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#1
08-14-2011, 02:43 PM
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128 not running need help
What it does is it will not run without the choke and runs rich. I have a new carb on it. I cleaned it and checked the seat and checked the timing it is dead on. I adjusted the valves back to spec. Intake 8 thousandths, EX. 18 thousandths. Here is the link of the vid of it running. www.youtube.com/watch?v=aVENHc9g_tY
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1971 128,3pt,ags,rebuilt motor,headlights 1988 1812,dual ports 1966 122,creeper,3pt,ags,sa,headlights,restored 1st place at RPRU 2013 1966 123,3pt,brinly spring assist 1973 108 1968 125 Attachments:QA36A,wfblade,2 nf blades,brinly disc,a cultivator,plow,homemade wrecker boom with 2000lbs winch,ih weights,50lbs weights,2IH windbreakers 
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#2
08-14-2011, 03:13 PM
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Quote:
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#3
08-14-2011, 03:18 PM
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'will not run without the choke and runs rich' is a contradiction. 'New carb' as in one of those worthless non-adjustable Walbro carbs?
Unless you mis-typed your valve lash numbers, those are completely wrong.
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#4
08-14-2011, 04:14 PM
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Quote:
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1971 128,3pt,ags,rebuilt motor,headlights 1988 1812,dual ports 1966 122,creeper,3pt,ags,sa,headlights,restored 1st place at RPRU 2013 1966 123,3pt,brinly spring assist 1973 108 1968 125 Attachments:QA36A,wfblade,2 nf blades,brinly disc,a cultivator,plow,homemade wrecker boom with 2000lbs winch,ih weights,50lbs weights,2IH windbreakers
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#6
08-14-2011, 04:40 PM
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Mrgiterdone you are probably allright on your adjustment. I watched the youtube video. The way you have it wrote is 80thou and 180thou. You forgot to add zeros after the decimal point. I would also check your head gasket. A blown head gasket will give it the same symptoms. Did you reuse the carb gasket when you put on the new carb? Old gasket could possibly be damaged. And the last thing did you have the motor in the right place when you set the valves?
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1641, 1541, 682 with 18hp command engine and hydraulics from a 782. 1872 with a power angle blade.
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#7
08-14-2011, 07:45 PM
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Quote:
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1971 128,3pt,ags,rebuilt motor,headlights 1988 1812,dual ports 1966 122,creeper,3pt,ags,sa,headlights,restored 1st place at RPRU 2013 1966 123,3pt,brinly spring assist 1973 108 1968 125 Attachments:QA36A,wfblade,2 nf blades,brinly disc,a cultivator,plow,homemade wrecker boom with 2000lbs winch,ih weights,50lbs weights,2IH windbreakers
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#8
08-14-2011, 11:25 PM
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I readjusted the valves. They were way out of spec. The book said to put the motor TDC. I put the T on the flywheel in the sighthole then adjusted them is that right?I'll try to start it 2mro.
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1971 128,3pt,ags,rebuilt motor,headlights 1988 1812,dual ports 1966 122,creeper,3pt,ags,sa,headlights,restored 1st place at RPRU 2013 1966 123,3pt,brinly spring assist 1973 108 1968 125 Attachments:QA36A,wfblade,2 nf blades,brinly disc,a cultivator,plow,homemade wrecker boom with 2000lbs winch,ih weights,50lbs weights,2IH windbreakers
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#10
08-16-2011, 05:56 PM
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do you have a good flow of gas to the carb ? and good new gas ? will it start and run for a few seconds ? would it run if the choke was set half way . throttle open wide? at carb. that might explain needs choke to run and runs rich . you adjust the valve clearance after the cam has opened & shut the valve
128 owner myself
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