I was out for a ride the other day and toward the end of the ride the bike seemed to loose power and bog down. It didn't want to rev past 4-5k almost felt like it was running on one cylinder but I don't think it was. There was also some minimal backfiring going on too and it wanted to stall at idle. Took it out again yesterday and after about 2 miles it started doing the same thing again. I don't think it's a carburetor problem but perhaps it's a clogged fuel tank vent. I tend to think its some type of electrical issue but am looking for some ideas from the wealth of knowledge here. BTW I'm running stock points. Thanks in advance.