I am also be interested in tutorials on harness replacements, rebuilds, and troubleshooting. I bought an S2 for $1 USD (in incredible shape with low mileage). However, the former owner accidentally dunked it in the Potomac river (he lives on a houseboat. I removed & charged SCU via the micro USB (made some noise). I disassembled the S2 on a stand—water poured out. I didn’t see rust. I cleaned everything. I feel like the bike is salvageable but seek guidance troubleshooting. Thank you.