Search results

  1. C

    Need help

    A distributor from an inline 6 will work on your 4 cylinder IL, if you change the distributor cap, and they are the same vintage. 1974 IL4s were the last year of the distributor models. The first 1/2 of 1979 were the last of the IL6 distributor ignitions. I am not sure the first year the...
  2. C

    Carburetor's

    Aim for 1/2 way thru the range. That is pretty much how it is done on other motor's, they just have a different range. You may want to make sure the timing pointer is accurate as well. For idle pickup timing, remember to set the throttle so the carbs are closed and ready to open. I remove...
  3. C

    Johnson 6hp 1969 model 6r 69m

    Gee, pull it with the other hand.
  4. C

    Carburetor's

    Dave is correct, but presents it in a confusing way. Idle pickup specification is what you want, not idle timing. see if your engine is in this service manual. They have newer models with CDM as well as the older ADI ignition...
  5. C

    Need a bit of help.

    The firing order is 153624. The switchboxes likely fire alternately. So one switchbox should fire 1,3,2 and the other switchbox should fire 5,6,4. Swap the switchbox wiring and see if the problem moves. If so, replace both switchboxes
  6. C

    03 mercury 2 stroke 50hp grind when in neutral??

    Disconnect the shift cable at the engine. Center the shift slider in neutral. Adjust the shift cable (control in neutral) to fit the shift slider.
  7. C

    1997 Mercury Optimax won't get on plane or stay running after first run.

    Optimax's have a belt driven compressor, as they use both fuel pressure and air pressure to drive the gasoline into the cylinders. You might check the air filter on the compressor. A Mercury Optimax mechanic can put a diagnostic device on the motor, as well as pressure gauges on the air and...
  8. C

    Carburetor's

    Is that a Mercury service manual? The Clymer and Seloc service manuals often have big mistake in their instructions. I am not an expert on your motor, but all of the other motors that I have seen with ADI ignition have a spec for idle pickup timing that is in the ATDC range. I have never seen...
  9. C

    Carburetor's

    I hope you are reading the timing specs a bit wrong. Idle pickup timing is the point when the carbs are still closed, but ready to open. You need to set the throttle to the point when the carbs are just ready to be opened by the linkage. That is when you want the 2*-6* ATDC. Double check...
  10. C

    1988 100hp mercury spark plugs

    Gee, Scotty, did you check the fuel pump diagram for leakage? That would be my first check.
  11. C

    removing lower unit from Evinrude 1958 35Hp.25034 long shaft

    I caqnnot tell if you have the gearcase off. I will assume you don't. Usually those mechanical shift motors have a hatch on the midsection, and another hatch under that in the exhaust passage. Under the second hatch is the shift rod connection. The bolts must be removed to separate the shift...
  12. C

    Trim problems

    Not all starter solenoids have a plunger that moves a gear to engage the flywheel. Most if not all outboards do not. Their solenoids simply make an electrical connection of two thick cables supplying enough power to spin the starter. The gear engages under centrifugal force. MerCruisers...
  13. C

    New at this need help

    Sometimes the number of the ign key that fits the lock is printed on the ign switch. 128 does not seem to have enough characters to be a part number.
  14. C

    ‘97 Johnson 150 Ocean Runner - Draining battery

    I would think the voltage regulator is the main suspect, provided the wiring is in good shape.
  15. C

    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    Telltale should be warm at idle and other speeds. 143* or 147* makes no difference. If you can keep your hand under it, is fine.
  16. C

    Stock plug for Evinrude 50

    I unfortunately used the two terms interchangeably, which is likely a mistake. I do not know the precise difference, but I believe the Q suppressor is the right spark plug, for the OIS (optical Ignition System, that I assume you have. Resistor plugs were first used to help stop radio...
  17. C

    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    A Merc V6 engine should never overheat at idle, if the thermostats are working properly and the waterpump impeller is good. At idle the poppit should be closed, and therefore not part of the cooling system. Mercury water pump impellers will not pump well at idle if the bottom of the impeller...
  18. C

    New at this need help

    I will assume you have one of the old MerControls that came with the motor. Those had a separate choke button, and a 5 post ign keyswitch. Newer keyswitches have a 6 post ign switch, with the new post being the choke. If you want to reuse the original control, you need to make sure you get an...
  19. C

    Stock plug for Evinrude 50

    I did not find that engine model number, however, an E50ELDE takes a Champion QL78YC, which is a Q resistor spark plug, and is pretty standard for that year and make. The way I understand it, using something other than a Q suppressor plug can impact the function of the ign system.
  20. C

    Freshwater Boat to Saltwater

    Use a good multi season ablative antifouling paint on the fiberglass. Boats can still have wax on their hulls after several years of use, so a primer for the A-F paint is a good idea. Big chunks of paint fall off on those boats that still had wax on the hull and were not primed. On a related...
Top