Recent content by jddens

  1. J

    1998 ZXI 1100 smokeing!

    I have a 1998 ZXI 1100. It runs great but smokes a LOT at startup after sitting. First start of the year it blows huge cloud of smoke and then it is fine as long as it gets run every couple of weeks or more. If it sits a month or 2 or over the winter, big cloud at start up. I'm wondering if the...
  2. J

    Leaking gear lube from prop hub

    I have a 1984 15 hp rude. I changed the gear lube and started it for the first time in 2 years. Everything seemed fine however the next day I had watery brown gear lube leaking from the prop hub. I checked the parts blow up and am assuming the most likely cause would be the two seals between...
  3. J

    1986 15 hp runs cold?

    I have what I think is a 1986 15 hp rude. It's down at the marina and I can't check the serial number now. This motor is new to me and I know nothing of the history, however it seems to run great. The pee stream is always cold, even running WOT.....I'm assuming maybe the thermostat has been...
  4. J

    Merc 7.5 vs 9.9

    I have a Merc 7.5 hp and think someone told me it's the same as the 9.9 with different carb??? Is this true, can the 7.5 be turned into a 9.9. I have this on an inflatable and another couple hp would be a good thing........thanks in advance......John
  5. J

    Two 1979 6hp Johnson long shaft questions

    Two Questions: 1. What is involved in converting this motor to a short shaft,,, or can it even be done? 2. Can the HP of this motor be increased around 10hp? Thanks!!!!!....John
  6. J

    7.5hp running hot??

    When I fired up my 1980 merc 7.5 this year I didn't get any water from the pee hole....replaced the thermostat and impeller......now I get a weak stream from the pee hole, volume seems to fluctuate with the thermo maybe but the water is hot....I get no water from the exhaust at the top of the...
  7. J

    Johnson 6hp won't run slow

    Picked up a used dinghy today and it came with a 6hp Johnson. motor runs good a rpm but won't idle or run slow. My first thought is the low speed circuit in the carb. I'm thinking a rebuild kit but thought I'd check with the experts first.......thoughts? Thanks in advance............John
  8. J

    Best Prop pitch??

    I have a 1985 Bayliner Trophy 17 foot bass boat with the Force 85hp engine. What is the optimum prop pitch for max cruising speed? I usually boat alone and don't pull tubes or skiers so hole shot is not important to me, just optimum cruising speed. Had a prop I liked but damaged it and can't...
  9. J

    Whale Tail

    I have a 1985 Bayliner 17 foot trophy bass boat with a 1985 force 85. The Previous owner installed a whale tail on the motor. I have had various results using Dolfins on I/O's in the past and am wondering if this whale tail is a benefit or not. I'll probably remove it and do a test but before I...
  10. J

    motor surging

    I have twin mercrusier 350's, 330HP each with throttle body injection. My port motor recently developed a surging problem. Giving it throttle from idle and it wants to die then takes off and will surge from 2000rpm to 1000rpm at part throttle. My first thought was to replace the water separator...
  11. J

    85hp exhaust boot

    I did the telltale mod on my 1985, 85hp yesterday. When checking it out by running the motor with the cowling off, I noticed water dripping into the leg from what I'm calling the exhaust boot.......the rubber tube connecting the leg to the exhaust port on the upper leg. Should this be replaced...
  12. J

    17' Bayliner Trophy w/85 force

    I recently purchased an 1985 bayliner trophy with 85 force. boat runs excellent and has 140 psi in all cylinders.......i have a question about performance and props. The boat came with a spare prop that is 21 degrees pitch. the prop on the boat has no markings. the boat gets on plane fast and...
  13. J

    1986 Force 85- good or bad

    I'm looking at a 1986 Bayliner bass boat. I has an 85 force on it. Boat is alittle rough, needs carpet and clean up......I'm ok with the boat, it's the motor I'm concerned about. It appears to run good but I've heard there are good and bad years for the force outboards. Is 1986 a good year...
  14. J

    Need carb kit 7.5

    I am in need of a carb kit for my 1980-1981 Merc 7.5. It has lousy idle, will fall off and die, run great at WOT. Serial number is 5699181, Carb has "Mercarb" stamped on one side and "1364-4929" stamped on the other side......I tried this sight and they suggested I try the forum for...
  15. J

    7.5hp poor idle

    I have what i think is a 1976 merc 7.5 hp. I runs great at speed but has a lousy idle. with throttle off it will slowly peter out and die. if i catch it it will race then slowly peter out and die. I have adjusted the idle but can'tget it steady. ......i'm planning to rebuild the carb, it this...
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