Need help please

[Tynker]

  Friend has a 2005 Heritage. Ck engine light keeps coming on. Cleared code(1353), front cylinder no combustion. But 5 miles later,light comes back on,as does code. Bike runs great at all speeds. What could make light and code not go away

[bump]

Spark plugs or plug wires

[Breeze]

I had that code while on a trip. The bike was running fine, but intermittent code. I pulled the plug wires off and slightly squeezed the connectors closed a bit. Never had the code again.

[mkd]

my 2005 eglide had the front plug wire rubbed thru at the front lower left of the tank on the left side of the steering neck where the wire runs along the frame and loops outward towards the cylinder head. ended up replacing the wire and putting a short section of wire loom over the plug wire where it rested against the tank seam.

[Tynker]

Spark plugs or plug wires

 He had E3 plugs in the bike. I removed them,and replaced with Champion plugs. Plug wires check as new.

[bigfathog]

I have had the tip of the plug unscrew slightly and cause this.

[Thermodyne]

Get the Electrical diagnostic manual out and run the diagnostic ladder for that code.  If you don't have the manual, buy it, prolly the best purchase you'll ever make for that scooter.

[Ohio HD]

[Tynker]

Thank you very much !!!

[Tynker]

Get the Electrical diagnostic manual out and run the diagnostic ladder for that code.  If you don't have the manual, buy it, prolly the best purchase you'll ever make for that scooter.

Update >> His bike only shows the ck engine light, if he goes up to, and over, 3K RPM. Then it does not go off until it has the code cleared.. WTF