User Manual

GS R/C
DLA ENGINE OPERATING-INSTRUCTION
MANUAL
08/20/2014 Copyrighted Material
Owner’s Manual All Rights Reserved 03180-10000
Page - 24 DLA 32, 58, 64, 116, 116-I2 & 128cc Rev. A.05.01
Engine Disp.
Timing before TDC
1
st
Cylinder of Bank
2
nd
Cylinder or Bank
32cc
28 - 32
O
(30
O
Typ)
58cc
28 - 32
O
(30
O
Typ)
64cc
28 - 32
O
(30
O
Typ)
116cc Twin
28 - 32
O
(30
O
Typ)
116cc IL
30
O
Typ
28-29
O
128cc QUAD
30
O
Typ
28-29
O
Note: Increasing the angle is said to be “Advancing” the time and decreasing the angle is said to
be “Retarding” the timing.
.
With the In-Line and the QUAD engines, it is often advisable to set the 2
nd
cylinder (rear) or 2
nd
cylinder bank, 1-3
O
retarded with respect to the 1
st
cylinder/bank. This is done to help keep the 2
nd
cylinder/bank cool, as these cylinders are in the “hot-air shadow” of the front cylinder/bank.
Special consideration for cooling the 2
nd
cylinder/bank (rear) should always be addressed. (See
Cowl Ducting and Air Flow below.)
116-I2 and the 128cc QUAD: CONNECTING THE TWO (2), CDIs TO THE PROPER SENSOR
The 116-I2 In-line and the 128cc QUAD have two (2) sensors and two (2) ignitions to drive the
front and rear cylinders separately. The paired combinations of one each sensor and one ignition
is dedicated specifically to the front or rear cylinder bank(s). Therefore, you must connect the
front cylinder’(s) sensor/ignition to the front cylinder(s) and the rear sensor/ignition to the rear
cylinder(s). The 116-I2 and 128cc sensors are typically mark with an “F” or “R” to denote which
sensor goes with the designated cylinder(s) bank (front or rear). See pictures below.
If the crankcase should not be marked with an “F” or “R”, then refer to the pictures for the correct
sensor identification. Another way to identify the front sensor is to rotate the crankshaft so that
the front cylinder-piston is at top-dead-center (TDC
f
). Note the location of the timing magnet on
the prop-hub. The magnet will be located just CCW from the front sensor. The magnet will be
~28-30
O
CCW relative to the front sensor.