years ago, I asked a neighbor's kid to help me out, I basically lifted the seat up while he was sneaking his hand in the trunk looking for the key, after 5 minutes he got it. It wasn't a burgman but its almost the same trunk, you should try that before start dissembling.
Hi, I just did the same thing. Locked my keys like a dummy, inside the seat/trunk of my Burgman 150.
Here's how I got it opened:
1. Go to the back of the bike, unscrew the panel that's just above the license plate (sorry, I don't know any of the technical names, I'm a girl!). Take it off.
2. Peek inside to where the location of the lock of the seat should be. You'll see the locking mechanism and the wire that trips it. Follow the wire right to where it's no longer covered in plastic, and just to the right of it, there's a little red thingy on the wire. It's where it slides over to open the locking mechanism.
3. Butt your screwdriver just to the right of that, and push it towards the left.
IT OPENS RIGHT UP WITH VERY LITTLE PRESSURE!
Boy did this little trunk opening trick work today!
A couple buddies and I went out to breakfast, about 80 miles away. After we ate, my Burgman 650 riding friend figured out he had locked his keys in the trunk. He was already dreading the phone call to his wife to bring him the spare, when I suggested this fix. But I had never actually done it.
We popped the maintenance bay panel and the lock cable housing was easy to find; it's on top. Gave it a little tug and the trunk popped right open. Disaster avoided.
Thanks again BUSA members. You saved the day once more.
For anyone who has a 650, you should read this whole thread for just such emergencies.
Personally carry with me a spare which is a $4.00 Ilco cut exactly the same as the Suzuki OEM key, it will do everything except close or open the lock shutter, so never nervous or upset if accidently lock keys under seat.
If you want to hide a key. Tape it to back of license plate it is covered and easy to get to if the need arrises. Don't use a hide a key its to thick and may fall of, best is clean area with alcohol let it dry and use a piece of DUCK tape to attach to back of license plate.
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