1984 NQ50 Ran when purchased but now doesn't.

Trying to get your Spree/Elite to run, or run better? Post your questions here.

Moderator: Moderator

Post Reply
nickhammer
Noob
Noob
Posts: 5
Joined: Tue May 12, 2015 8:55 pm
Location: michigan

1984 NQ50 Ran when purchased but now doesn't.

Post by nickhammer »

1984 Spree (no kick start)
Bought it running with weak battery & test drove it
Replaced battery
Test drove it down my street again, set tire pressure, test drove for 20 minutes. Did fine until pulling back into my driveway and it cut out on me (assuming I ran out of gas because the needle was dead empty) then filled a new tank with fresh gas and now wont start.

Replaced lines, rebuilt carb, new fuel filter, good spark, starter works, cleaned air filter, cleaned connections (no loose or broken wires), oil is coming from tank-line-pump properly, it's getting electrical power. When trying to start it seems like it wants to but it just doesn't turn over. I will add pictures and or video upon request.
User avatar
motormike
Moderator
Moderator
Posts: 4817
Joined: Wed Dec 29, 2010 10:58 pm
Location: Glasgow, KY

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by motormike »

Possibly the screen in the tank is plugged with rust and debris from running the fuel all the way down to empty.I didn't see you mention cleaning this screen.
Many other possibilities of debris clogging the system too.
Try running on auxillary bottle of gas to determine if it is the system before the carb, or is it the carb ?
RideRed
<Helix><(2)Gyro S><Rebel><CB100><Urban Express><Aero 50>
"Live Large - Ride Small"
User avatar
patthesoundguy
Moderator
Moderator
Posts: 3019
Joined: Mon Mar 29, 2010 11:38 am
Location: Nova Scotia, Canada
Contact:

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by patthesoundguy »

Auxiliary fuel tank is a great idea there mike! Rules out lots of issues quickly. I say replace the spark plug as well. I've been burned by a bad plug a couple times. The plug would fire outside the cylinder but not when installed. Gap the plug to 0.025"
Dude! Ya Can't Fix Stupid!
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
nickhammer
Noob
Noob
Posts: 5
Joined: Tue May 12, 2015 8:55 pm
Location: michigan

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by nickhammer »

Many thanks guys! I will try this all and post an update. For some reason it wont let me post the video of me trying to start it so if anyone wants to see leave me your email and i'll send it over. It's been ages since i've had one and never had problems with my 86' :(
UltraFJ40
Noob
Noob
Posts: 14
Joined: Mon Jun 02, 2014 3:38 pm
Location: South Fla

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by UltraFJ40 »

Hopefully it's just being problematic for you but only for a short time. A few months ago I was in a similar position as you and it was driving me crazy.

I took a breath, read these guys offerings, took another breath and re-tried everything again. In the end the little Spree is buzzing along just like it's supposed to.

Thanks again guys and good luck Nick. Stay patient my friend.
User avatar
patthesoundguy
Moderator
Moderator
Posts: 3019
Joined: Mon Mar 29, 2010 11:38 am
Location: Nova Scotia, Canada
Contact:

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by patthesoundguy »

nickhammer wrote:Many thanks guys! I will try this all and post an update. For some reason it wont let me post the video of me trying to start it so if anyone wants to see leave me your email and i'll send it over. It's been ages since i've had one and never had problems with my 86' :(
You have to use a service like youtube or photo bucket to host the video and then paste the link in a post.
Dude! Ya Can't Fix Stupid!
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
nickhammer
Noob
Noob
Posts: 5
Joined: Tue May 12, 2015 8:55 pm
Location: michigan

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by nickhammer »

I cleaned the screen inside of the tank and put the petcock back in place with the lines, no fuel came out until I blew into the petcock and then it came rushing out but still didn't fire when I tried to start it after re installing the lines (reed looked pretty dry too after I inspected that area. I'm going to guess that my petcock is bad, luckily someone local has one for cheap.


VIDEO
https://www.youtube.com/watch?v=LeqQJY7 ... e=youtu.be
User avatar
motormike
Moderator
Moderator
Posts: 4817
Joined: Wed Dec 29, 2010 10:58 pm
Location: Glasgow, KY

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by motormike »

nickhammer wrote:I cleaned the screen inside of the tank and put the petcock back in place with the lines, no fuel came out until I BLEW into the petcock and then it came rushing out but still didn't fire when I tried to start it after re installing the lines (reed looked pretty dry too after I inspected that area. I'm going to guess that my petcock is bad, luckily someone local has one for cheap.
You say fuel flowed when you BLEW into the hose...
it should only flow when you SUCK on the vacuum hose...
be very careful, but sounds like petcock may be faulty and not delivering fuel properly... :confused:



VIDEO
https://www.youtube.com/watch?v=LeqQJY7 ... e=youtu.be
RideRed
<Helix><(2)Gyro S><Rebel><CB100><Urban Express><Aero 50>
"Live Large - Ride Small"
nickhammer
Noob
Noob
Posts: 5
Joined: Tue May 12, 2015 8:55 pm
Location: michigan

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by nickhammer »

Yes I blew INTO the petcock. To be honest I wasn't sure what was going to happen but I heard bubbles in the tank and then gas poured out when I stopped. I also assume some gunk might have came off the screen in the tank with the backwards flow that it's used to seeing.
nickhammer
Noob
Noob
Posts: 5
Joined: Tue May 12, 2015 8:55 pm
Location: michigan

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by nickhammer »

New petcock is working correctly, cleaned the carb again. I poured a little gas in the cylinder and it bliped for a second and died (assuming because it used the fuel inside the cylinder I added) and is still doing the same thing. Any more input?
User avatar
patthesoundguy
Moderator
Moderator
Posts: 3019
Joined: Mon Mar 29, 2010 11:38 am
Location: Nova Scotia, Canada
Contact:

Re: 1984 NQ50 Ran when purchased but now doesn't.

Post by patthesoundguy »

You need to open the float bowl drain screw then apply vacuum to the vacuum line and fuel should flow out of the carb drain if the petcock is setup correctly and all is right with the carb. Close the float bowl drain replace the vacuum line and crank the motor over with your fngers choking the air box inlet. It should start. It may not idle but should at least fire up if there is fuel in the bowl. Be sure to set the idle air screw to about 1&› turns or so out to get a base line.
Dude! Ya Can't Fix Stupid!
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
Post Reply