2014 coleman 700 utv starts idles about 15 seconds then dies any thoughts would be appreciated

[Boone]

Coleman outfitter 700 efi utv

[T-boss 410]

Fuel pump?

[Boone]

New fuel pump, ECU,plug, injector,air filter, oxygen sensor, throttle position sensor,air idle adjustment 

 

[T-boss 410]

Well sorry. I wouldn't have bothered you with a reply if I had known you had replaced so many parts.

[Boone]

do you think it could be coil

[T-boss 410]

I suppose that's possible, but I would wonder why it would run at all. However, I'm far from an expert.

When you first start it, can you rev the engine before it stalls?

[Boone]

Yeah it will run but pops and backfires back through the air box, I have checked valve clearance and they are correct 

[T-boss 410]

Sounds like a timing issue to me.

[Boone]

I wondered about that, but have not checked it yet, I will give that a shot, thanks for your time 

[T-boss 410]

Good luck with that. Let us know what you find out.

[Boone]

👍

[Pop Bob]

Ok- here’s a thought. I’ve run into similar situations on outboards. They run when the enrichment loop is active at startup and quit when it kicks out. Backfiring through intake can also be from lean mixture. Put a spark checker on and as the engine dies see if you continue to have spark as it winds down. Now it could also be timing, but if it runs rather normally at idle till it quits I would be less likely to think so. But for the heck of it check the crank position sensor. Good luck. Keep us posted. 
 

Pop Bob

[motojoe]

It appears  that your stator pick up coil is going bad

[Boone]

thanks for the input, one thing I forgot to mention is the plug is black, I replaced the plug and same thing, black like it is getting to much fuel

[Pop Bob]

13 hours ago, motojoe said:

It appears  that your stator pick up coil is going bad

Motojoe. Please explain

Pop Bob