Yamaha RD400 - Page 6

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MODIFICATION
IELECTRTCAL
SECT|ONI
1.
Modification
of lgnition
system
Battery
lgnitio
2.
lgnition
coil 2 coils-
1 coil
3,
Voltage
regulator
and rectifire
Separate
type
..------
lntegrated
type
C.D.l.
lgnition
timing adjustment
procedures.
C.D.l. lgnition
1.
lnstall dialgauge
to left side spark
plug
hole.
2.
Rotate crankshaft
countrclockwise
up
to T.D.C. and slowly turn it clockwise
until
dialgauge
indicates
the specified
spark advance
position.
R D250
BTDC
2.00
l-
0.1
5 mm
R D400
BTDC
2.30
1
0.1 5 mm
3.
At this time,
adjust
magneto
base
using screw
driver
until both marks
(lF,
l) become alignment.
REMARKS
Better engine
performance
Not interchangeable
Due to use of
CDI
Prevention of
plug
from
coming off
4.
Spark
plug
cap
with rubber
ring.
Screw driver
lry
Rubber
ring