Adjusting the rear shock (6th Gen)...no tool included?

So, I went to go and adjust the rear shock of my 07 and I was told by the previous owner that the tool under the seat (with the extension handle) was the tool for the job. This is either not the case or I have no idea how to use it. I have seen people talk about other tools they have gotten to get this job done, but do you think it would be easier just to go to the Honda dealership and have them do it? I feel like I will pay the same for them to do it once as I will to buy the tool I will be able to change it on my own in the future with.

Any suggestions on other tools or other safe methods to accomplish it would be great. The manual makes it look like the arm is jamming a screw driver in between the notches on the shock, but there's no way I am going to do that...

 

From other posts, I realize that the tool is most likely for chain adjustments, not for the shock (although it seems like this tool would be perfect for shock adjusting if it actually fit the teeth in the grooves). If it matters, there are two teeth on the tool that was in the bag...one on the end and one about an inch or so in on the curve...just a bit too big or too small to fit in the shock grooves...

 

Motion Pro shock wrench is about $20... Worth it cause you will use it more than once and it works on several different types of shocks... Tool in bag is for chain adjustment... Haven't used it for the shock but it looks like it would work. The fitment of the tool on the shock is not very good and it takes some patience to get it lined up on the shock (careful with the paint on the subframe).... Be sure to put the bike on the centerstand before trying to adjust the spring.

 

you should have two of the curved tools that fit into the same handle, one is for the chain adjustment and the other is for the shock. If the bike has ABS you also have a knob on the side for rebound adjustment.

 

My 2008 only came with the single tool the OP mentioned. No shock tool although I did spend a long time trying to make the chain adjustment tool work on the shock. I bought one off ebay.

 

The Honda tool is SUPPOSED to work, according to the Owners Manual, but mine absolutely would not. Even my universal adjusting tool was a real PITA. It helps if you spray a little lube on the adjustment collar and cams and have the bike on the centerstand to unload the spring.