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#1
04-03-2011, 12:18 AM
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123 shaking woes
Over the winter I redid my 123. I rebuilt the engine, new rod, piston, rings, valves and gasket set. The engine timing is set perfect, and the carb is set to stock (2 main, 2 1/2 idle)
At current the engine is incredibly hard to start, extremely picky. It used to start extremely easy, without choke even. Now it will fire, spin faster... Then slow down and do it again. I have to fiddle with the throttle and choke to get it to work. And.. It won't start the same way twice. Once it gets running it is extremely shaky. It used to be silky smooth , now my teeth are sharper. I'm confused as to what could be causing these issues. Any ideas?
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Tyler Chiliak. Southeast Alberta Canada. My dad and I own, 1650, , 1450, 1250, 1250, 1200, 982, 782, 149, 149, 149, 128, 128, 123, 100, 100. Also a 1310, 1500, and 2 1600 IHC trucks. 
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#3
04-03-2011, 10:06 AM
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Hmm... But wouldn't the timing of the ignition be off as well? If I take off the head, the intake and exhaust valve should both lift at tdc right?
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Tyler Chiliak. Southeast Alberta Canada. My dad and I own, 1650, , 1450, 1250, 1250, 1200, 982, 782, 149, 149, 149, 128, 128, 123, 100, 100. Also a 1310, 1500, and 2 1600 IHC trucks.
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#4
04-03-2011, 10:22 AM
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Tyler just a thought could the flywheel key have fallen out when installing the flywheel. The flywheels are balanced to the rest of the rotating assembly I believe.
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#5
04-03-2011, 10:55 AM
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Tyler,
My 149 does the exact same thing. If I open the carb settings up past specs then it doesn't do that anymore, but instead it backfires, fouls the plug, etc. I think I will be doing a carb rebuild on it. Try adjusting your settings and open up your fuel intake. I constantly have to fiddle with my settings and it bothers me to have the down time. Did you rebuild your carb, too? Cub Cadet 123
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Still don't know what I'm doing in OHIO?.....If you find me, then please point me back toward INDIANA. 
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#6
04-03-2011, 11:31 AM
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Yes I've gon through the carb as well. Twice actually. Once when I got this thing a year or so ago, and once about a month ago. I will work with the carb settings a bit
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Tyler Chiliak. Southeast Alberta Canada. My dad and I own, 1650, , 1450, 1250, 1250, 1200, 982, 782, 149, 149, 149, 128, 128, 123, 100, 100. Also a 1310, 1500, and 2 1600 IHC trucks.
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