Installation Manual
UL
POWER
UL350i UL350i
F
UL350i
S
UL 350i
HPS
350i
SA
MI 350A01 Revision No: 7
Date:
2014-09-15
Page:
45
of
60
ULPower advise to use “positive lock” connectors for all electrical connections to ensure that
connection not become loose because of vibrations.
Make sure ECU and Ignition switches are of adequate quality and are designed for at least 15 Amp
DC current. The reason for this is that DC current tends to create a spark each time you switch,
which deteriorates the contact points and can cause cheap/low quality switches to fail in time.
Mount the ECU unit in a place where temperatures do not reach over 65°C (preferably on the cabin
side of the firewall). Take great care when putting the wiring loom through the firewall not to
damage the wiring. Use rubber around the hole and the wiring loom to protect it when installed.
Also take care that no water can come into the connector along the wiring loom. The picture below
shows the acceptable (A) and not acceptable (NA) installation of the ECU box and wiring loom.
A
NA
A
A
NA
Mount the Ignition coils on the firewall or the engine mount (on a flat surface). We advise not to
mount them right beside the ECU to avoid any possible electrical disturbance. Also don’t mount
them on a place where vibrations are generated, this leads to loose contacts inside the coil. The
distance between ignition coils and ECU must be at least 100 mm. Also the distance between each
of the eight cables and the ECU must be at least 100 mm. Do not mount the plastic back side of the
coils straight on the firewall, but leave a small gap by using the brackets (see picture) witch are
provided with the coils. Do not exaggerate tightening the 3 bolts holding down the ignition coils in
order not to internally distort/twist the units causing possible failure.
Summary of Contents for UL35Oi
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