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If you want to find the real problem, wait until a very dark, cloudy or moonless night. Turn all the lights off. Pull the fuse for your headlight, so it won't turn on. Then start the bike. Run it up to around 2,000 RPM or so, so that you have good, strong sparks going on the plugs.
While holding it at 2,000 RPM, gently start spraying the plug boots and wires with a mist of water from a spray bottle. When things get wet enough that you start losing cylinders, you should be able to see blue sparks, which will identify exactly where your problem is occurring.
If you want to find the real problem, wait until a very dark, cloudy or moonless night. Turn all the lights off. Pull the fuse for your headlight, so it won't turn on. Then start the bike. Run it up to around 2,000 RPM or so, so that you have good, strong sparks going on the plugs.
While holding it at 2,000 RPM, gently start spraying the plug boots and wires with a mist of water from a spray bottle. When things get wet enough that you start losing cylinders, you should be able to see blue sparks, which will identify exactly where your problem is occurring.
