Discussion Starter · #1 ·
On two different rides I experience a sudden roughness and a loss of power. At 65 mph the bike suddenly felt like I was running at 50 mph in 5th gear. Kind of like lugging at too low rpm per mph. This happened after riding for approximately 1 and a 1/2 hrs with a big change in altitude and temperature. Not once but twice on two different rides. And it wasn't my imagination because the 2nd time it happened I tested it by trying to see how fast I could hit 120 mph as I have done before. It seamed to take much more time and barely got to 110 and wouldn't go any faster. And before it hit 120 it a blink of your eye and had more to spare. So I know there was a difference. And after I park it for a bit and run it again it was fine. But have not had a chance to do anther hr or more ride yet with altitude changes like that. Thinking maybe a fuel mixture censer not working right. Or maybe bad gas? Any one have any ideas?