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  1. jimmbo

    Sputtering Johnson V4 90hp - 1994

    That is Good News, as very often those wells are full of the things I mentioned earlier. Verify the Float Level while it's apart. A closed Carb has no effect on a 2 Strokes Compression numbers as Air can enter the Combustion Chamber via the Exhaust Ports. 4 Strokes are a different Animal...
  2. jimmbo

    Sputtering Johnson V4 90hp - 1994

    I think a Sheetrock screw would pose a greater Threat, as once it get a bite it is going forward. As for metal shavings, you are removing it to clear out Gum, Varnish, and Dirt, so a few Metal Shavings are likely larger than any of the Dirt in there. That Crank Seal looks nice and dry
  3. jimmbo

    Mercury classic 40hp two stroke

    This Picture?
  4. jimmbo

    Sam Neil

    I saw that early this Morning. ☹️
  5. jimmbo

    Mercury classic 40hp two stroke

    The Motors that utilized the Hole in the Piston, were called 'Power Ported'. The Block had to be redesigned to accommodate a Trench in the Cylinder Wall for an additional Transfer Passage While all Power Ported Motors were Direct Charge, not all Direct Charge Motors were Power Ported
  6. jimmbo

    Mercury classic 40hp two stroke

    While there was some Licence(have you ever seen a Company that doesn't stretch the Truth about it's Product?) used in Marketing the Direct Charge, it was still an Improvement over the older Cross Charge design.
  7. jimmbo

    A bit of OMC History from 50 yrs ago

    I remember seeing this Video at the 1976 Boat Show. The first yr for the V6
  8. jimmbo

    Sputtering Johnson V4 90hp - 1994

    That would be the Seal. However, I did jump the gun a bit. The V4 does have 6 Seals(#16) that are on the Crank Shaft, these are used to seal each Individual Crankcase from each other, and in the Case or Cylinders #1 and #4, isolate their Crankcases from the Crankshaft Bearings and Seals. So the...
  9. jimmbo

    Sputtering Johnson V4 90hp - 1994

    Yes
  10. jimmbo

    Sputtering Johnson V4 90hp - 1994

    When you had the Carbs apart, for cleaning, did you remove the Core Plug(#2 in the Exploded Diagram) and clean out any Gunk behind it? A replacement would be in a OMC/BRP Carb Kit?
  11. jimmbo

    cooking

    A bit more cooking and this Pork Belly would be how I like it.
  12. jimmbo

    Sputtering Johnson V4 90hp - 1994

    Yes
  13. jimmbo

    Mercury classic 40hp two stroke

    You had stated you had a feature, 2 yrs prior to it being Introduced
  14. jimmbo

    Mercury classic 40hp two stroke

    Direct Charge, a variation of the Crossflow, with a different Deflector Shape which may affect how it scavenges the Cylinder. It also allows for a lighter Piston with less of a Heat Sink on the Crown
  15. jimmbo

    Sputtering Johnson V4 90hp - 1994

    If it's #1 that is the Problem, try to get a look at the Top of the Block, for Oil. I am mentioning this cause if the Upper Crankshaft Seal is worn, Oil can get out, more important though, is that Air can get in, leaning the Top Cylinder.
  16. jimmbo

    Sputtering Johnson V4 90hp - 1994

    A Service Shop, certainly will not use Noncompliance Parts, at least any Competent and Ethical Shop. As for Do-it-Yourselfers... Insurance Companies can and will deny Claims, including Liability if a non USCG certified Part, caused a Problem. And they are pretty good at finding things like that...
  17. jimmbo

    Sputtering Johnson V4 90hp - 1994

    Looking at the Parts Diagram for your Carb, I would say the Idle Mixture is fixed and not adjustable.
  18. jimmbo

    Can't sync my 2003 25 hp 2 stroke...

    Keep in Mind, that we don't have your Motor in front of Us, and are going by the Symptoms and Descriptions you provide. What do the Plugs look like after running? Looking at the one Pic, the part that secures the Part you adjust the Cable Length with(Trunnion), looks like it signs of...
  19. jimmbo

    Sputtering Johnson V4 90hp - 1994

    Some people are always screaming about Red Tape, how it slows things down, and adds Expense, but those Rules and Regs are the Result of Boneheads who use whatever they think will Work, ignoring Common Sense if it doesn't match their Thought Process. Same goes for those who insist that there is...
  20. jimmbo

    Sputtering Johnson V4 90hp - 1994

    I believe there is a USCG Cert required for any Fuel Line used in a Boat, so Auto/Truck Fuel Hose might not be Legal
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