72
-
Seal the connection using a cap or a pipe
portion with conical a cap.
-
Connect the Mitivac vacuum pump to the
control pipe and to the SAS valve.
-
Start the vacuum pump up to a pressure of
-8.7 ÷ -11.6 psi (-0.6 ÷ -0.8 bar) so as to
close the valve and cut off the SAS system.
Remove the exhaust gas collection kit closing cap and connect the analyzer properly pre-
heated.
Check the conditions displayed by the analyzer and the engine rpm and adjust the
CO
value
to:
3.8±0.7 @ 1,650±50 rpm
Special equipment and tools:
Mityvac-like vacuum pump
020329Y
Digital tachometer
020332Y
Exhaust gas analyzer
494929Y
Note:
Check that the result is obtained with the gas valve in the closest position.
Also check that the carburetion adjustment is obtained with the flow screw open by 2 to 4
turns.
If not, check the fuel level adjustment in the basin and check the fuel circuit.
In case of unsteady CO, check the carburetor cleaning, the feeding system efficiency and
the vacuum seals.
In case of unburnt hydrocarbons (HC) > of 1,000 p.p.m., check the ignition system, the
timing, the valve clearance and the drainage valve seal.
Summary of Contents for GT 200
Page 1: ......
Page 90: ...90 9 1 2 Turn Signal Lights Horn Services and Accessory Pre Wiring ...
Page 151: ...151 10 10 Lubrication Circuit ...
