This 'demon" has been around a while now. Machine runs great....half day. All of a sudden, starts sputtering and puking smoke. Not even half power. SOMETIMES...you can turn off, turn back on. Most the time, that only last minutes. Next day, runs like bat out of hell for...half day? Changed fuel filter MULTIPLE TIMES! Someone suggested my fuel lines may have collapsed...on inside. Changed them. Thought I fixed...NOPE! Sent to mechanic while back to check to see if something was in tank. He said it was clean? Tested it, ran awesome...only charged me a hundred because 'he didn't fix anything'. Well....that 30 minute run wasn't enough...and bam....back at square on. FRUSTRATING AND EMBARRASING!~! PLEASE HELP
might try taking off the fuel tank cap, system might not be venting, might explain the "shut it off runs for a short time" also
I'd say either fuel tank vent or electric fuel pump failing.
changed quite a few fuel pumps under warranty with these when they first came out. tee into the line to the injector pump and check fuel pressure mark
I know this is an old post, but came by it troubleshooting some present issues on my 289C2. Curious as to what you did to fix the problem? Thanks