Brakes; Secondary Air; Carburettor - PIAGGIO MSS ZIP 100 4T Service Manual

Characteristics

Brakes

Specification
Front brake
Rear brake

Secondary air

•
The SAS (Secondary air housing) op-
erating principle for 50 4T engines is
similar to that for 50 2T engines; the
only difference lies in how air is sucked
in the external and the external side of
the transmission compartment.
•
Air is taken in along tube «A» (to the
cylinder side) and, after been cleaned
through the filter «B», gets into the reed
valve «C» to be directed towards the
head through a flexible pipe and then a
rigid one «D» flanged to the head. In
this way, the air reaches the discharge
pipe to increase the amount of oxygen
in the unburned gases before the cat-
alytic converter, thus helping a better
reaction of this device.

Carburettor

Specification
Throttle valve diameter
Diffuser diameter
Body stamping
Maximum jet
Tapered pin stamping
Minimum jet
Starter nozzle
Starter nozzle code
Notches from the top
Gasoline inlet hole
Starter piston protrusion
CHAR - 10
BRAKES
K
EHIN
Code
Type
Desc./Quantity
Disc brake (Ø 175 mm) with hydraulic control (lever on the
handlebar right end).
Ø 110 mm drum brake with mechanically controlled expansion
shoes (lever on the handlebar left end)
C
ARBURETTOR
Desc./Quantity
the rod has no notches
11 mm at 24°C
MSS ZIP 100 4T
CVK 20
Ø 20.5 mm
Ø 19 mm
ADA
75
4REEG
35
45
vacuum
6ZC
Ø 1.6 mm