Hey guys.
I just got back from an awfully shortened after-dark ride thanks to mechanical glitches. I noticed something strange when I cold-started the bike with the choke pulled in: it kept turning off unless I used the throttle to keep the RPMs above 1000. It stalled when I rapidly downshifted downhill at a pothole, then again at a speedbreaker in similar fashion. It also turned off at signals a few seconds after I eased the throttle.
I then felt a very jerky and pulsing fuel delivery for a little distance. I tried adjusting the idling screw but got awfully inconsistent results - it would either not do a thing, or make the RPMs go haywire. I'd rev to 5000 and let it drop, and the results were varied each time I adjusted the screw - sometimes the RPMs would drop right back to <1000 on idling, or stay at 3000+ for way longer than it should, or even drop to 1500 and then slowly increase to 3000+ by itself until I intervened by hastily turning the screw clock-wise to drop the RPMs again.
I spent some time with the manual under a steetlamp, then increased the play on the throttle fearing that's the problem. Doing that improved the consistency of the idling screw adjustments, but the problem was far from solved. At the next signal, when standstill, the RPMs started going up by themselves again - I quelled them using the screw.
The ride back home was very pleasant with no sudden increase or RPM. THe pulsing wasn't as evident anymore. But during the last stretch (I might have imagined this), I heard a minor sound each time I added some throttle input. Maybe I was just paranoid by this time and was looking for signs of things that might be wrong, or maybe the new sound did start when I started noticing it.
Whatever the case, the bike is back in the garage. It appears to be a minor issue. I've planned a visit to the SVC or my mech early tomorrow. I'll post an update on how things go from there.







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