I changed my ignition switch because I lost the key. Installed and put coils back on. When I go to start it turns over , runs for 5 seconds and backfires and shuts off . any one have any ideas whats wrong ? Please

 

I'd start by checking all wire connections

 

Checked wiring and switched wires on ignition and still did the same thing . turned Over , reved for 5 seconds then backfired and shut off.

 

EFI or Carb? Did you check for codes? Diagnosing a problem over the internet isn't always easy, but you'll get more help if you tell us what you're riding. Year, model, mileage, mods, etc.

 

1997 evo carberated fatboy

 

Did you wire the coil correctly?

 

I didn't take the wires off the coils , just took the bolts out of them to move out of the way so I could replace ignition.

 

If you moved it I would check to see if you pinched a wire or loosened a connection. Most likely something simple. If it worked before and doesn't now. Double check everything. Switch could be bad but not usually

 

Did you ever figure out your ignition switch issue?