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  1. K

    Cracked Cavitation Plate - What to do?

    While wiping the boat down after trailering it the last time out, I noticed a crack in my cavitation plate. I'm almost certain I didn't hit anyting in the water. Could I have caused this? Can it be repaired/welded without replacing the lower unit houseing? Can I just JB weld it? I really...
  2. K

    orbital or rotary polisher

    try to bring back the shine on my boat. got some McGuires oxidation remove and Gel Coat Labs-Oe step gel coat micro polish and sealant. should i use a rotary or random orbital machine to apply each? Also, on my outboard (black mercury) is is ok to use these products to remove the dullness...
  3. K

    Motor Up or Down Between Uses

    What do you do and why? Do you leave your outboard trimmed up with the transom saver bracket on or tilt it down, and if down, all the way down or just till the motor is perpindicular to the ground?
  4. K

    Johnson T&T Bench Test How To??

    Hope this isn't in the category, but have seen other T&T questions here so.... Looking at buying a used trim unit for my '84 90HP Johnson, its a two wire unit, one blue wire and one green wire. Can it be tested (make it go up and down) while not installed on a motor/boat (bench tested)? Can...
  5. K

    Bow Fish Finder Power Source?

    Took my boat to have a helm and bow (or trolling motor) finder wired. When I asked to have wires run up to the bow from the battery to power a TM finder (haven't bought the finder yet), and the guy told me (over the phone, had to drop off after hours) that I didn't need to, I just needed to...
  6. K

    Water Pressure Readings?

    I tried to utilize the search function but came up with nothing can anyone tell me what water pressure should be reading when at idle and WOT for a '84 90HP Johnson (pushing a 17.5' stratos f/s bass boat). It runs right at 5000 rpm at WOT. I watch the gauge often, but don't know what proper...
  7. K

    90 HP Issue

    '84 90hp Johnson, Issue: Black exhaust coming from hub. Is this oil getting past a broken ring? not getting enough oil? Is there anyway to tell when the vro pump stops working, like will the low oil warning beep? What would cause it to idle fast on its own then didle down on its own upon...
  8. K

    Battery type?

    Any special requirments for a cranking battery i need to buy to go on a 91' stratos fish/ski with '84 90 horse johnny. Cranking battery only, along with usual accessories. Troller runs of 2 seperate deep cycles. Appreciate the help!
  9. K

    12v/24v power difference

    boat i bought has a 12/24v '91 johnson trolling motor. when I got it, only one battery so it been running 12v. How much of a thust difference will there be adding a another battery and running in on 24v. trying to decide on whether to buy a new TM or not. If 24v will give me more power thats...
  10. K

    T & T Fluid?

    The T&T on my '84 90hp Johnny stopped trimming up, or out. Using the two lower pistons for the first 15 degrees it lifts fine, once it gets to the single piston, is stops, figured it was low on fluid. Bought some Pennzoil Marine Power T&T fluid, it has a normal golden oil color. While toping...
  11. K

    V4 90HP Johnny Leaking Oil - OK to Run?

    She's leaking oil where the bottom section of the block/powerhead cover connects to the mid section. VRO is connected and working, doesn't seam to be leaking from it or the hoses to and from. Other than leaking, it is running great, only smokes upon start up then quites, so i supposed it not...
  12. K

    Failing Rectifier-Tach Association

    the following is some advise/info i was given elsewhere, but it contradicts much of what I have searched and read here on iboats, specifially your post/replies Spinnerbait Nut/joe reeves. in regard to a failing rectifier: "It may or may not affect your tach, a single diode in the voltage...
  13. K

    Manuals - Getting Raked Over the Coals!

    I have read over and over on here "get the OEM service manual! Don't mess with third party manuals, spend the extra money!!!" I have no problem footing some extra cash for a better product but getting taken to the cleaners, i'm not so fond of! The only place (besides getting lucky on ebay or...
  14. K

    90 HP Johnson Questions

    Preface- excuse my outboard ignorance, im leaning, and have ordered the $90 OEM manual, as so many suggested. Q #1 I was told, when I purchased my '91 Stratos F and S that it was believed to be factory rigged. Well after looking at the model year finder on shop.evinrude.com, apparently my...
  15. K

    '91 90HP Johnson Barely Turning Over

    The motor on my recently purchased boat has ran beautifully the last couple of weeks, no hard cold cranking at all, been firing right up. The last time I had it out, i notice that when I try to crank it, it was turning over slowly until it fired, then it ran great. Last night I tried to launch...
  16. K

    Possible leak from Seafoam??

    Had the boat with '91 90hp Johnson o/b for aboiut 2 weeks and its running great. It was recommended to run a can of seafoam every now and then. Poured full 20gallon tank and ran it for a while. Had boat docked with prop out of the water for a while, then came back to some oily substance...
  17. K

    Salt-Away Products

    Salt-Away Anyone used this stuff, is it worth the cost. I am using my bass boat (with steel trailer) in the saltwater for the next three months and will be flushing, rinsing, scrubing, washing both boat and trailer really, really good everytime it comes out of the water and am seriously...
  18. K

    In Hull or Transom Mount Transducer

    I'm sure I might get varying opinions, but I have a new Hummingbird Pinranamax 240 Fish finder and was wondering which mount i better- transom mount of in hull mount. I suppose one dray back to to an in hull mount is that it wouldn't be able to read water temp, but it protected. Does the unit...
  19. K

    '91 90hp Johnson Help - First boat

    Just bought my first boat. Its a 1991 Stratos 274 f/s 17.5ft all original factory rigged with a 90hp Johnson V4 w/ VRO, 20" pitch Raker SS prop. Currently, EVERYTHING on the boat works (knocking on wood). Took out on its maiden voyage yesterday and she ran great. I know a lot about car...
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