45
EXHAUST EMISSION CONTROL
In accordance with the Central Motor Vehicle Rules,
LML range of scooters manufactured by LML Lim-
ited meet emission standards prior to despatch from
factory.
Normally simple carburettor adjustment will help to
control CO level in exhaust gases. However, it is
necessary to check Carbon Monoxide (CO) level in
exhaust gases.
Following are some tips to control CO level in ex-
haust gases:
1. Use only recommended spark plug.
2. Clean the air filter and replace if required.
3. Clean and adjust carburettor properly.
Adjust the air mixture screw to ½ to 1½ threads
anti-clockwise from fully to closed position and
thereafter set idling screw 1000 to 1300 RPM.
4. Check the compression pressure and ensure
that it is within limits. Check ignition timing and
reset as recommended.
5. Check and adjust spark plug gap.
