What Brand Gas you using?
Has anyone noticed difference in how the engine runs on gas from different stations?
Last week (wed) I fired up the my V-star 1300 after it had sat for about 1 month without running, full tank of 89 octane from Costco. For the first time in the year I have owned it, it ran weird at idle, stalled a bunch at low speeds and had trouble running in the lower RPM range. I did not have time to really diagnose it because I had 200 miles to go. At cruising speed around 70-80mph it felt great, but at lower speeds I had to keep it in a low gear to keep the revs up. I had a full tank, so I stopped about 110 miles in and filled up with Chevron 91 octane and added some injector cleaner, after about 30 or 40 miles the sputtering went away and was completely gone when I got to my destination. Had no issues at all on the way home and topped off with some chevron 89 octane. Took it to work again on Thursday (70-80 miles round trip) with no issues and did a small ride with the wife on Friday (30 miles...) with no issues.
My 2003 FZ-1 which is a bit more finicky had been giving me issues with starting, and always needed a while to warm up lest it stall randomly when cold, and then would run great once warmed up. I kept thinking it was carb issues so i would run cleaner in the tank once a month and the issue would clear up for a while. A Friend recommended I stop filling up with Costco and use Chevron and all my problems went away after a few tanks. I ride my FZ almost everyday for work so I put in 2-3 tanks per week. In the last few months I have had zero issues with starting and stalling, runs like a champ and does not need to warm up, just power her up and take the choke off and she is purring just fine. I only run Chevron 97 octane.
Anyone else noticed this? I still fill up my car and truck at Costco, because gas is still expensive here in California, even with all time barrel price lows gas is about $3.00 per gallon. My car and Truck never show any signs of running rough on the Costco stuff, but apparently the Bikes motors are more sensitive to variations in the quality of gasoline?
2007 VStar 1300 Touring (road trip/weekend bike)
2003 FZ-1 (daily commuter)