Indmar Marine Engines
6-13
IGNITION TIMING
All current production Indmar engines, except for
carbureted models, have non-adjustable ignition tim-
ing. On carbureted models, the ignition timing is care-
fully adjusted at the Indmar factory. Unless the distrib-
utor hold down clamp is loosened and the distributor
is turned, the engine is essentially “timed for life.” In
the event that the distributor has been moved, the tim-
ing procedure for a carbureted engine is as follows:
Carbureted Engines
1. Install P/N
801012 timing
shunt (plug with
looped white wire
and black wire
shipped with
each engine) into
the plug on the
distributor.
(Figure 6.9)
2. Start engine.
3. Connect the
loose end of the
black wire to 12 volts positive.
4. Adjust the idle to 750-850
RPM.
5. Set timing to 10 degrees
BTDC. (Figure 6.10)
6. Disconnect timing shunt
from 12 volts and remove
plug from distributor.
7. Reset idle to 750 RPM for
inboard engines and 1000
RPM for jet engines.
Altered or improperly set ignition timing can cause
severe engine damage, which is not covered under the
terms of your warranty.
FUEL SYSTEM
The fuel system consists of fuel lines, fuel pump, and an
unused fuel recovery system. Fuel in the system is
under pressure and must be relieved before servicing.
Because of the inherent danger of fuel leakage into the
bilge, do not attempt servicing or maintaining compo-
nents of the fuel system.
Your Indmar dealer has factory trained technicians and
U.S. Coast Guard approved marine grade parts required
for fuel systems.
INDM-B005
TIMING
SHUNT
TO 12 VOLTS +
Figure 6.9 – Timing Shunt
TIMING
NOTCH
INDM-B006
Figure 6.10 – Timing Notch
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