Have a 4.3L Mercruiser with a 2 barrel carb (807764) on a 2001 Bayliner 1850. Bought a spare carb locally from someone who had the same carb (got it from someone who didn't winterize their boat properly and cracked the engine - so they were parting it out). Paid $50 for it, so figured it would be worth it to just swap carbs in and out as I rebuild them (to not be down if I can't get one going for whatever reason). Carb looks in pretty good condition (fairly clean).
I've been looking at the manual at the carb rebuild instructions (and youtube videos). Seems fairly straight forward. I believe normally these carbs are suppose to have a tamper resistant idle mixer screw shield to stop people from adjusting it (the one I picked up does not, guess someone removed or rebuilt it).
I just ordered an Ultrasonic Cleaner to make sure it's cleaned thoroughly. So has been a bit of an investment so far.
Anyhow, the steps I'm uncertain about (my question) is if I have to set the Base Ignition timing, ground purple/white wire to engine, use a "shop" tachometer, timing light, etc. etc.
I've noticed on some threads people are not mentioning performing the above, just setting the Mixer/speed screws (and I assume they just use their tachometer on their dashboard).
Didn't want to have to purchase any items if not really required (or set the Base Ignition timing if not required)
Appreciate the pointers and thanks in advance
I've been looking at the manual at the carb rebuild instructions (and youtube videos). Seems fairly straight forward. I believe normally these carbs are suppose to have a tamper resistant idle mixer screw shield to stop people from adjusting it (the one I picked up does not, guess someone removed or rebuilt it).
I just ordered an Ultrasonic Cleaner to make sure it's cleaned thoroughly. So has been a bit of an investment so far.
Anyhow, the steps I'm uncertain about (my question) is if I have to set the Base Ignition timing, ground purple/white wire to engine, use a "shop" tachometer, timing light, etc. etc.
I've noticed on some threads people are not mentioning performing the above, just setting the Mixer/speed screws (and I assume they just use their tachometer on their dashboard).
Didn't want to have to purchase any items if not really required (or set the Base Ignition timing if not required)
Appreciate the pointers and thanks in advance
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