Join Date: Aug 2008
Location: West Greenwich, RI, USA
Help - Still Sputtering
Before I get to the issue, a little history of how I got here. A week or so ago, out of nowhere, my 04 LT with just over 13K miles stalled at idle while warming up. On the 20 mile trip home, she stalled at every stop light as I decelerated. By the time I got home she no longer stalled but was running a little funny (can't really explain the symptoms). Fast forward to a few days ago, while cruising she was sort of sputtering, making a popping sound - almost backfiring. She was idling around 1000 rpm.
My initial thought was that it was a bad tank of gas, so I decided to let her idle and burn off the gas in the tank. After a few minutes I remembered reading various threads here regarding the "woosh" sound when opening the fuel tank. (Incidentally, I noticed there was water dripping from a tube at the back of the bike, which I later found out to be connected to the canister). Opened the tank, and sure as heck, she wooshed for about 4 -5 seconds. Using knowledge from the HOW I deduced that the tank vent line was not clogged, which left the canister.
After doing the canisterectomy last night (easy!), she was idling a little higher (about 1100 - 1200 rpm) but I still heard some popping in the exhaust. I completely removed the gas cap and started her back up and she continued to do the same (therefore I do not believe the issue to be a tank venting issue).
On the ride in this morning, I noticed that she ran a little better than she had for the past few days; not sputtering as bad, but it is still "popping" occasionally especially when I let off the throttle, so the problem did not go away completely. May have been my imagination, but I felt she ran poorer as she warmed up. Opened the gas cap when I arrived and did not hear a woosh.
About 400 miles ago, I did the 12k service myself (about 1k late) - fuel and air filters, spark plugs (torqued them in properly), and all of the fluids. She has run like a clock for those 400 miles, until about a week ago.
I'm still running the same tank of fuel so I have not completely ruled that out yet (I use this gas station almost exclusively for all my vehicles and have never had a problem).
What else could it be and why would it just come on like that?
2004 BMW K1200LTE - Rosie (As in Whole Lotta Rosie)
1996 HD Sportster XLH883 Hugger (sold)
1986 Honda Interceptor VF500F (sold)
Your chosen perspective changes everything. - Unknown Author
"You are what you repeatedly do. Excellence is not an event - it is a habit." - Aristotle; 384-322 BC, Greek Philosopher and Scientist