| Author | Message | ||
     Nwrider |
So when I took my bike apart last it was running pretty damn good. (nothing taken apart that would affect run-ability)A brief ride last Friday she burped and sputtered a bit but ran decent. Yesterday I stretched her legs out on a nice back road run and she was not to happy about it. I must confess I had hoped she would not be sitting long and failed to properly "winterize" her. She sat with 3/4 tank and oils 1500m away from needing changed. She sat for approx 2.5 - 3 months. She seems a bit underpowered, burps and sputters on occasion, backfired a few good times and even stalled a few times when I would come to a completed stop. Like she was running out of fuel. There were a few moments that she would come to life and pull like she is supposed to. But very few of those moments. Where to start? Drain my tank?(I burned through most of the old fuel and filled her up) Change my fuel filter? Run a bit of injector cleaner? Plugs? Am I way off base here? Suggestions welcomed. Unfortunately its pouring rain again and her symptoms arise only when riding her. Thanks! | ||
| Harleyelf |
If she ran like she should for a few seconds at a time, your issue is most likely electrical. Change the plugs, clean the contacts on the coil, and make sure you have good contact at the ECM connector. If it still is intermittent, I'd think about the cam position sensor. | ||
| Nwrider |
Thanks Harleyelf.. good place to start. Someone mentioned possible moisture in the tank. She did spend most her time outdoors. Think it is safe to run a fuel drier/stabilizer such as "stabil" through her? | ||
| Two_seasons |
Fourth gear on the highway at WOT...all the way open. Does it continue to run rough? When you say "stretched" the bike's legs, do you mean above 3,000 rpm and on and off the throttle at highway speeds. Is it bucking, or put another way, seems to get power again at a steady throttle then when you snap the throttle it bucks? If this is the case, it may be your ETS either shorting against the cylinder or the sensor itself is on the fritz. | ||
| Harleyelf |
O2 sensor wire is another possible culprit. Have you read any trouble codes? | ||
| Gmaan03 |
2.5 to 3 months should not bother the bike to much. | ||
| Ratbuell |
Fill with fresh premium unleaded, and mix in some EFI cleaner too. Put the cleaner stuff in first, then add fuel - the fuel nozzle will put out enough force to mix it all up for you. | ||
| Qzpm150 |
I had almost the same problem. I took out my plugs and cleaned them. runs like a champ now! | ||
| Fahren |
I'm going with electrical also. These kind of burps can come from anything as simple as a loose ground connection, to a low battery, to the issues suggested by others above. 2 or 3 months is not long enough for major fuel system problems. Keep to the simple issues first, before you worry that it's a bigger system problem. | ||
| Flying_finnish |
I'm thinking bad fuel also. 3 months outside will surely put moisture in there. Sooo, change the fuel, put some Techron (or other additive like that) in there, change the fuel filter & spark plugs and give it a try. I wouldn't bother with O2 sensors etc. just yet, start with the easy stuff. | ||
| Nwrider |
Thanks for the tips guys... unfortunately I wont be able to touch her till this weekend. Rumor has it the weather is going to be decent so I should be able to get some saddle time after trying a few things. Two seasons... by stretching her legs I meant I flogged her on some back roads. I usually play between 3000 and 4500. Burps were random. Steady throttle, rolling on, rolling off.. Before my next ride I will charge my battery, check for codes, check all my connections, run some seafoam through her, check and maybe change the plugs. If that doesn't do it I will dig a little deeper. Has any one replaced the fuel filter with a smaller easier to hide inline filter? I debated a clear one but I don't think they are as good of a filter. Its would be nice to see what the fuel looks like. Thanks guys.. you are an invaluable resource and greatly appreciated. | ||
| Harleyelf |
Clear fuel filters are usually not made for pressurized fuel lines. Take your old filter to a good auto parts store and get a replacement made for a fuel injected vehicle. Spark plugs are easy to change; try that before digging deeper. | ||
| Nwrider |
I thought I had seen some with an inverted flare but I could be mistaken. If the threads are the same I know there is a Chevy filter about the diameter of a quarter and a couple inches long. That should be easy to tuck up behind the frame out of sight. Thanks again guys. The rain stopped, the roads are dry and I am stuck at my desk!  | ||
| Two_seasons |
You may want to know how much ETHANOL your gas supplier has in the fuel you buy from them. Cost about $10. Go to your favorite Outdoor Power Equipment dealer and order one. Some have them in stock. Valuable tool to have in the garage. Briggs offers one. Kohler offers one too. |
