won't start or run w/o assistance
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- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
won't start or run w/o assistance
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
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
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- Veteran OG
- Posts: 3639
- Joined: Tue May 22, 2007 8:10 pm
- Location: North of Seattle, WA
Re: won't start or run w/o assistance
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.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.
- 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
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Thank you, I will do the following and read into the link. Any tips on pulling carb off w/o getting fuel everywhere?
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- Veteran OG
- Posts: 3639
- Joined: Tue May 22, 2007 8:10 pm
- Location: North of Seattle, WA
Re: won't start or run w/o assistance
You can drain the carb bowl before removal into a container. Aero carb is slightly different from the pic.Any tips on pulling carb off w/o getting fuel everywhere?
- paulpauly7
- CB900F
- Posts: 1945
- Joined: Tue Feb 21, 2012 6:57 pm
- Location: nz
Re: won't start or run w/o assistance
or un bolt it take it outside and tip it upside down
86 Nifty Fifty (spree)
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Got it off, took pics. They speak for themselves. I took it apart & it's soaking.
- Attachments
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- 2014-04-13 07-45-55-916-1.jpg (134.61 KiB) Viewed 5270 times
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- 2014-04-13 07-47-04-243-1.jpg (88.18 KiB) Viewed 5270 times
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- 2014-04-13 07-45-47-075-1.jpg (124.91 KiB) Viewed 5270 times
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Few more pics
- Attachments
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- And I must mention, this was apart & clean before I put in. Especially the first few pics of the bowl. Maybe some water molecules were still inside??
- 20140413_195337-1-1.jpg (149.27 KiB) Viewed 5270 times
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- 2014-04-13 07-46-08-871-1.jpg (86.8 KiB) Viewed 5270 times
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Here's how it looks now, I can't seem to get it any more "glossy" but it is cleaner.
- Attachments
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- 2014-04-15 07-27-46-720-1.jpg (136.95 KiB) Viewed 5248 times
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- 2014-04-15 07-28-02-711-1.jpg (74.76 KiB) Viewed 5248 times
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- 2014-04-15 07-28-43-271-1.jpg (88.32 KiB) Viewed 5248 times
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Pics
- Attachments
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- 2014-04-15 07-28-32-269-1.jpg (96.18 KiB) Viewed 5248 times
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- 2014-04-15 07-28-22-255-1.jpg (88.61 KiB) Viewed 5248 times
- PorterGuy85
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
Hopefully it gives me better results
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- Veteran OG
- Posts: 3639
- Joined: Tue May 22, 2007 8:10 pm
- Location: North of Seattle, WA
Re: won't start or run w/o assistance
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
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
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
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
- Elite
- Posts: 701
- Joined: Wed Feb 01, 2012 3:55 pm
- Location: 50th state
Re: won't start or run w/o assistance
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.
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
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
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
- Spree
- Posts: 201
- Joined: Thu Mar 13, 2014 1:58 pm
- Location: summerville, sc
Re: won't start or run w/o assistance
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.
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.