Checking idle speed, synchronising and co value an, Inspections i, ii, iii, iv, Adjusting idle speed – BMW K 1100 LT/RS User Manual

Page 33: Inspections i, ii, iii, iv adjusting idle speed

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Checking idle speed, synchronising
and CO value and adjusting if nec-
essary

Inspections I, II, III, IV

L

Note:

The basic settings (ignition, valve clearance) must
be correct.

Adjusting idle speed

Remove knee pad.

Remove left side section of fairing.

Remove caps (1) at the vacuum connections.

Connect hoses of the synchrotester,
BMW No. 13 0 800, in the specified order (note
markings 1 - 4 on tester housing).

Connect tester to motocycle’s power socket with
the corresponding adapter lead.

Start engine and allow to run for app.10 minutes
if not already warm.

e

Caution:

Max. idling time at a standstill = 20 minutes.

Run the engine at idle speed.

Select “bar diagram” display with maximum
resolution.

L

Note:

If the differences between the individual bars (col-
umns) is very large (more than 2 - 5 mm) switch over
to curve display and compare the individual cylin-
ders with each other; perform defect diagnosis if
necessary.

Rectify defects.

e

Caution:

The throttle butterfly adjusting screws (2) are sealed
with lacquer and must not be turned.

Adjust synchronisation at idle speed by turning
the air control screws (3) until the bars/curves are
at the same height, then adjust idle speed.

Idle speed........................................... 950 ± 50 rpm

LT000280

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1

2

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