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    Carb Sync question

    I know this thread is ancient, but I thought I'd throw The Digi Sync into consideration. I've worked with all the old-school carb sync methods, and this one wins hands-down! It's the latest digital carburetor synchronizer tech. It's incredibly simple/intuitive to use and if I remember right, it...
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    Alarm Wiring Question

    I have a 1995 Rinker Flotilla with 4.3L Mercrusier engine. Just pulled the boat out from winter storage and now I now have an alarm with the Key ON. I don't recall exactly the Key On scenario last Fall, but I know it ran correctly without the alarm. I've done a handful of maintenance over the...
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    No Spark - Ignition Module?

    I have a 1995 Rinker Flotilla with 4.3L Mercrusier engine. It has a Thunderbolt IV Ignition System. It ran great last winter when I put it away. Now today, I tried to start it on ear-muffs. If just barely started to fire-up, but died. I got it do the same one more time and then never again...
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    Engine noise with key in accessory position

    I have a 1995 Rinker Floatilla with 4.3L Mercruiser engine. It's relatively new to me. So, I'm still learning what is and isn't normal. I noticed that when I turn the key to the on position there is a buzzing (electric motor noise) coming from the engine bay. Other posts indicate this is likely...
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    Lower Unit won't go back one - Can't get into forward gear

    I removed the lower half the alpha one to replace the water pump impeller. The lower half went back into place like butter, but at that point I realized I had mucked up and remembered that I forgot to disconnect the speedo tube when pulled it off in the first place (months ago). When I did that...
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    4.3L Water Temperature Senders

    Can someone please tell me the part numbers for the two temperature sending units for this engine serial number: 0F288991 I've looked through the parts diagrams, but don't see these parts. Note: My temperature gauge wasn't working. I grounded the wires out. One beeped and the other made my...
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    Winterization Drain Plug Locations

    Engine Serial number 0F288991. I found 3 plugs, but all the YouTube videos I saw showed 5. I looked again and again, but don't see the plugs that are supposed to be directly on the block on the port and starboard sides. I've also looked at the online diagrams, but didn't find any plugs on the...
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    Dropped lower unit and pulled out speedometer tube

    I bought a 1995 Rinker Flotilla and wanted piece of mind. So, I was replacing the impeller (my first time ever). When dropping the lower unit, I didn't disconnect the speedometer. Instead, I accidently pulled out about 8" of black tube. It had a white barbed hose connector on the other end. So...
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    Help troubleshooting 1989 Maxum engine. Barely running...

    Summary: Boat trouble after head gasket replacement. It runs, but quickly revs too high and then dies when trying to pull back the throttle. 1989 Maxum I/O with 3.0L Mercruiser GMC engine. Full Story: Owned for 13 years. Ran well until I let it set for the last 2 years (with Seafoam in the gas)...
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