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    1983 70 HP Carb issue

    I hope so. But if the synchronization is off wouldn't that cause it to run poorly. I just want to make sure I am doing the sync part correctly since I have seen a few different ways to do it
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    1983 70 HP Carb issue

    The compression is between 140 and 145 on all 3 cylinders. So far I swapped the spark plugs with Champion QL77JC4 and gapped to .04. I checked spark on all 3 cylinders with a tester set to 11 mm. I rebuilt the fuel pump and replaced all the old fuel hoses with brand new hoses, fuel filter, and...
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    1983 70 HP Carb issue

    I did a little reading and I found 2 methods link and sync. One is to sync the throttle plates, Line up the roller with the mark on the cam, and then using a timing light to check timing and adjust by rotating the cam on the threaded connector. Then once on the water use the idle screw to set...
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    1983 70 HP Carb issue

    From what I understood from the manual is that you advance the throttle until the throttle roller starts to move along the cam. I did ensure that the roller lines up with the first mark on the cam when they meet. At that point the timing should be TDC. Thats what I have done on this motor. When...
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    1983 70 HP Carb issue

    I think I might have fixed it. My fuel lines were leaking so after I fixed that and ran the motor on muffs this afternoon and it seems fine now. I did follow the manual to link and sync and my timing is at TDC as the carbs start to open. I have the idle set to around 850 RPM currently but will...
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    1983 70 HP Carb issue

    I purchased a 1983 Evinrude 70 HP motor last year and have been trying to get it running in good condition. I have tried out the motor running on the water and it has bogged down as im applying throttle. I have pulled the carbs a few times to get them clean, rebuilt, and the floats set...
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