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  1. K

    Can't reach WOT RPM's after churning bottom

    1974 115HP Johnson. I hit the bottom of a soft, muddy creek and churned-up alot of mud. No damage to prop, no vibrations, etc., but now I hit about 4600 RPM's at WOT instead of my usual 5100. Boat also feels sluggish, obviously not putting out the power it did before I dredged the creek! Any...
  2. K

    How does everyone wire their two battery system?

    A response in a previous thread got me wondering...how does everyone wire their two battery systems? I use an isolator to keep my batteries charged, but operating independently. My main battery is for engine start only and is also wired to a second float switch for my bilge pump in case the aux...
  3. K

    Can't figure out boat model name...

    1978 Arrowglass Bow Rider made by Dynamaglas Boat Company (Hull ID starts with DYB). Dynamaglas Boat Co. is out of business. I searched the web endlessly, but can't find out what my boat model is called using the Hull ID number. Anybody know of a good database I can go to for more info? The...
  4. K

    How long before bilge pump kills battery?

    Brand new marine battery. Not sure of the brand, but bought it at Pep Boys. I run a 2 battery system. My aux battery powers everything but engine start (main battery used for engine start only). When I shut the boat down, I have a kill switch that drops power from everything EXCEPT the bilge...
  5. K

    Hard Starting After Running Fuel Tank Dry...

    Perhaps a dumb question, but should I expect a 1974 115HP Johnson to be hard to start after I run my fuel tank (and my carbs) dry? I was really starting to sweat it out watching my battery volts decay with each start attempt after switching tanks. I pumped the fuel ball until it was hard, but...
  6. K

    Suggestions on improving performance on 115HP O/B Johnny...

    Any quick tips on improving engine performance on a 1974 115HP Johnson O/B? I usually live by the motto, "If it ain't broke, don't fix it", but if anyone knows a few quick performance enhancing secrets, I'd like to give them a try!
  7. K

    Does plug get installed from inside or outside??

    I was thumbing through some previous posts when I came across a post in reference to the bilge plug. My bilge plug is the rubber expanding type with the "T" handle for tightening. Am I suppose to install this plug from inside the boat??? I guess it would make sense. If the plug should pop...
  8. K

    Can you trust pre-mixed fuel/oil?

    I run a 19' Bow Rider with a 115HP O/B Johnson. My Clymer Shop Manual suggests avoiding pre-mix fuel from the pump because it may vary in actual fuel/oil ratio. What's the general opinion in the iboat world? For convenience sake, it seems pre-mix from the pump can't be beat, but if the...
  9. K

    How hard should steering be?

    1978 Bow Rider with a 115HP O/B Johnson. How difficult should this boat be to steer? The boat is new to me, so I don't know what's "normal". Cruising down the river, my 9 year old daughter strains to turn the steering wheel. If I'm doing circles at WOT, it's even difficult for me to whip the...
  10. K

    1974 115HP Johnson Overheat/Water Flow Problems

    I installed a temp gauge on my 1974 115HP Johnson today. Tested the engine with muffs, watched my temp gauge increase to the high side, and set the overheat warning horn off. Engine was HOT! Looks like I'm not getting any water circulation. I removed what I think is the thermostat housing...
  11. K

    How much water to run engine with muffs?

    My patience worn thin today (as far as the weather goes) and I decided to fire-up my 115HP Johnson that has been sitting winterized. I hooked-up the hose muff and started the engine. All the water seemed to be squirting out from under the muff during the run. Shouldn't I see most of the water...
  12. K

    Are PFD's Machine Washable?

    Anybody tossed their moldy, nastly PFD's in their washing machine? The only instructions I see on my PFD's say "Do Not Dry Clean". Should I assume that machine washing is OK? I'm so glad I'm at the point where I can ask such trivial questions about my boat!!!!
  13. K

    BILGE/FUEL VAPOR VENTING

    Hi everyone. I have a question about fuel vapor venting. If this topic was covered previously, forgive me, I didn't find it when I did a search. Anyway...I was concerned about venting fuel vapors from my boat. All the talk about venting fuel vapors appears to be centered around I/O's, which...
  14. K

    Battery Isolator/Alternator Wire

    1974 115HP Johnson O/B. I'm attempting to convert to a dual battery system. Does anybody known the wire color code for the charging circuit coming from the alternator and through the wiring harness into the boat? <br />Thanks
  15. K

    Water Pressure Gauge Installation

    1974 115HP V-4 Johnson O/B. I'm attempting to install an OMC Water Pressure Gauge Kit, P/N 124498. According to instructions, this kit fits V-4 engines, but doesn't specify a year. Following the installation instructions, I'm suppose to tap into the "overboard indicator hose". A picture...
  16. K

    The usual fuel/oil ratio dilemma...

    I recently bought a boat that has a 1974 115HP Johnson O/B installed. The previous owner tells me he used one quart oil for every 6 gallons. According to my Clymer Shop Manual, I should be using one pint to every 6 gallons. I read about a gazillion previous topics referring to fuel/oil...
  17. K

    1974 115HP Johnson Temp Indication Mod

    I'd like to replace my over-temp "idiot horn" with a gauge that allows me to read actual temperature. Is there an after market kit that supplies the gage with the sending unit to replace the existing temp unit? If so, any suggestions on where I can purchase it?<br />Thanks
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