have pics of dirty seats at this link

[PorterGuy85]

Thank you, I will do the following and read into the link. Any tips on pulling carb off w/o getting fuel everywhere?

[mousewheels]

Any tips on pulling carb off w/o getting fuel everywhere?

You can drain the carb bowl before removal into a container. Aero carb is slightly different from the pic.

Drain_Screw_and_Hose.jpg (46.18 KiB) Viewed 5235 times

[paulpauly7]

or un bolt it take it outside and tip it upside down

[PorterGuy85]

Got it off, took pics. They speak for themselves. I took it apart & it's soaking.

[PorterGuy85]

Few more pics

[PorterGuy85]

Here's how it looks now, I can't seem to get it any more "glossy" but it is cleaner.

[PorterGuy85]

Pics

[PorterGuy85]

Hopefully it gives me better results

[mousewheels]

Looks better - shocking before pics of your prior to re-cleaning of the carb. Float needle had crud on the tip too - thanks for the pics

[PorterGuy85]

Starts with a push of a button & fires right up!!!!

Took it for a short 1 mile ride. Bogs a little while riding. but starts every time by itself.

Couple vids.

https://youtu.be/Se_2Izvb3r8


https://youtu.be/mFf_tnn17ec

[Dio89Elite]

That's awesome to hear/see another one being saved from the scrap!
I like how your dog just laid there in your first vid... didn't even flinch when you started the moped up.
Thanks for sharing! I hope you'll enjoy and have many fond memories with your new ride.

[PorterGuy85]

Yeah he is super awesome. Always in my vids/pics. Nothing bothers him, I have a vid in my youtube uploads of me vacuuming him!!!! Huskys are great!!!

[PorterGuy85]

https://youtu.be/Loc3oAuRZls

ÔåæÔåæ A quick riding vid ÔåæÔåæ

If I give it much more gas than this, she'll bog down. & eventually stall. Wait a couple of mins, startup & ride. Not enough air flow when it gets warmed up? Air/fuel screw is about 1 1/2 turns out.