Hello,
There are 2 things to look for that are likely trouble spots.
1) There is a small wiring connector on the front side of the clutch handle bracket.
If you have added bar backs/bar risers, that can add undue strain on the little connector, causing it to not make good contact.
If you recently ...

I have done my own maintenance on every bike I have ever owned. A valve check on a Boxer is pretty easy. The newer ones are getting a little crazy with the need for special tools,. :o


The newer ones only need feeler gauges, a micrometer, a low range torque wrench and some basic hand tools for ...

There’s a LOT to comment on here…
1. The 2018 WetHead has an integrated transmission with the crankcase and shares the engine oil for lubrication.
2. The plug on the left side of the engine is the 8mm hex cover used to access the TDC slot on the rotor of the alternator.
3. The plug you describe ...

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Looks like a solution.