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  1. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    Interesting, had the boat out yesterday, had to adjust the idle mix screws back to 3/4 off stop to get it to run right and then it ran great, starts right up, no lean sneeze, excellent throttle response and correct top speed. But the NGK BUHX plugs must be too much for the ignition cuz now it...
  2. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    I must say after many hours of troubleshooting and dragging my but back to the dock I think I'm ready for a simple fix. Just replace or clean the plugs more often. Plus, I am convinced it has something to do with the design of my old 4 cylinder 2 stroke. It does seem like some of the chronic...
  3. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    It's fascinating how many different opinions there are on plugs fouling on 2 stroke outboards. I am from the 70's and remember how tricky it was to get an old 70's carbureted motor to purr. If you did get it purring it wouldn't last. It seems like you where always tinkering especially when the...
  4. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    I just put in NGK BUHX plugs, the ones with the "boost gap", we'll see if they help.
  5. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    Last time out it looks like my plugs are still fouling. Very frustrating, Seems unsolvable. 1 turn out on the idle mixture screws, carbs are clean and synced, ignition is right with new points, new coil and timing is right, recir system seems right, compression is between 137-140. Some say they...
  6. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    So it sounds like it's a common problem from the factory with this motor. I'll have to experiment with how long it will take to run the motor till the float bowls empty out. I already have a fuel shut off valve so after the boat is load I could shut off the fuel and let it sit and run a little...
  7. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    2 new developments, I cleaned the fuel recirculation system and reset the idle mix screws and now it idles very nicely with minimal fouling. Also, when it's warm out while out on the lake moving from spot to spot it starts right up with just a little tap of the ignition switch. So I'm loving...
  8. WinnerCougar74

    Fouling spark plugs

    Nordin, this suggestion fixed it so far. The recirc screens had carbon on them (see attached pic). I cleaned it all up, put new gaskets on and immediately the idle was higher and so far after idling that would have fouled it before there is no sign of it. It seems to have better throttle...
  9. WinnerCougar74

    Tachometer for 1974 135hp

    Here is the followup to this original post about tachometers. An automotive tach will work. I installed a $30 tach that was adjustable. I attached it to the normal tach location on the ignition switch and it works. No need for an expensive marine unit. Prolly because my motor has a distributor...
  10. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    Seems like most people that own these motors say it's hard to kill them. In the last 5 years the biggest expense was a starter. Otherwise I have a box with the following parts in it. Fuel pumps diaphragms, distributor belts, spark plugs, points, water pump parts, impeller, lots of difference...
  11. WinnerCougar74

    Most common problems with 4 cyl / 3cyl chrysler outboards

    Hello, I would like my 1974 Chrysler outboard to last. It seems like one of the biggest challengs is finding parts. So I would like to plan ahead and start looking for various parts that are known to be needed. Please post things on the 4 cylinder and 3 cylinder (since they share many things...
  12. WinnerCougar74

    Chrysler engine overheating

    My 1974 135hp had a rubber grommet where the pipe fits into the water pump housing. I changed it to the newer white plastic type that kind of funnels the the pipe into the right place. It fits nice a snug now. Also the thermostat housing is easy to remove to check it all out.
  13. WinnerCougar74

    Do 1 piece lower ends fit older motors that came with the 2 piece

    Will the 1 piece lower ends fit the outboards that came with the 2 piece lower ends? I have a 1974 135hp Chrysler outboard. I would like to buy a parts motor. I have heard the 1 piece lower end is much better.
  14. WinnerCougar74

    Why would the electrode on a spark plug get smashed

    How's this for a possible explanation. A piece of carbon deposit came loose and got between the plug and the piston. Now that seems likely.
  15. WinnerCougar74

    Why would the electrode on a spark plug get smashed

    If the plug was too long it does not seem like it would have run fine for most of the day but get smashed on the way back to the dock during an extended run at around 4000 rpms. None of the other plugs got smashed at all. There does not seem to be any slop in the piston, rod or crank. That...
  16. WinnerCougar74

    Winner manufacturer and parts

    There is some very interesting information on this website. I got it from the patent# on the back of the hull. It shows wood in the floors. From what I can tell it's 1/2" plywood with fiberglass on the top and bottom on the floor. The transom seems like it has 3/4" plywood. My boat has plywood...
  17. WinnerCougar74

    Best gasoline octane for old Chrysler Outboards

    Yes all good points Redbarron. There is a really good video on YouTube on the Project Farm channel where he tested gas with ethanol and the non ethanol (REC) gas with and without fuel stabilizer. He found the stabilizer did not eliminate corrosion on aluminum parts with the ethanol gas. Also the...
  18. WinnerCougar74

    Best gasoline octane for old Chrysler Outboards

    The perfect question Redbarron. So far here's my math. It's a word problem. My favorite kind of math. Of course these are all theoretical figures. If I take one 20 mile boat trip exery week for 6 months (26 trips) and pay $4.50 a gallon for REC gas that would cost $1170 @ 2 mpg $720 @ 3 mpg and...
  19. WinnerCougar74

    Best gasoline octane for old Chrysler Outboards

    This is likely a no brainer but here goes. RECreational gas seems to be best for these old motors primarily because it's non-ethonol. Where I live REC gas octane rating is 90. My Clymer manual says you can run 87 in an old Chrysler. Of course the 87 around here is 10% ethanol so I have some...
  20. WinnerCougar74

    Is this normal wear on a distributor belt?

    Look at what I found on ebay. just got them today for Canada.
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