easiest way to adjust rear suspension ?

[Enceladus]

been trying for 15 mins or so to move the rear suspension on my fzs600 but i can't get it to budge.
been hanging off the "spanner" like a monkey and it won't move.
is there an easy way please ?
at the moment it is on the 3rd groove from the tallest end and i want to move it down a notch or two.
thanks

[His Dudeness]

how crusty is the shock? do you have the right tool? you could try a liberal dose of wd40 and a pipe over the spanner to give a bit more leverage

[Enceladus]

shock and "collar" (don't know the right term) look v clean and shiny.
using the tool in the tool kit
have given it a squirt of grease, but still no joy.
best on centre stand or side stand ?
thanks

[Skippernick]

Have you put the extension bar on the c spanner that comes in the tool kit, it is quite stiff!

[Enceladus]

Have you put the extension bar on the c spanner that comes in the tool kit, it is quite stiff!

hadn't thought of that ! 
will give it a go 

[darrsi]

You need a bigger monkey 

[Enceladus]

You need a bigger monkey 

lol ! 

[Fuzzy]

shock and "collar" (don't know the right term) look v clean and shiny.
using the tool in the tool kit
have given it a squirt of grease, but still no joy.
best on centre stand or side stand ?
thanks

Best on centrestand and it's a hell of a lot easier with the handle attached to the spanner!