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  1. countvlad

    new prop... low numbers need help

    My old prop was an old SS prop with 17 pitch.... i used to get 42mph@5800 rpms.... since the prop was painted and started to rust i purchased an Stiletto SS 17 pitch prop for my johnson 120 HP 1989.... well the problem is that i dropped 1000 RPMS at WOT, right now 38@4600WOT... im just confuzed...
  2. countvlad

    new ss prop Renken CC deep V 1989 120

    ESSENTIAL DATA REQUIRED When posting a question about propellers, you cannot get a reasonable answer unless you provide the following information in your post: Items 1-4 are essential for meaningful response to most questions. 1) Performance issue you are trying to correct. speed, better...
  3. countvlad

    port cylinder higher temp then starbord

    water pump and thermostats were changed a week ago... i used a infrared temperature meter to check the heads temperature and port side of the motor was 10 degrees lower then the starbord side. Took to motor out and it didnt over heat but i wasnt sure if thats normal or there might be an...
  4. countvlad

    water pressure increasing while trimmed up

    i changed the water pump a few days ago and today i took the boat out. I went from 17 psi at WOT to about 20 PSI so im happy with that... unfortunately for some reason when i trim the motor up and take the RPMS down to cruise speed the water pressure increases to aprox 27 PSI... I tested the...
  5. countvlad

    better fuel at cruising?

    hi there, hswiii could you please run these numbers on you magic program and tell me if its the optimum for my boat/motor... right now i have great hole shot, acceleration and i can also trim the bow up gaining few MPH.... the only thing that i would like to o if possible is increase my MPG or...
  6. countvlad

    1989 120 Looper 3MPG???

    last trip was 15 miles and it burned about 5.5 gallons.... i would say thats normal if i was runnig wide open but but i didnt, i cruised doing aprox 4500RPMS with the motor trimmed up.... carbs have just been rebuild, getting ready to change the spark plugs and wires... timing @ WOT is correct...
  7. countvlad

    pegged water press gauge when turning

    i was trimmed half way on the trim gauge doing about 4500-5000 rpms.. looked at the gauge and the pressure pegged... once i got back on straight it went back to 20 psi.... i didnt see doing this any other time... is it because the water inlet on the lower unit is taking water+air?
  8. countvlad

    water pressure gauge pegged when turning

    i was trimmed half way on the trim gauge doing about 4500-5000 rpms.. looked at the gauge and the pressure pegged... once i got back on straight it went back to 20 psi.... i didnt see doing this any other time... is it because the water inlet on the lower unit is taking water+air?
  9. countvlad

    cant get idle below 750-800 1989 120 Johnson

    I followed manuals instructions and couldnt get it below 750-800 to idle in gear.... motor is a 1989 120 Johnson looper :D .... i had a timing light with me and got the motor to idle around 4 ATDC... seemed like anything below it would idle at same rpms but it would smoke more than it would...
  10. countvlad

    5600 WOT 17p ok?

    motor is a 120 Johnson J120TLCEM 1989 boat is a 19' 1976 Renken CC deep V... at 5600 WOT i do about 41MPH on the GPS... the prop is a 17 pitch SS prop but no idea the make.... i looked in the repair manual and couldnt find anywhere the recommended WOT.... so does anyone have any idea for...
  11. countvlad

    1989 120 Johnson little smoke and oil/gas at idle

    Hi everyone i figured the carbs might be dirty so i did a decarb with seafoam per Joe Reeves... wot improved.. idle etc but for some reason still smokes a little at idle and spits out small amount or either oil or gas out of the exaust... i can definetly see the oil/gas water patches.... one of...
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