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  1. O

    major electrical short?

    ok im getting my 74 merc back into shape for this year and i get the new battery installed connect it up and my main circuit breaker keeps tripping and reseting, at the same time all my guages top out anyone know what could be doing this. my trim pump still works but my starter wont turn over...
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    electric choke conversion

    i have a 74 merc 140 with the 2bbl rochester carb, and the thermal choke thingy (technical term)broke quite some time ago and quit working. i was wondering if there was an electric choke conversion for this.
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    tune up fits

    i have a 74 merc 140 im trying to tune it up, so i run it in the driveway with the muffs on set everything the way the book says timeing dwell ect... runs great so i shut it down and start i back up check everything again and call it good for the day. I take the baot out the next morning and it...
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    shifting problem

    i have a 74 merc 140 with a pre alpha drive unit,and im haveing problems with the shifting. i goes into gear ok but it is VERY hard to pull out of gear anyone know a poss. reason for this?
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    u-joint subsitution

    it's time to replace my tired old sloppy u-joints. Now i've looked at the price for merc replacements and, well lets just say the prices leave a bit to be desired as far as a pair of u-joints go. i've got a 140 with an old type 1 drive I beleave they call it, well pre-alpha anyways. Now is there...
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    shocking

    i was driving home last night buoncing down the road thinking to my self"man i need some new shocks for my truck." when i had a little light bulb pop up over my head. has anyone ever thought of putting shocks on a boat trailer i don't think i've evr seen this? is it already out there and i've...
  7. O

    lag bolts or nutz n bolts

    I'm adding a swim platform to my bolt. I'm close to done but I have come to a crossroads. All I have left to do is mount the stupid thing, but i cant decide weather or not i could use Lag bolts or wood screws to mount it or should i just drill through the transom and use nuts and bolts. I would...
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    swim platform brackets

    hey i'm building a swim platform for my i/o and i want to make it removable but i can't find any brackets that will allow this. dose anyone out there have any ideas or know where i can pick up a set of detachable swim platfrom brackets?
  9. O

    add trailer brakes?

    I have an old 18ft 74 tahiti and in cali. they require trailer brakes on everything over 1000# or something like that. I my trailer never came with them i don't even think it was an option when my dad bought the boat 30 years ago. Can they require me to up grade this sucker. And if so am i going...
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    2 questions prop and gas

    this is my third post and you guys have given me some good help so thanks. <br /><br />to the questions. i have a 74 mercruiser i/o with a 140hp engine. My first problem is that my dad was running it in salt water for a while and neglected to clean the salt off the prop real good(bad dad. bad)...
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    140 ignition conversion

    I have come to the end of my rope with burnt points. i would like to convert my 74 140 from piont type ignition to electronic. i have talked to my local marine shop and he told me that he hasn't sseen one that would work for my boat, but i have seen many on-line that say they are for my engine...
  12. O

    old boat, new speedo

    i have a 74 tahiti with a merc 140 i/o and i use it for all kinds of stuff like skiing and wake boarding and i want to add a speedo, but how would i mount it. more specifically am i going to have to drill a hole in the tramsom to run the tube and more importantly what is the best way to seal...
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    late shifting

    i have a 74 merc and am having trouble with the shifting. it sits in neutral ok but to get into gear (forward or reverse) i have to push the control lever about halfway down. i tried adjusting the cables and i could make it go into forward gear realk nice but it moved reverse way out of range...
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