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  1. ct1762@gmail.com

    40hp Dead Top Cylinder

    i'd say at 85psi the leakdown would be so high it wouldn't even fire but i guess its possible.
  2. ct1762@gmail.com

    40hp Dead Top Cylinder

    an often simple but overlooked part of the carb is the tiny IDLE PICKUP TUBE! if its clogged, it cannot pick up enough or any fuel to keep the cylinder firing at idle. why its not hitting even if you squirt premix directly into the carb makes no sense, but does if its not a carb issue. your...
  3. ct1762@gmail.com

    1994 112 johnson special, blown cylinder? What now?

    2 customers dropped their motors off in my bone pile last week. both V4 xflows and both with the "misplaced" ring issue. i include a can of engine tuner with every rebuild and forbid them to use any fuel older than 6 weeks:)
  4. ct1762@gmail.com

    Gas - Oil Mixture on old Evinrudes outboards

    correct. but once mixed ive observed it seems to stay mixed for as long as you should be using the fuel. that guy was saying it needs to be mixed periodically, which i had never needed to do in 40 years. maybe air cooled oil is different, or ancient automotive oil used to settle, hence his...
  5. ct1762@gmail.com

    Gas - Oil Mixture on old Evinrudes outboards

    one guy claimed oil settles to the bottom of the tank!
  6. ct1762@gmail.com

    Gas - Oil Mixture on old Evinrudes outboards

    its weird the 4hp motors with bronze bearings all 'round... ive had 3 in a row at my shop a few years ago all with shot/scored/melted bearings from lack of lube. all 3 were 1971/72 models and nearly identical damage. owners swear they used good tcw3 but at 50:1. still scratching my head on those!
  7. ct1762@gmail.com

    2-GT 200 Johnsons

    aren't both 20'' motors? or are you saying there is some sort of aftermarket 5'' extension? pics?
  8. ct1762@gmail.com

    2-GT 200 Johnsons

    would one need the shim tool when changing driveshafts or not if you re-use the old pinion? ive always wondered about that as manual says any changes to pinion or bearing housing/drive shaft and it all needs a fresh shimming.
  9. ct1762@gmail.com

    1999 Force/Merc 75HP 3 Cylinder 2-Stoke Rough Running Issues

    its funny i am doing the exact same force 3 cyl motor - rare bird as its basically a 90hp with different jets. anyway i also noticed the needles have trouble coming off their seats. i jammed a pen brush on my dremel and got the hole super clean. then carb cleaner squirt. seals perfectly just...
  10. ct1762@gmail.com

    Top speed??

    true
  11. ct1762@gmail.com

    Evinrude 20 Poor Water Flow

    usually leaking or missing diverters will cause it to overheat midrange-top end so still think you've got a chunk of something or oxidation related blockage from the water inlet hole at bottom of block into exhaust but i guess its possible it would overheat this way. as long as diverters can be...
  12. ct1762@gmail.com

    Top speed??

    confused or just hit the wrong reply?
  13. ct1762@gmail.com

    Finding information on my mysterious Evinrude 4hp...

    the amount of seized on impellers and snapped/stuck screws every outboard tech needs to remove each year is depressing, as that means the previous or current owner was so lazy they couldn't be bothered. these are the same people that then blame the motor manufacturer, almost invariably.
  14. ct1762@gmail.com

    1978 70HP Evinrude Fuel Pump

    the old pumps with the valves were and are nearly indestructible. unless they are stuck or rusted, you can expect zero issues. just poke and pull them a teensy weensy bit to make sure they move. Racer mentioned exhaust plate gaskets leaking. the whole thing gets very hot and is in 3 separate...
  15. ct1762@gmail.com

    Evinrude 20 Poor Water Flow

    it sounds like you have a chunk of rubber blocking either the water inlet (goes into exhaust 1st) or exit by the head. but really only way to fix is to remove the powerhead. did you shoot compressed air into the water/indicator hose, into the copper water tube, and up into the exhaust (motor...
  16. ct1762@gmail.com

    Top speed??

    the 1983 15hp models are rated 6500-7000rpm. The 9.9's are something like 5500-6500 meaning you MUST be turning 6500rpm or so minimum to make 15hp with that tuned exhaust or you might as well be running a 9.9. I'd start with a 9'' or 10'' pitch prop. you could have a 12'' on there for all we...
  17. ct1762@gmail.com

    Backup temperature gauge+sensor (digital)

    if you are in a clean fresh lake, no issues. if you are like me and boat in super weedy shallow saltwater, we get alarms all over the place! but the other way an outboard overheats is far more common than loss of water pressure: thermostats stuck closed. or almost as bad (for a longer period)...
  18. ct1762@gmail.com

    1978 Johnson-Evinrude Electrical Issue

    sounds like you ruled everything out but the key switch
  19. ct1762@gmail.com

    Lower units compatible w/ 1999 Evinrude Ficht 175

    the 150-175hp 60 degrees will fit (1991-up), carbed or FICHT i believe. maybe a simple shift shaft swap on some years. the big 3.0 200-250hp v6 will not fit. different driveshaft.
  20. ct1762@gmail.com

    Johnson 1995 70hp no spark

    these are cranking tests. might be hard to start without spark:)
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