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  1. C

    hei ignition retrofit

    aftermarket distributor. says marine rated? what wires from harness from helm would be power and tach? thanks!
  2. C

    hei ignition retrofit

    a team performance. description says red for power green for tach?
  3. C

    hei ignition retrofit

    350/260 hp mercruiuser alpha one gen one drive. had issues with stalling/hard starting with oem thunderbolt 4 ignition system. installing hei distributor but confused about hookup? hei has 3 wires outside distributor but when pigtail is plugged into unit only one red and one green remain? no...
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    thunderbolt ignition wiring diagram

    i need to know which engine leads go to which terminals? thanks
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    thunderbolt ignition wiring diagram

    350/260hp mercruiser with thunderbolt ignition system. replaced original distributor pickup sensor but need wiring diagram? original had threaded studs but new sensor has pigtails? also does black wire from pigtail need grounding to distributor or is block okay? thanks!
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    mercruiser 5.7 350/260hp alpha one outdrive starting issues

    newly rebuilt carb.what connections?
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    mercruiser 5.7 350/260hp alpha one outdrive starting issues

    gas is good.no foul smell of phase separation.treated and stabilized from last season. get engine started with difficulty and still seemed starved for fuel above 2000rpm. when finally got above 3000rpm tach went crazy going back and forth? ignition issues? ideas appreciated? thanks!
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    mercruiser 5.7 350/260hp alpha one outdrive starting issues

    83' mercruiser 350/260hp alpha one outdrive with rochester quadrajet carburetor. replaced mechanical fuel pump.engine started and was run for about 10 minutes. several days later engine would not start so replaced carburetor. boat still failed to start except briefly on starter fluid checked...
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