Search results

  1. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    I realize its been a bit bit thanks for that video! That really showed me how this boat/motor should be running. Happy to say I have it running the same now! Did a full tune up (dist cap,rotor,plugs, wires,fuel/water sep) and runs great, revs full now. The biggest and most obvious was the...
  2. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Also once the tune up/rpms are done and seems to be more in line with normal operation I'll be getting another prop (or two) and be looking at those recommendations as well. Thanks folks, really appreciate the help here and I'll definitely reply back once I get it all straightened out.
  3. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Thanks, no owner and I both live in the St. Louis, MO area so no altitude change. I'm leaning heavily on the fuel/carb side that you mentioned. From my understanding the boat sat for at least a year and probably longer. Owner mentioned Stabil always added prior to storage and when I got it there...
  4. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    No exact count but expect they are on the low end. The couple I bought it from only used it on a small lake and probably never hit WOT much if at all. The engine is very clean, and seems to have been well maintained by a Tracker service center (I have all the receipts from original owners) ...
  5. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Oh and the four blade, making 4100rpm and 40mph WOT run i meantioned yesterday was with four people, so around 500lbs. Still would think I could get to at least 4400 rpm based on what it seems others have experienced with a q5i 190hp. Holeshot power comes on slow also, but does build fairly...
  6. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Thanks, I'll definitely be getting a full service on it with compression check. I've run three tank fulls of gas through it. The first had heat added to try and eliminate any potential water/fuel issues but that gas is long gone. I'm at Table Rock Lake (Branson,Mo) for the week on vacation so...
  7. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Thanks for the replies, my primary concerns are that either the engine has an issue by not making power with the factor 14x23 three blade prop or that I may be over loading (tasking) the engine. This evening the water was flat/calm and I tried both the 14x23 three blade (that it came with when i...
  8. O

    2010 Tahoe Q5i 4.3l will only make 3500-3700 rpm, 32 mph

    Hello, my 2010 Tahoe Q5i is only making it to 3500-3700 rpm and tops out about 32mph WOT and trimmed with just me in the boat (215lb). 4.3l carburated 190hp with stock 14x23 three blade prop. Tried a new 14x23 four blade (should be a 14x21) but results roughly the same. Prop hub is good (no...
Top