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  1. jimmbo

    50hp Johnson 2 stroke prop

    Welcome to iboats 30-33 mph on an 18ft Boat with a 50hp, is actually very good. Now without more info, it is a Waste of Time to give any Recommendation https://forums.iboats.com/threads/read-this-first.282907/
  2. jimmbo

    Going from 25 hp to 35 hp

    Can the Spark jump a 3/8" Gap on both Cylinder? Have you ever disconnect one of the Plugs and see how the engine runs under Load, then tried it with the other unhooked? Is there any signs of Oil-Fuel running down from the top of the Block? Is the Carb opening Fully? How long have you owned this...
  3. jimmbo

    Bogging at full throttle intermittently

    Welcome to iboats Might be a Fuel Starvation issue, That last 20% of the Throttle Lever Arc, really increases the Demand for Fuel. You say you replaced the Fuel Lines. does that include the Lines between the Connector to the Pump, and from the Pump to the Carb(s)? When you have the issue, have...
  4. jimmbo

    Prop size?

    As long as the Boat isn't underpowered for its Weight, and Load, you should be fine. Edit: Is your engine a 2 Stroke or a 4 Stroke?
  5. jimmbo

    Why is my gas orange?

    Perhaps a very thick layer of Varnish in that Tank/Fuel Line, to be able to overpower the Blue Dye in the Oil. While Lacquer Thinner is good at dissolving Gum and Varnish, it might reck havoc on the O-rings located in the Tank Disconnect, so some Caution, maybe removal of the Pickup-Float-Gauge...
  6. jimmbo

    loading up pictures on this site

    I expect Rod Sterling to appear, and end his chat with "The Twilight Zone..."
  7. jimmbo

    loading up pictures on this site

    There was an "Improvement/Upgrade" made recently...
  8. jimmbo

    SS Prop for Volvo SX

    Years ago there was a Launch at that Rock Canal near Sundance, but about 20 yrs ago, they blocked Canal up. Did they reopen it? Edit: Looking at Google, it is the same One. And I see the Parking Area. I will have to check it out. Keep this on the QT, or else it will be overloaded
  9. jimmbo

    SS Prop for Volvo SX

    You did, until I started my Motor... I haven't been out since 2021. The Town Really Effed up the Launch Site, and the Park is now even Worse. Docks are almost Non-Existent. My poor Buick was Sideswiped Last Year, and I haven't moved the Hitch to the Caddy
  10. jimmbo

    SS Prop for Volvo SX

    When I switched to the SS I dropped 1" in pitch from the Stock AL Prop. What occurred I had my SS(OMC RAKER) from my previous Outboard on hand, so I had the Hub replaced so it would fit on a VP. I later replaced it with a Merc Enertia. Both props run about the same rpm as the VP AL prop did...
  11. jimmbo

    Photos not saving to server

    So what "Improvement" to the Software, caused this Glitch? History has shown, repeatedly, that Better is the Enemy of Good.
  12. jimmbo

    Proper prop?

    You are in the Upper half of the WOT Range which is Preferable. Was this attained with Normal Loading, Light Load, or Heavy Load? Was the the Engine Trimmed for Optimal Speed when you got the Results? Is the Engine mounted at the Correct Height? You say 14 1/2 X 19. I will assume it is a 3...
  13. jimmbo

    Proper prop?

    First of all, what is engine are you talking about? What is the WOT Rpm Range for that Engine? https://forums.iboats.com/threads/read-this-first.282907/
  14. jimmbo

    1998 Johnson 175 Ficht Not Starting

    Major Overheat... Well, that could account for the Less than Good Compression Numbers
  15. jimmbo

    1998 Johnson 175 Ficht Not Starting

    That one didn't get the 2001 Powerhead, as it still the Air Cooled ECM on the Top. The replacement Powerheads had the Water Cooled ECM. This one likely had the Cylinder Heads replaced, and several Reprograming. These Engines suffered from Carbon getting in Ring Grooves and behind the Piston...
  16. jimmbo

    Rebuilt Water Pump Pee question

    All the Water Passages may take more than 10 seconds to fill Which 115 do you have, the 99cu in Crossfow, or the 60 degree Looper? You did make sure the Water Tube was inserted into the Grommet on the Water Pump? The Key for the Impeller was in place?
  17. jimmbo

    1998 Johnson 175 Ficht Not Starting

    It is a 98, and there were many Issues with those Engines. There were a lot of Updates, including complete Powerhead Replacements. The replacement Powerheads were Complete 2001 Powerheads and there were many things different. A few pics of the Powerhead, with all the fancy plastic covers, held...
  18. jimmbo

    Another gear oil thread... 80w-90 vs. 90

    A lot of Marine Gear Lubes are 75 No, Every Diff I have ever had was Vented, thus not Sealed. Ask anyone who ever submerged the Diff and Vent Hose at the Boat Launch, they usually were replacing Bearings within a few Weeks
  19. jimmbo

    Another gear oil thread... 80w-90 vs. 90

    Being that Marine Engines have such small Gears, the Marine Gear Oils may contain more EP additives to reduce the Wear on the smaller Contact Areas of those Gears.
  20. jimmbo

    1980 Evinrude 35hp water pump replacement help

    1980 was the 1st Year it was located there.
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