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Alright, here is the situation. The bike is a 1980 550L. I bought it last year and went through the carbs (complete rebuild i.e. dunking and new o-rings in carbs and intake boots along with new intake boots themselves). I then looked at the electrical and put on a used r/r because the wires from the previous one were fried. I soldered the new wires directly to the stator and added an extra ground wire from it to the - battery post. Although I never synched the carbs, or adjusted the valves as I should have, the bike seemed to run great for the most part. A little hesistation close to 5000 rpm but nothing severe. I put on probably around 2k miles or more with nothing wrong at all.
Around October, this past year, I was finishing up a 150 mile ride and was getting on the freeway when all of a sudden I couldn't go above 6000 rpm anymore and the bike seemed to start losing power (i.e. no amount of throttle would pull the rpm's back up). As I was pulling onto the shoulder I stopped and blipped the throttle a couple times and all of sudden it seemed the power was back. I rev'ed it up to 5000 rpm a couple times and it seemed fine so I pulled back out. The power seemed definitely adequate in 1st, 2nd, and somewhat in 3rd never above 6000 though. Now 4th, 5th, and 6th were different stories in 4th and 5th it might have fluttered a little over 6000 but it seemed to sputter and then once in 6th it would go nowhere above 6000 and the whole bike losing power scenario would happen again if I kept it at 6000 for too long.
What's weird is I tried starting it one morning after that and the battery was dead. I charged it overnight and the whole going up to 6k rpm thing happed all over again within the first 5 minutes of riding this time. I charged the battery full last night and got out the multimeter...battery was at 12.9v with the ignition off. A little over 13 with it at idle and 14.08 at 2500 and 14.05 at 5000. According to the stator papers the charging system is fine and I didn't have any need to proceed to Test B or C. When I would turn on the headlight at idle the volts would start dropping and then when I turned them off they went right back up to normal showing that everything was charging.
All advice and or thoughts would be greatly appreciated? Maybe the coils are on the way out...possibly resistance at their connections? Maybe bad R/R?
PS: I remember a couple of times out riding when I would stop and then try to start the bike I would have to turn the headlight on and off before I started or else the solenoid would just click. Kinda strange in itself.
Around October, this past year, I was finishing up a 150 mile ride and was getting on the freeway when all of a sudden I couldn't go above 6000 rpm anymore and the bike seemed to start losing power (i.e. no amount of throttle would pull the rpm's back up). As I was pulling onto the shoulder I stopped and blipped the throttle a couple times and all of sudden it seemed the power was back. I rev'ed it up to 5000 rpm a couple times and it seemed fine so I pulled back out. The power seemed definitely adequate in 1st, 2nd, and somewhat in 3rd never above 6000 though. Now 4th, 5th, and 6th were different stories in 4th and 5th it might have fluttered a little over 6000 but it seemed to sputter and then once in 6th it would go nowhere above 6000 and the whole bike losing power scenario would happen again if I kept it at 6000 for too long.
What's weird is I tried starting it one morning after that and the battery was dead. I charged it overnight and the whole going up to 6k rpm thing happed all over again within the first 5 minutes of riding this time. I charged the battery full last night and got out the multimeter...battery was at 12.9v with the ignition off. A little over 13 with it at idle and 14.08 at 2500 and 14.05 at 5000. According to the stator papers the charging system is fine and I didn't have any need to proceed to Test B or C. When I would turn on the headlight at idle the volts would start dropping and then when I turned them off they went right back up to normal showing that everything was charging.
All advice and or thoughts would be greatly appreciated? Maybe the coils are on the way out...possibly resistance at their connections? Maybe bad R/R?
PS: I remember a couple of times out riding when I would stop and then try to start the bike I would have to turn the headlight on and off before I started or else the solenoid would just click. Kinda strange in itself.
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