Suzuki 8-25HP outboard motors Service Manual, Page 4Get this manual
Suzuki DT8CDT9.9C merse lower unit in water, connect suitable power timing light, start engine and wann-up to normal operating temperatureRefer to FigSZ7-9 for view of timing marks and pointerIgnition timing at 600 rpm should be 9-13 degrees ATDC on Model D'IBC and 10-14 degrees ATDC on Model D'f9.9C'Ibtal timing advance at 2000 rpm or over should be 1620 degrees BTDC on Model D'IBC and 26-30 degrees BTDC on Model D'f9.9CTROUBLE-SHOOTINGIf ignition malfunction occurs, use only approved procedures to prevent damage to ignition componentsCheck spark plugs, wiring and wiring connectionsUse Stevens Model CD-77 peak voltage tester or Suzuki Pocket Tester 0990025002 to test ignition components and circuitsA suitable ohmmeter may be substituted for Suzuki Pocket Tester 09900-25002'Ib test ignition system using Stevens Model CD-77 tester, remove spark plugs and crank engine using manual starterRefer to chart in FigSZ7-10 for tester lead connections, test values and related remarksTest ignition system components using Suzuki Pocket Tester 09900-25002 or suitable equivalent ohmmeterRefer to FigsSZ7-8 and SZ7-1lNOTE: The following Ignition system resistance specifications ani based on an ambient temperature of 20 (68 F)