New X-Pro 250 street bike does not idle and dies

toms_xpro250 · 06-09-2024, 09:18 AM

My brand new X-pro X2 4th EFI bike will not stay running. I have tried to adjust the valves as they had 0 clearence from the factory. It runs a little better but dies at stop signs. When it dies you can still hear the fuel pump running for split second or so. I can start it up in the driveway, crack the throttle and it dies right away. The spark plug that came with it is a resistor type plug but also had a resistor installed in the spark plug cap as well. so had to change the spark plug but that still did not fix the issue. Not sure on the camshaft timing as there is only 2 lines on the cam gear and the letters "FL" so at TDC I have the cam lobes pointed down in a V shape.

I have only been able to ride about 40 miles since getting this May 1st of this year. My 150 scooter had more power then this thing does.

Asking for all the help I can get.

Thank you
Tom

J4Fun · 06-09-2024, 01:42 PM

Hi Tom, because it’s brand new and EFI, my first thought would be to check your wiring connections carefully. My thoughts…

Gstreet · 06-16-2024, 11:56 PM

All the 250cc class (223cc actual) Chinese efi street bikes suffer with this issue. It is caused by poor programing of the ECU. I have an ECU flash service that I money back guarantee will not only solve your stalling issue but will also add more power and overall performance to the bike. Check out my post in our China EFI Facebook group for details and poke around a bit in the group for member testimonials and reviews. You won't be disappointed https://www.facebook.com/share/p/JWe...ibextid=oFDknk

toms_xpro250 · 06-30-2024, 06:17 AM

New sparkplug and reset the TPS position and it runs a lot better now.

toms_xpro250 · 08-10-2024, 07:13 AM

Thank you. The ECU Flash is awesome. More power and no more stalling.

06-09-2024, 09:18 AM	#1
toms_xpro250 Join Date: Jun 2024 Location: Wells MN Posts: 3	New X-Pro 250 street bike does not idle and dies My brand new X-pro X2 4th EFI bike will not stay running. I have tried to adjust the valves as they had 0 clearence from the factory. It runs a little better but dies at stop signs. When it dies you can still hear the fuel pump running for split second or so. I can start it up in the driveway, crack the throttle and it dies right away. The spark plug that came with it is a resistor type plug but also had a resistor installed in the spark plug cap as well. so had to change the spark plug but that still did not fix the issue. Not sure on the camshaft timing as there is only 2 lines on the cam gear and the letters "FL" so at TDC I have the cam lobes pointed down in a V shape. I have only been able to ride about 40 miles since getting this May 1st of this year. My 150 scooter had more power then this thing does. Asking for all the help I can get. Thank you Tom Last edited by toms_xpro250; 06-09-2024 at 09:32 AM. Reason: add more information
	0

06-09-2024, 01:42 PM	#2
J4Fun Join Date: May 2021 Posts: 358	Hi Tom, because it’s brand new and EFI, my first thought would be to check your wiring connections carefully. My thoughts…
	0

06-16-2024, 11:56 PM	#3
Gstreet Join Date: Jun 2024 Posts: 2	All the 250cc class (223cc actual) Chinese efi street bikes suffer with this issue. It is caused by poor programing of the ECU. I have an ECU flash service that I money back guarantee will not only solve your stalling issue but will also add more power and overall performance to the bike. Check out my post in our China EFI Facebook group for details and poke around a bit in the group for member testimonials and reviews. You won't be disappointed https://www.facebook.com/share/p/JWe...ibextid=oFDknk
	0

06-30-2024, 06:17 AM	#4
toms_xpro250 Join Date: Jun 2024 Location: Wells MN Posts: 3	New sparkplug and reset the TPS position and it runs a lot better now.
	1

08-10-2024, 07:13 AM	#5
toms_xpro250 Join Date: Jun 2024 Location: Wells MN Posts: 3	Thank you. The ECU Flash is awesome. More power and no more stalling.
	1