Yeah, really easy. Pop the right hand side cover off, remove the battery, and it's the thing in the little circular plastic sleeve just between the battery holder and the rear wheel. That's partly how it gets wet so easy - nothing shielding it from spray from the rear wheel, and that stupid little plastic holder just traps the water on there. Disconnect it, dry the holder, connect the new solenoid, improvise a rain cover if you want (but remember to put drain holes in the bottom of it!), then stick the battery back in. Ridiculously easy stuff.