With these new digital power packs, you disconnect the port temperature switch/sensor leads and use a jumper wire to short the tan temperature sensor wire to engine ground. This allows the timing to be set using a timing light, remote starter, spark gap tester, piston stop tool and a jumper wire. CDI Electronics has the spark plug wires available as a set P/N: 931-4921.Ī breakthrough at CDI Electronics has allowed the use of microprocessor digital control circuits to handle the timing, QuikStart, S.L.O.W., rev limiter and data logging inside the power pack. Use of other spark plugs or wires can cause problems inside the power pack from RFI and MFI noise. Secondly, the spark plugs should be the factory recommended QL78YC. First, the spark plug wires need to be the gray inductive resistor wires - these are not automotive wires. There are a couple of critical items you need to be aware of on these engines. The extra voltage is needed in order for the optical sensor to operate correctly as low voltage from the battery and/or stator can cause intermittent or no fire at all. QuikStart also will activate for five to 10 seconds each time the engine is started regardless of engine temperature.Īt cranking speed the voltage from the stator may not be enough to operate the circuits inside the power pack, therefore there is battery voltage supplied from the starter solenoid via the yellow/red striped wire. QuikStart (a 10° timing advance) activates as long as the engine RPM is below 1,100, the engine temperature is below 105 F and the yellow/red wire from the starter solenoid is not feeding 12 volts DC to the power pack all of the time. functions to reduce the engine RPM to approximately 2,500 when the engine overheats. The pack is smart enough to know not to fire if the engine is not turning in the right direction. The optical sensor located on the top is fed power from the power pack and sends crankshaft position, cylinder location and direction of rotation back to the power pack. The OIS 2000 ignition has to have the power coil supplying power in order to operate the QuickStart, S.L.O.W., rev limiter, and fire the coils beyond cranking speed. The other QuickStart models will run the engine without the power coil being connected (of course this will burn out the control circuits inside the power pack). The OIS 2000 optical system uses the stator charge coils to provide high voltage for the firing of the ignition coils and a power coil to provide power for the electronics both inside the power pack and inside the sensor. They require a timer base for triggering and use separate magnets for the high voltage and triggering the timer base. The other Johnson/Evinrude QuikStart ignitions use stator charge coils and a power coil to provide high voltage and power for the QuikStart and rev limiter circuits. We have chosen to narrow this troubleshooting guide to the Johnson/Evinrude 60° 6-cylinder ignition (OIS 2000) 1991-2003 model years.ĭue to the differences in this ignition system, troubleshooting can be somewhat difficult if you are not familiar with the design. MASTERTECH MARINE, CDI Electronics and their respective employees cannot be held responsible for any injuries or damage resulting from the use of, or application of the following data. Use care and caution when working on a running engine. The timing wheel cover is a machinery guard. This ignition system produces very high voltages and due care and caution must be practiced in working with it. The following information is presented for the use of MASTERTECH'S customers as a courtesy by CDI Electronics. Guide to troubleshooting the Johnson/Evinrude
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