Hi. My first time on a 2013 Suzuki Boulevard C90. Everything good until I went into my house and left the switch open. Now I'm trying to locate the battery to jump start it but cannot find the location. Any clues?
The 2103 C90 is indeed under the seat. I might suggest your try this first...your bike comes with a battery tender pigtail - should be on the left wide of the bike (as you sit o the bike) - under that side cover. Just pull the cover a little, plug in the pigtail to a tender and let it charge.
Also, it might be that some dealers zip tie it to the left passenger foot peg - so, look there too.