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Lawnmower starting issue
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<blockquote data-quote="Motor Mouse" data-source="post: 489102" data-attributes="member: 703"><p>Interesting! B&S uses a plastic carb on many of there smaller motors. No adjustment. What usually happens is the emulsion tub or jet clogs up. They are terribly finicky but that wouldn’t cause a rich condition. Unless if the jet is good and emulsion tube is partially clogged so the air is not atomizing the gas like it should? Talking a little out of my butt here. Not sure?</p><p></p><p>What I do see a lot is engines that run too lean. Lawn Boy Duraforce engines are a good example. First I ultrasonic clean the carbs and then drill the main jet one size up. Smooths them right out and they run better than new! </p><p></p><p>If you figure the rich condition out please let me know .</p></blockquote><p></p>
[QUOTE="Motor Mouse, post: 489102, member: 703"] Interesting! B&S uses a plastic carb on many of there smaller motors. No adjustment. What usually happens is the emulsion tub or jet clogs up. They are terribly finicky but that wouldn’t cause a rich condition. Unless if the jet is good and emulsion tube is partially clogged so the air is not atomizing the gas like it should? Talking a little out of my butt here. Not sure? What I do see a lot is engines that run too lean. Lawn Boy Duraforce engines are a good example. First I ultrasonic clean the carbs and then drill the main jet one size up. Smooths them right out and they run better than new! If you figure the rich condition out please let me know . [/QUOTE]
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