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Forum: Zongshen RX3 12-21-2015, 03:08 PM
Replies: 8
Views: 59,393
Posted By SpudRider
Many Yamaha motorcycles also employ electronic...

Many Yamaha motorcycles also employ electronic fuel injection. Although the Yamaha EFI systems are different from the Delphi EFI system, one can learn a lot about EFI operation by watching the...
Forum: Zongshen RX3 12-19-2015, 09:11 PM
Replies: 8
Views: 59,393
Posted By SpudRider
After EFI problems are resolved, the engine fault...

After EFI problems are resolved, the engine fault codes will remain in ECU memory for about a week, after which they will be automatically erased. However, if you wish to erase the fault codes...
Forum: Zongshen RX3 12-19-2015, 08:49 PM
Replies: 8
Views: 59,393
Posted By SpudRider
Using the Digital Dashboard to Decipher EFI...

Using the Digital Dashboard to Decipher EFI Trouble Codes

In addition to the diagnostic scan tools, you can use the engine warning light of the Siemens dashboard to diagnose EFI problems. The...
Forum: Zongshen RX3 12-19-2015, 04:11 AM
Replies: 8
Views: 59,393
Posted By SpudRider
The following video was produced by Zongshen, and...

The following video was produced by Zongshen, and it is the source for much of the text in this thread. ;)

https://www.youtube.com/watch?v=I6nzl8igRaY
Forum: Zongshen RX3 12-19-2015, 04:07 AM
Replies: 8
Views: 59,393
Posted By SpudRider
Rebooting the ECU Perform the following...

Rebooting the ECU

Perform the following steps to reboot the ECU.

1. Turn off the ignition for 15 seconds.
2. Turn the ignition on/off for 5 cycles. Make sure each cycle lasts about ½ second,...
Forum: Zongshen RX3 12-19-2015, 04:06 AM
Replies: 8
Views: 59,393
Posted By SpudRider
DIAGNOSING TYPICAL ENGINE PROBLEMS ...

DIAGNOSING TYPICAL ENGINE PROBLEMS

Insufficient Fuel Supply

Turn the engine off for 15 seconds. Turn on the ignition, and listen for the fuel pump to build pressure in the fuel system.
...
Forum: Zongshen RX3 12-19-2015, 04:03 AM
Replies: 8
Views: 59,393
Posted By SpudRider
Verify Proper Engine Operation Start the...

Verify Proper Engine Operation

Start the engine and check the following values. Engine rpms should increase, and decrease with throttle movement. After coolant temperature reaches 50 degrees...
Forum: Zongshen RX3 12-19-2015, 04:03 AM
Replies: 8
Views: 59,393
Posted By SpudRider
Diagnostic Process for Solving Typical Engine...

Diagnostic Process for Solving Typical Engine Problems

Diagnosis of engine problems is facilitated by using either an engine scan tool, or PCHUD software on a laptop computer.

Compatible Scan...
Forum: Zongshen RX3 12-19-2015, 04:00 AM
Replies: 8
Views: 59,393
Posted By SpudRider
Delphi EFI System: Troubleshooting and Maintenance

Electronic fuel injection has seven basic advantages.

1. Improved Fuel Mileage of 10% to 15%
2. Improved starting and cold engine performance without engine warm-up
3. Improved acceleration and...
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