Hey all. I was riding my '02 saturday evening at low speed through the city. I had noted to myself at one point, without looking at the tach, that the famous 4500rpm stumble had seemed to really be acting worse on that particular ride. But, that stumble which many of us know about doesnt bug me too much anymore, now that I know that its "normal" for an '02 and others. But, just after noticing this, I got to the next stop light and noticed the bike idling at an indicated 800 rpm's or so.....much too low. After keeping the idle up with the throttle and beginning to take off slowly again, it started to stumble and hesistate at other rpms as well, in almost the same way as the characteristic 4500 hesitation. Very light throttle, just barely accelerating, and mainly at lower rpms. It started acting up to the point where I was now making preparations to pull over and call for a ride, since I figured it would just keep getting worse and die out.
By this time I was now heading south out of OshKosh and getting onto country roads, so the speeds were higher. I didnt notice it nearly as much, although something still didnt feel quite right but i couldnt put my finger on what. Possibly the initial throttle response seemed a bit off, or I couldve just been evaluating everything too much at this point. I decided to just keep going to Fondulac, which would bring me down to city speeds again, and then i could evaluate it again. When there at a rest stop, i tried riding around slowly to induce the problem myself, and still i could get the bike to slightly run poorly and jerk upon very light throttle. I was kind of hoping an FI light would come on, or even just die out to make diagnosing easier. But, neither ever happened. I filled up with fresh fuel from Shell as I was down to about 1/4 tank, and I rode the remaining 50 miles home on the freeway, and everything seemed ok, although at higher speeds it hadnt been acting up as much.
I got back home here, and within a few blocks of here where i was down to city speeds again, i caught it stumble once quick and that was it. I havent had the chance to ride it since, but plan to soon.
Any ideas or other instances like this one?
And btw, this past winter I replaced the fuel tank due to last august's high side. while it was apart I replaced the fuel filter, and the pump was changed over from my last tank. Maintenance is totally up to date including fresh OEM plugs, newer air filter, starter valve sync a month ago, etc. The only thing that has been neglected is the valve adjustment. The bike currently has 40,500 miles. And the wiring harness recall had been performed in spring.
By this time I was now heading south out of OshKosh and getting onto country roads, so the speeds were higher. I didnt notice it nearly as much, although something still didnt feel quite right but i couldnt put my finger on what. Possibly the initial throttle response seemed a bit off, or I couldve just been evaluating everything too much at this point. I decided to just keep going to Fondulac, which would bring me down to city speeds again, and then i could evaluate it again. When there at a rest stop, i tried riding around slowly to induce the problem myself, and still i could get the bike to slightly run poorly and jerk upon very light throttle. I was kind of hoping an FI light would come on, or even just die out to make diagnosing easier. But, neither ever happened. I filled up with fresh fuel from Shell as I was down to about 1/4 tank, and I rode the remaining 50 miles home on the freeway, and everything seemed ok, although at higher speeds it hadnt been acting up as much.
I got back home here, and within a few blocks of here where i was down to city speeds again, i caught it stumble once quick and that was it. I havent had the chance to ride it since, but plan to soon.
Any ideas or other instances like this one?
And btw, this past winter I replaced the fuel tank due to last august's high side. while it was apart I replaced the fuel filter, and the pump was changed over from my last tank. Maintenance is totally up to date including fresh OEM plugs, newer air filter, starter valve sync a month ago, etc. The only thing that has been neglected is the valve adjustment. The bike currently has 40,500 miles. And the wiring harness recall had been performed in spring.