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FUEL SYSTEM - TC
Mixture adjusting
NOTE: If the mixture in both carburetters is correct ignore
the following instructions 9 to 11.
9.
Remove the piston dampers from both carburetters
or the damper from the carburetter that requires
adjustment.
10.
Insert the special jet adjusting tool and turn
it
clockwise to enrich or anti-clockwise to- weaken the
mixture and top-up dash pot and refit the damper.
11.
Repeat instructions 7 and 8 until the mixture is
correct.
12.
Top up the piston dash-pot and refit the damper.
NT2 741
Idle speed setting and balancing
13.
Using a synchro check meter against both carburetter
intakes in turn, adjust the fast idle screws to give an
r.p.m. of 800 to 850 whilst maintaining an identical
air flow reading from both carburetters.
14.
Stop the engine, check that the relay lever is against
its stop and insert a 3/32 in (2·4 mm) drill shank
between
the
tongue
and
the
slot
of the
interconnection lever - and whilst holding
it
in this
position tighten the interconnection spring coupling
nuts and bolts. Remove the-drill.
15.
Start the engine and increase the r.p.m. to 1500 and
check the balance with the synchro check meter and
if necessary adjust the idle screws to achieve an equal
reading.
16.
Recheck the balance at the correct idle speed.
Continued
19.15.02C Sheet 2
Trilimrh TRh Manu•• !'
Pilft
Nt\, 545277
h",ue
I
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