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    Timing on an old merc ?

    Can anyone give me some info on checking the timing on a 1975 merc 9.8? Serial # is 4084137. It had a degree spec on the flywheel, but it wore off. Do I need a timing light or guage of some sort. I know I need a repair manual, but I'm laid off and they cost about 100 boxes of mac n cheese !:(
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    Carb question 1975 Merc 9.8

    I'm troubleshooting a 1975 Merc 9.8. I believe I found some gasket material in one of the jets, but after I reassembled the carb I tried blowing air through the carb with the float up and down. I can do it but it takes more pressure then I expected. It's been a while since I've done this on a...
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