The latch is held tight by the seat and your effort isn't enough to release it yourself. Try pushing or hitting down with a closed fist on the rear of the seat as you turn the key. Once you have it open lubricate the trunk latch, maybe with some graphite lubricant.
It's also possible that you've got some slack int the cable that connects the ignition stalk with the seat latch. You might have your dealer service center check this for you.
I followed instructions, found elsewhere in the forum, to install a hidden release cable on both of our 650s. They work great! They make it possible to open the trunk if it gets stuck, as in too much stuff pushing up on the seat, as well as when you don't have your key handy.
The only thing I modified is that I used a piece of shrink tubing to cushion the loop. It is much gentler on my delicate pinkies
I used to have quite a bit of trouble with my '03 650 seat not wanting to unlatch all the time, so I resorted to the "hit the seat with your fist" method (which always worked). I tried lubricating the latch, but to no avail.
Now since my ignition module has been replaced a few weeks ago under the new recall order, the seat always unlatches properly. Go figure! :shock:
Two problems fixed at one time. Thank you Suzuki! 8)
If you disassemble the rear pillion assembly you might find that your opener cable is snagged or otherwise pressured such that the cable inside doesn't slide freely. I ran into this when I took the rear pillion stuff apart and reassembled and inadvertently pinched the latch release cable. Adjusting its path made it work slicker than a slimy doorknob.
I have found the tension the seat has on the latch makes me not care much for putting undo pressure on my key. For that reason (as well as if having a helmet or other item(s) pushing up on the seat) I 'gently' but firmly (versus 'hitting with a closed fist') push down on the rearmost portion of the seat and the seatlatch release is much easier (for me).
A forum community dedicated to Suzuki Burgman motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all 200, 400, and 650 models!