5hp Sears?? Sears brands had more Tecumsehs than Briggs engines. One quirk was carb main jet vent hole on side of jet assembly would often be fouled from winter storage. Good news is it was simple to clean. Try a 16/1 2 stroke mix in spark plug hole for prime--or a teaspoon of plain oil to lube rings, get compression up for first start. Clutch squeal? Square drive without engaging fingers? That seems more a Briggs design- either way a spray of WD40 quiets a lot of things that can"t be disassembled quickly. Fuel? Plain unleaded regular is first choice, unleaded premium much preferred over E10 mixs- the Ethanol mixs foul carbs and have short shelf/tank life. As I noted - 2 stroke premix is good for first tank of season, about a 50/1 ratio in fuel tank for ring freeing, valve stem lube, general rust prevention. Spray Gumout in carb throat for preliminary cleaning helps if not disassembling and cleaning carbs- float bowls tend to get some crud in over winter so good idea to at least remove bowl and clean, blast main jet at same time. RN
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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