Search results

  1. A

    floodingmotor/boyesenreeds

    i've got a 20hp merc year2000, i installed a 25 carbon this motor wich worked fine with a little air flow adjustment. last week i installed boyesen reeds, now the motor is flooding, my buddy has the same motor and also installed boyesen reeds and they worked fine. there is gas running out of the...
  2. A

    old style flat botom racers

    i run a 14ft complete flat plywood boat this is what i race my motor on , i was wondering if anyone has any pics of this styl boat racing.
  3. A

    40hp out of 20..Possible?

    i have a 2000, 20hp merc, i've been doing my own work on it to get the most horses out of it possible, i've bent reeds, drilled exhaust, changed to a 25 carb, and last year i tore my motor apart with intentions of pot and polishing. well i polished what i could but besides around the reed block...
  4. A

    port'n'polish

    i had my 20hp merc apart last year(split the block) was planning on porting exhaust and fuel. i ended up just polishing what i could reach. i wasn't sure how acurate i had to be when porting. so i just polished anyone have any numbers for me when it comes to porting. year 2000 mercury 2...
  5. A

    small engine speed boat

    i run a 20hp mercury. it does about42mph i run off the tiller. i now have a flat bottom 14ft plywood boat that weighs about100lbs . i'm looking for a pattern for a boat that will help the performance of my motor.
  6. A

    advancing timing

    trying to get more performance out of my 20hp merc year2000, anyone know anything about advancing timing(how to, will it help)?
  7. A

    prop ventelation

    i have a 20 merc (yr2000). i"m running a 14.5 pitch prop. was wondering were to drill to ventilate, so my motor wont be so lazy down low.
  8. A

    lazy down low/will stainless help?

    i race small outbards. my motor is a 20hp merc. i'v tweaked the reed valves drilled exhaust and upgraded to a 25hp carb. i got great speed top end but its lazy out of the hole. i'm now running a 14.5 aluminum. do you think a stainless will help and not affect my top speed?
  9. A

    need more speed /20hp outboard

    i've been racing small engines for a couple years now. i have a 20hp merc. my boat is flat bottom that weighs about 100lbs. its running about 42mph. i've already tweaked the read valves drilled the exhaust upgraded to a 25 carb. just need a bit more to get by the compitition, any suggestions?
  10. A

    how do i get more hp out of my 20hp mercury

    in nb we do alot of small engine outboard racing. it seems it is easier to get more hp out of the johnson motors. iwas just wondering if anyone has any tips on how to get more hp out of my 20hp mercury.
  11. A

    25HP MERCURY OUTBRD LOOKING FOR PERFORMANCE TIPS

    IN OUR AREA OF NB WE RACE SMALL OUTBOARDS. I HAVE A 20 HP MERC. TRYING TO GET BY THE 20HP JOHNSON. SEEMS THAT JOHNSONS ARE EASIER TO TAMPER WITH. JUST WONDERING IF ANYONE KNOWS HOW I CAN GET MORE HP OUT OF MY ENGINE
Top