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  1. Texasmark

    Inspecting 2002 Tracker 125 HP Outboard

    I recall Faztbullet making the same comment years ago. As I mentioned somewhere earlier, I wonder what Mercury did to get 10 more HP from the 115 HP with its rev limiter set to 5250.
  2. Texasmark

    1994 mariner 115, oil injection

    You just nullified finding the top cap seal as your potential problem if it's the problem. It shows up on a full tank (or near full) with the engine tilted all the way up sitting overnight or longer. First clue is you have oil in the bottom of the engine compartment when you take the cowling...
  3. Texasmark

    1997 Merc 9.9 two stroke dies when advancing throttle

    Don't waste your time nor money chasing a ghost. Do as directed and if that isn't the problem THEN start your worrying.
  4. Texasmark

    Inspecting 2002 Tracker 125 HP Outboard

    My last OB engine was a 2002 Mercury 115 2+2....same basic engine but has RPM limiter set to 5250 RPM. I don't know what makes that 10 hp increase on the 125...could be just no rev limiter allowing the RPMs to climb on up to a higher number....5500 or 6000, or carb jet increase my guess. My 115...
  5. Texasmark

    1994 mariner 115, oil injection

    What's the origin of the leak......the seal for the fill cap? On OI being any good or not I have a 90 I disabled and later a 115 that I didn't, both 2002 engines. I'll bet you find a lot of folks sitting on both sides of the fence on that subject.
  6. Texasmark

    1997 Merc 9.9 two stroke dies when advancing throttle

    That's the test for the correct position of the low speed screw.......open it up as stated until the boat takes throttle, especially coming out of the "hole" and getting on plane.
  7. Texasmark

    85hp Merc?

    Well I had the last 1988 (year built, sold as a '89 model) 115 I6, Direct Charged "Tower of Power" on my new 1989 Ranger Bass Boat. Absolutely one of the finest engines I ever owned. The DC engine had the domed piston like the CF, unlike the Loopers, but had a hole added to the side of the...
  8. Texasmark

    85hp Merc?

    The 3 cylinder is probably Loop Charged allowing for increased fuel economy. I will say this about my experiences with Cross Flow fueling methods vs Loop Charging methods......the CFs I owned were bullet proof and easy to start after sitting up between outings. My loopers not so.....a lot more...
  9. Texasmark

    How can I make my Tracker 40 HP faster?

    That engine height is excellent. The L in the ELPT identification is indicative of the long (20") mid section.....best I can tell you have a 20" transom in that boat so the height is OK fine!!! While I am here, the second picture shows the lever that moves the carb butterflies as the lever...
  10. Texasmark

    1978 50hp Mercury timing and synchronization

    Move your throttle lever back and forth and watch what moves inside the engine compartment. Usually at least one of the levers that move....one is for carb butterfly control and the other is for timing changes, sets the engine timing to set the idle speed (on some engines like mine) and the...
  11. Texasmark

    85hp Merc?

    I bought about a 1974 85 4 cylinder with PTT new. One of the finest engines I ever owned. One thing that stands out is in the winter I would pull up to the ramp, dip my trailer "properly" start the engine...immediate thing, and back off and secure, put my truck/trailer in the parking lot and...
  12. Texasmark

    Prop barrel slightly smaller than the gearcase

    I replied to your post but it wound up several listings below.
  13. Texasmark

    Prop barrel slightly smaller than the gearcase

    I think the physics behind this is similar to ported props. As soon as you reach a certain speed, water pressure from new water forces the exhaust to hug the hub, rather than being spread out over the blades like is the case at lower speeds where slip is significant.
  14. Texasmark

    Prop barrel slightly smaller than the gearcase

    Interesting. I don't know what I expected to see but apparently that works.
  15. Texasmark

    Prop barrel slightly smaller than the gearcase

    You mind posting a picture of that? I find that most interesting....in short, what does the engine do with its exhaust gasses as a result?
  16. Texasmark

    Prop barrel slightly smaller than the gearcase

    Along those lines, I "think" I have seen high performance props where there is no "tunnel" for gasses to exit behind the prop. What I don't remember seeing is what the LU casting looks like right in front of the prop......I recall early low HP Mercury racing hydroplane short shaft engines that...
  17. Texasmark

    Prop problem

    Since they are made of "cast" aluminum, cast anything metal and surely some other materials oppose flexing. I agree with "airshot" and figure the percentage at a single digit value. On the other comment by Cyclops222.........Prove it!
  18. Texasmark

    How do you screw into fiberglass/gelcoat without chipping?

    Well that answers the question why I first saw them at work. A lot of sheet aluminum was processed......5052 T6 if I remember correctly after being retired 20 years.
  19. Texasmark

    How do you screw into fiberglass/gelcoat without chipping?

    I have done that and I think this is the type bit I was trying to describe above.
  20. Texasmark

    How do you screw into fiberglass/gelcoat without chipping?

    When in industry, people who worked certain substances used a peculiar bit. It may be referred to as a "sheet metal" bit. Rather than having a chisel point where the cutting edge starts at the center and as it penetrates the material the bit is slanted and works its way out to the final...
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