Adjusting idle speed – BMW K 1100 LT/RS User Manual

Page 123

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13.5

Adjusting idle speed

L

Note:

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

Remove knee pad.

Remove left side fairing.

Remove protective caps (1) at the vacuum con-
nections.

Connect connection hoses of the Synchrotester,
BMW No. 13 0 800, one after the other (note
hose markings 1-4 on tester housing).

Connect tester to vehicle with the corresponding
adapter lead.

Start engine and run at a standstill for app. 10
minutes if not already warm.

e

Caution:

Do not run for more than 20 minutes at a standstill.

Run the engine at idle speed.

Select “bar diagram” and maximum resolution.

L

Note:

If the differences between the individual columns
are too great (more than 2...5 mm
(0.07874...0.19685 in)), switch over to curve display
and compare the individual cylinders with each oth-
er; perform fault diagnosis procedure if necessary.

Repair any faults found.

e

Caution:

Throttle adjusting screw (2) is secured with lacquer
and must not be turned.

Adjust synchronisation and idle speed by turning
the air control screws until the bars/curves are at
the same height; adjust engine idle speed.

Idle speed

......................................... 950 ± 50 rpm

LT000280

2

1

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