Installation Manual
UL
POWER
UL390i UL390i
S
390i
SA
MI 390A01 Revision No: 3
Date:
2014-09-15
Page:
57
of
69
The provided copper clamps are used on one end of each lead and
screw into the ignition coil cover. Strip only a few millimetres of the
outer plastic of the ignition lead to unveil the inner core. It is advisable
to solder the copper clamp onto the lead for good contact. The ignition
lead is held and guided behind the point of soldering so no bending and
as a result cracking should occur on the soldering.
Push in the lead with the clamp all the way into the ignition coil cover
and then screw on the cover with a couple of turns. Make sure the lead
is fixed tightly and it cannot be pulled out by a small force.
The ignition coil cover clicks onto the ignition coil. Make sure you get
the correct leads going to the correct spark plugs.
The other side of the lead is screwed in the spark plug cover. Cut the lead to the requested length.
Do not strip the plastic, but screw the spark plug cover into it. Do not forget to first slide the rubber
sealing over the lead before attaching it to the spark plug cover. When attached pull back the
rubber to cover the joint and make it moisture proof.
Slide the bottom rubber over the spark plug cap and click the cap onto the corresponding spark
plug.
Each cylinder head has 2 spark plugs; each going to a different coil for redundancy.
Cylinder numbering is done from the propeller backwards. See numbering below.
