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  1. krizm200

    Rebuilding fish boxes on a 1974 Mako 15

    Hi everyone, It's been 2.5 years, but most all of my 1974 Mako 15 has been rebuilt. One of the last projects is to refinish the fish boxes in the back left and right sides of the boat. The original owner had the batteries one in each fish box. The batteries are now in the center console...
  2. krizm200

    Towing Long Distance and Transmission Cooler

    Hi everyone, I am moving from Seattle WA to Austin TX, about 2000 miles. I have a front wheel drive Kia Sportage 2016 that I use to tow my Mako 15. It has never been an issue, but the distance is only 20 miles. The weight of the Mako and trailer is about 1700 lb. Do I need to install a...
  3. krizm200

    Keel Roller Issue after Replacement

    Hi everyone, I have a 1972 Caulkins trailer (holds up to 2200 lbs.) for my 1974 Mako 15. The weight of the boat and all is around 1200 lbs. I replaced the old keel roller (8 inch rubber with 5/8 inch dia) because it had split horizontally, with an Atwood keel roller. After 4 to 5 months, the...
  4. krizm200

    Honda BF60A Fuel and Carb Cleaning Question

    Hi everyone, I purchased a Honda BF60A outboard 2 months ago after my Merc Thunderbolt 800 blew the head gasket. I have 2 questions on maintenance for the Honda. I have always burned out all the fuel at the end of the day due to the ethanol and gum problems in the carbs. I was told this is...
  5. krizm200

    Honda BF60 Tach Pole Setting

    Hi everyone, I just purchased a Honda BF60 four stroke for my 1974 Mako 15 (my 1972 Mercury Thunderbolt 800 decided to blow the head). I have a Faria Euro tach that states in the directions that the 4 poles setting should be set when connected to this Honda. When I was on the lake, the tach...
  6. krizm200

    Prop QUestion for a Mercury Thunderbolt 800 80 HP

    Hi everyone, I have been reading through posts on props, and coming up with more questions than answers. I have a 1972 Mercury Thunderbolt 800 80 hp, 4 cylinder outboard on a Mako 15 (total weight about 1200 LB's). My prop is a 3 blade aluminum 13x19 that I replaced last year (same prop size...
  7. krizm200

    Faria GPS Speedometer wiring Question

    I have a question on installing the GPS Speedometer from Faria, the Euro 60 mph. There are 3 connections, one to the ignition switch (battery), one to the battery itself, and one to the ground. I know ground needs to be connected, but if I have one to the power for the ignition switch, do I...
  8. krizm200

    Starter, Battery 1972 Mercury Thunderbolt 800 Issue

    Hi everyone, I have a 1972 Mercury Thunderbolt 800 80 hp engine on my Mako 15. I just completed rebuilding the carbs because the engine has been harder and harder to start. The carbs are done and back on the boat. The last time I was out on the lake I tried to start the engine until the...
  9. krizm200

    Jabsco 135SL Searchlight Issue

    Hi everyone, I have been rebuilding the electrical system on my Mako15 1974 boat. Everything is done (and working!) except for the Jabsco 135SL searchlight. The gear under the head (makes it turn left and right) is stripped. Does anyone know where I can get a replacement gear? I have been...
  10. krizm200

    Water Pump Question on a 1972 Mercury Thunderbolt 800 80 hp - Now Found Leaking Lube

    Hi everyone. I have been trying to figure out why my 1972 Mercury Thunderbolt 800 runs great for the first 1/2 hour, but then starts to bogg down, become hard to get into gear and not stall, and not get to WOT although the throttle is open full. I have noticed the flow of water coming from the...
  11. krizm200

    Mercury 1972 800 Thunberbolt Outboard Octane Question

    I just found the Mercury home page, I think from Australia, that recommends an Octane of 95 for engines larger than 30 hp built before 1980. My engine is a 1972 Thunderbolt 800 80 hp. Just wondering if anyone has experience with this engine since I am new to this, and my engine tends to bog...
  12. krizm200

    Controls Question for a Mercury Outboard 1972 Thunderbolt 800

    Hi everyone, I am new to this forum and a novice to larger boats (well, 1974 Mako15 with a Mercury Thunderbolt 800 1972 outboard). I took the boat out yesterday, and had issues with the throttle controls, which I think I may be using incorrectly. There are 2 levers, one to put the engine in...
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