Linhai HY740STL 2018, Service Manual

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CHAPTER 3 ENGINE
M750L SERVICE MANUAL 18.0
CHAPTER 3 ENGINE PAGE 3-
92
3.18.7.3 Technical Parameters
Input voltage: 9~14VDC
Output voltage: ~25~30KV
Operating temperature: -30 ~110 °C
Storage temperature: -40~155°C
Mounting Torque: 8.8~11.8Nm
3.18.7.4 Installation requirements
The vehicle frame provides the mounting surface and mounting holes.
Mount coil close to the spark plug and keep the plug wire length very short (less
than 6 “).
Mount coil away from any pick coil device. Especially, a VR type Crank / Cam
sensor. Keep a Min distance of 150 mm (around 6”) between coil and any VR
sensor device.
Never route the coil C- wire with the same bundle as the Crank sensor wires.
There is around 200 V peak potential between C- wire and engine ground. This
voltage potential could cause a noise on sensor cables.
3.18.7.5 DOs a nd DONTs
ACTION REASON
DO NOT : Install the low voltage connectors with
the power applied
This might cause an unwanted secondary firing,
possibly leading to personal injury
DO NOT : Use a screw driver to asset in removing
secondary boots from the secondary tower. Use
tools designed for secondary removal.
It is possible to damage a secondary lead in such a
manner that creates an electrical path to outside the
system permitting improper system operation misfire,
or even possible personal injury if arcing occurs.
DO NOT : Use parts that have been dropped or
display physical damage
Damaged components can lead to premature failure.
DO NOT : Scratch or apply any non approved
material to the surface of the high voltage tower
which mates with the high voltage secondary
leads.
This can jeopardize the seal integrity of the mating
surfaces which in turn can create a secondary high
voltage leak path.
DO NOT : Strike any part of the ignition system with
a tool or other object.
This can lead to physical damage which can cause a
system malfunction or failure.
DO NOT : Permit paint or other sprayed materials
to
be sprayed onto the electrical connectors.
Insulating type sprays can create a high resistance or
open connection. And, a conductive type spray can
create an electrical short condition.
DO NOT : Support the ignition system by the wiring
harness or plug wire.
These leads are not designed to support the weight
of
the ignition system. It can create a poor electrical
connection Or become disconnected allowing the