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  1. S

    2001 mercury 40 hp 4 stroke missing on botton cyl under load

    Update..... finally got time to look at this again and last test I did was swap carbs between #2 and #3 cyl .... not easy as it sounds...and the problem followed the carb.
  2. S

    2001 mercury 40 hp 4 stroke missing on botton cyl under load

    You are right that just because a plug fires in atmosphere doesn't it will fire under compression.... plugs and coils have been swapped out.... have also ruled out valve adjustment now .... carb is coming off again to see what I missed .... thnks for reply
  3. S

    2001 mercury 40 hp 4 stroke missing on botton cyl under load

    With air intake off ... it will pick that cylinder up if air is restricted... choked .... have had carb appart... cleaned , but see nothing wrong... am about to check valve adjustment. Anyone had similar problem, with possible suggestions... thanks. I am a honda guy ... Haven't had much to do...
  4. S

    Early 2000s bf90 carb head scratcher

    I appreciate the reply and thoughts.... sometimes you need to set a job aside and spend some time thinking and hearing ideas.... I have been troubleshooting carbs a long time and these are some of the simplest which in itself can frustrate. At times thinking out loud gets a person back on track
  5. S

    Early 2000s bf90 carb head scratcher

    Well after cleaning last night and let set till today ... was able to properly set #4 this am... also may have been trying to set idle a little low .... may have been something lingering in one of the body passages..... but apparently cleared now.
  6. S

    Early 2000s bf90 carb head scratcher

    Just went thru carbs all passages cleaned reinstalled and synched. Here is confusing part .... engine runs perfect , but the idle mix screw on #4 carb has to be turned practically out to smooth the idle.... it has always been this way.... just removed and went over idle circuit again.... no...
  7. S

    Bf25 lower unit drain plug stripped

    Rethreaded to 3/8 NC... plug installed... everything good again
  8. S

    Bf25 lower unit drain plug stripped

    That will do the job
  9. S

    Bf25 lower unit drain plug stripped

    Ya been trying to find that info also ... but thinking it would be the common 1.25
  10. S

    Bf25 lower unit drain plug stripped

    This may be the answer.
  11. S

    Bf25 lower unit drain plug stripped

    On inspection there is lots of depth and thread for an extended length plug .... now just need to find one. Edit... on closer inspection... only on one side... but I see there may be a 9mm plug available to go to larger thread
  12. S

    Bf25 lower unit drain plug stripped

    How are people repairing threads on lower unit drain plug .... mine lost the threads this am
  13. S

    2000 honda bf50 starter drive.

    Update .... still have not found a drive that would for sure fit. In the mean time I pulled the drive to do measurements... and the drive felt fine as far as not feeling rough or worn .... and started thinking that the grease may have started to dry out... over 25 years old... so put it in...
  14. S

    2000 honda bf50 starter drive.

    .ya it looks like aftermarket starters are readily available in all price ranges ..... all I really need is a drive or bending.... and it looks like drives are available.... the trouble is having confidence in fit
  15. S

    2000 honda bf50 starter drive.

    Anyone have a source for starter parts.... my drive is on its way out and can't seem to locate one.
  16. S

    Early 2000 s bf50 water in oil

    Thread update. I have been using engine daily for the last week... oil is completely clear. After a few hrs use and cool down, I can remove hose and drain a couple tablespoons of water out of loop. Engine runs good and strong.... Will likely pull power head this winter and replace head gasket...
  17. S

    Early 2000 s bf50 water in oil

    So, more testing results ..... fresh oil change .... ran engine in tank for about an hr... let sit overnight and then drained a cup of oil from engine.... in that oil was about a tablespoon of clean water, so condensation.... ran again for about an hr... removed hose from valve cover to...
  18. S

    Early 2000 s bf50 water in oil

    Bought a bf50 last fall not running.... did some mechanical repairs (crank replace) Put it on an old boat and started running it at ice out engine runs flawless . As title indicates I have been getting an abnormal amount of water in oil. I do spend a lot of time idling with ocationall 1/2 the...
  19. S

    Honda BF8AH Prop Bearing Carrier

    I recently went thru the the same trouble trying to order bearing carrier for 87 bf15 ... at first they indicated that it was available, but eventually admitted it was discontinued. I ended up repairing mine .
  20. S

    Pictures

    I had some trouble last time .... turns out the files were too large... reduced size and they uploaded no problem .... just have to be patient, takes about 20 to 30 seconds per pic
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