UAZ 2001 ???-3741, Инструкция по эксплуатации

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After restoring the contactless ignition system (replacing of
the magnetic pulse distributor or transistor switch), restore the
previous connections of the carburettor.
Maintenance of the system consists in setting the ignition
timing, regularly cleaning the rotor and cover of the magnetic
pulse distributor, high-voltage part of the ignition coil and spark
plugs, in timely lubricating the magnetic pulse distributor and
checking spark gap.
Check spark plug gap with a feeler gauge (Fig. 37). The gap
should be equal to 0.8
+0.15
mm. Adjust the gap by bending the
side electrode.
Fig. 37. Checking spark gap:
à -gap
For setting the ignition timing, proceed as follows:
1. Set the piston of No. 1 cylinder at the TDC on the
compression stroke until the timing hole on the crankshaft
pulley gets in register with the timing pointer on the timing gear
cover.
2. Remove the cap from the magnetic pickup.
3. Make sure that the contact segment of the runner is set
against the cap terminal marked with numeral "1".
4. Loosen the bolt with the indicator, clamp the octane
selector plate to the drive body so that the indicator is in register
with the middle division mark of the octane selector scales, and
tighten the bolt.
5. Loosen the bolt securing the octane selector plate to the
magnetic pickup and distributor unit body (Fig. 38).
6. Holding the runner and forcing it clockwise (to take up the
backlash in the drive), carefully turn the distributor body until