Recent content by 9758JB

  1. 9

    Non slip deck surface texture unknown. Wanting to replicate

    Hello. I have an older(1973) fiberglass boat that has a neat non slid deck. It's almost like blobs of paint but it's much harder like a resin substance. I'll be doing some repair work and where I glass it in would like to spray it back down. It's really works well and keeps the glare down...
  2. 9

    Turning point vs omc stainless

    Hello. I have a 70 hp johnson. When I got it it had a stainless steel omc 17 pitch prop. It had a few dings in the blades but nothing too serious. I bent and filed them out. With a full load about 2000 lbs, it would pushes me 31.5 mph at 5400 rpms. I got this turning point hustler, 17 pitch...
  3. 9

    1981 70 hp timing issues

    Finally got her out on the water and timmed it. Acted kinda funny, but basically to bore the long story.... first Just a quick view on how engine ran before, Motors never ran bad. Does seem like low end torque is low under 3000 rmps but thought that was normal. Timimg advance is 19 degrees...
  4. 9

    Link and sync, now timing... just a check through

    Hello. I have a 1981 johnson 70 hp and now finally getting a manual I've done the link and sync and timimg. I found top dead center with a homemade piston stop tool and found the pointer was about 2 degrees retarded from where it should of been so I adjusted and measured, and measured and...
  5. 9

    Johnson. Factory prop vs aftermarket size difference

    Hello. I have a jonhson 70 and current prop is a 13 3/8 x17. I noticed I can only find new props that are 13 1/4 x17. I figured this is a omc thing where the after market cannot be the same? Will this 1/8 inch difference show any noticeable performance issues? What about increase in rpms? Thanks
  6. 9

    1981 Johnson 70. carb adjustment and synchronization

    Hi. 2 years ago i bought a Johnson 70 and after cleaning the carbs has been running very well for about a year. idles greats, runs great. Doing some reading i want to get the carbs synchronized to be sure none are running lean. i have a suspicion they are close, but i want to be sure Standard...
  7. 9

    First time frightening experience on lake with bad storm front... still questions

    Hello everyone. Kinda feel like a noob on here posting this, but i already lost my pride out on the water. i wouldn't consider myself a weekend warrior on the water, in general, i have a pretty level head and compared to most im pretty confident in my ability over theirs. Until recently i...
  8. 9

    Engine bogging at start of run

    I have a 1981 Johnson 70hp outboard. I bought it from a guy who had it sit for 2 years. And I wasnt expecting much. First time I had it out, it ran great. Next time it would bog after running for about a min, and wouldnt get to full speed. I ran a tank of gas and carb cleaner through engine...
  9. 9

    Orfice on 70 hp Johnson carb

    Put new gaskets on my 1981 Johnson carberaters. On the gasket that goes between the intake and the front of the carberater, I have 3 bolt holes and this other opening I'm unsure about. The opening is in the top left corner from the face, and about the size of a pencil. On 2 of the 3 carbs this...
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