This is quite a big job, as it means stripping dow quite a few parts before the headset bottom can be removed from the frame. Take plenty of reference photos, so that later, when re-building, you can see where everything goes.
At this point, you may want to do a drawing of the wiring to the block, although, it is probably not going to be much use. You will be having to replace the wiring loom, maybe the switch as well, so the chances are, some of the wiring colours will change because they are different on your new purchases and any reference drawings may only serve to confuse you when re-assembling.
Wiring this standard machine however, is very simply and I will illustrate how it is done, along with a diagram as we put the scooter back together.
Removal of the clutch lever is achieved by following exactly the same procedure as you used for the brake lever.
Once you have removed your bolts, the switch unit complete should pull away from the housing. Behind it and entering the back of the switch, you will find a loom of wires enclosed in a grey sheath that pass through the handle bar. In order to remove the switch, you need to withdraw the wiring as well. If it is too hard, try removing the two screws securing the throttle housing to see of that allows you a little more freedom.
These two bolts hold the throttle housing to the handlebar column on the headset bottom. You need to remove these to take off the housing. If your housing is in good order, it will need to be cleaned and polished to a shine finish for the project to look its best. The same applies to the housing on the clutch side.
The procedure above, for removing the gear change roller is almost identical to that for removing the throttle side. You will need to remove that also. I admit, that my throttle roller is a little hard to get at due to the throttle being seized with access to the bolt restricted. I'll be able to get at mine a little easier with the headset completely off.
Innocenti "I" Logo
The headset is now removed and stripped.