LOL You guys are a riot! No "jerking" on my GL1500, figuratively speaking.
I mean, I love my bike for sure, but not enough to "please" myself. I suppose I could set the cruise on, and that'll free up a hand.
The jerking happens below 2,000 RPM as it is trying to accelerate. I too am convinced that this a ignition/power issue and the plugs are probably not getting enough spark, either from a cracked coil, bad wire(s), or possibly a power source issue. I'll check all of that once I am done with the 1986 restoration. She runs anyways...just have to not accelerate so hard (1/2 throttle) under 2,000 RPM.
As for the seldom difficulty starting, as I indicated earlier, the problem happens after shut down and the bike has been sitting for about 20 minutes. I can smell fuel on the engine, and I believe the left carburetor is leaking fuel into the intake manifold because of a failed float needle. If you all recall, I mistakenly set the floats to 7mm, when they were supposed to be set to 8mm. I never corrected that yet, but that's coming before the Spring. I want to remove the carbs, replace the float needs and set them to 8mm, and while the carbs are off, I'll remove the coils (not sure how that's done on the GL1500; I do not have a manual for that bike), and check all of the wires, caps, and the coils. Hell since they will be off, I might as well replace them.
Any suggestions on a good aftermarket coil for the GL1500? I was unable to find one on EBAY except for a 1989 model. I'm not sure if the coils on an 1989 GL1500 are the same as the 1997 GL1500. And what about plugs wires? Any recommendations?