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#1
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K301 help please
Here's the situation:
I have a replacement 301 that I've never seen run for extended periods of time. I changed the oil, pulled the carb that was on it, and replaced it with a Chinese version to see if the engine was going to run. This is the engine for the 123 in the other thread. I was firing it up to adjust the hydro/brake linkage and things were going well (we have brakes now for the first time since I've owned this tractor!) but herein lies the current problem: Engine now starts up but as it warms up, it seems to "fatten up" after 2-3 min and run rich (I think ) till it finally sputters to a stop. It never backfires as an overly leaned out engine will when it craps out.
I think I have new Chinese carb I could throw at it, but it seems extremely unlikely to me that regardless of the carb, the engine behaves the same way (warm up ok, then start to stumble, then die after about 3-4 min) Coil? Condenser? I do need to check the plug. Help! When the engine first started, it would not low idle (engine speed stayed high). I set the governor per the manual and then I had a nice low idle. I've always thought 90% of small engine problems are fuel problems, and this one acts like it, but I'm at a loss as to what to try. John
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61 and 63 Originals 123 (2) 782D 106, 147, 122 102 parts It's only original ONCE!
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#2
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Adjust the points and swap in a known good coil and condenser.
Plug should read Nestles quick brown. |
#3
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As if choke doesn't fully open when it's warmed up?
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Two 125's and a 124 all with 42" decks Plow blade #2 Cart QA36 snowthower |
#4
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Exhaust restriction or blockage perhaps?
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102 |
#5
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Very good comments... let me respond to your inputs:
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61 and 63 Originals 123 (2) 782D 106, 147, 122 102 parts It's only original ONCE!
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#6
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If you take that tape off the carb it will run better...
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Up to 530 and counting... I give up updating my profile! |
#7
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Exhaust restriction as in exhaust valve heats up and begins to stick?
Did you pull the head and the valves and decarbon? |
#8
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I knew it was something simple! :-) If only........... Anyone ever run this kind of muffler successfully on something bigger than a O?
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61 and 63 Originals 123 (2) 782D 106, 147, 122 102 parts It's only original ONCE!
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#9
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I wish I had a grand solution for you but I do not.
I do however want to commend you for learning the skill of walking away when it gets frustrating. I have solved more problems walking away and thinking then fighting something. You will get it solved there is no doubt. Ken |
#10
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Check your points for pitting and burns, and indication that your condenser is going bad. If the points look good swap the coil for a known good one and see what happens.
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128 X 2, 129, 149, 1450 x 2 |
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