Suzuki outboard motors 1988 2003 repair manual., Page 37Get this manual
MAINTENANCE 3-21 IGNITION TIMING
ISee Figures 59, 60, 61, and 3
The DT9 and DT15 are equipped with single ignition coil for both cylinders and uses mechanical advance system that changes the ignition timing by interlocking the stator to the carburetor opening The CDI unit and the ignition coil are integrated to make the size compact and maintenance easier The stator is made up of the ignition coil and 12v 80w battery charge coil mounted on the aluminum base plate The flywheel is constructed of cast iron and incorporates tetra-pole Thi electric start model has ring gear attached to the outer edge while the manual start model does notThe flywheel has engraved lines marked in 2Oincrements from 4OATDC to 2OBTDC and engraved lines marked in "increments from 17OBTDC to 27OBTDCThese marks are used in conjunction with timing light to inspect and adjust the ignition timingThe static ignition timing adjustment is performed as follows: With the engine shut down, fully close the throttleContact the projection end surface of the magneto stator retainer to the inner side surface of the throttle camThus adjust the setting marks of both parts so that they align with each otherLoosen the two cam set-screws and move the cam so that the stator-side and cam-side setting marks align On the DT9.9 make sure to tighten the cam stopper screw after adjustingThe maximum retard timing is O0-4OATDC at 650 rpmMaximum advance timing is 16.5°-20.50BTD at 5000 rpm for the DT9.9 and 23O-27OBTDC at 5000 rpm for the DT15Dynamic ignition timing adjustment: Start and warm up the engine for about minutesShift the clutch to neutral and keep the engine speed to 650 rpmIgnition timing is indicated by the timing arrow attached to the side of the recoil starter pointing at any of the lines engraved on the outer surface of the flywheelUsing timing light, make sure the timing arrow remains within range of Oo-4OATDC at 650 rpmIf not, the timing must be adjusted to align the tirning marksIDLE SPEED ISee Figures and 5