Join Date: Jun 2018
Location: Sumter, SC
Model: Goldwing GL1500 Aspencade
Bike is all back together and wiped down. This is day one after yesterday's soaking with B12 Chemtool fuel treatment. I put about 1/3 can directly into the carbs and ran the engine until it started smoking really bad. Huh? Word of advice...where a mask if you have one. The fumes from B12 are very toxic and can indeed cause you to pass out. I got light headed. My stupid fault as I forgot B12 uses Toluene as one of its cleaning agents, and it is toxic.
Ran the bike for about 40 miles and it got better over time. While the jerking did not totally vanish, it happens much lesser, and my acceleration is a lot stronger now. The bike will actually spin the rear tires on hard takeoff if you're not careful. No, she's not a race bike, but I'm not used to having that kind of low-end torque on a GL1500; at least not from mine. I also noticed my fuel mileage getting better. On average, she only got about 28mpg to 32mpg, which kind of sucked if you ask me. I haven't filled the tank again as I'm down to a half-tank of fuel. So I will let you know if she improves more. I will continue using B12 Chemtool.
Lastly, the jerking has reduced to a flutter. So instead of the bike jerking really bad, it flutters and makes a brrrr sound when you accelerate hard and low RPM. Some of this I presume is the difficulty in burning the fuel additive as it tends to want to stall the bike. I still have more than a half-can left so I will continue using the treatment until the entire can is gone. If this doesn't work, and a bleed down test fails, then I guess I will be yanking those beautiful heads.