Model 247.887801 - Snowblower Forum : Snow Blower Forums
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post #1 of 20 Old 08-27-2019, 12:48 PM Thread Starter
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Model 247.887801

I just bought this at an estate sale and it looks to be brand new. First, can I tell the manufacture date from the serial number? Sears site says I have to go to a store and their chat is always offline. Second, it only ran on full choke and smoked and ran rough but I took a chance as I figured it was from lack of use. I changed gas and cleaned the carb bowl which was pretty gunky and a rusty, probably from lack of use. It runs great now but still needs to be at about 1/2 choke. I need advice. 1: just leave it and run it at 1/2 choke or 2: buy a carb. New OEM's are about $50-$60 and aftermarkets are about $20. I suspect some of the gunk got thru the carb and a new aftermarket carb seems easier than cleaning and a kit. Any thoughts would be appreciated. Thank you, Mark
It's a 21 inch 179cc 4 cycle OHV
ser # 1I011B60479 The 0 after the I may be the letter o?
Model # 247.887801
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Last edited by Hawg; 08-27-2019 at 12:52 PM. Reason: bad photo
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post #2 of 20 Old 08-27-2019, 01:21 PM
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go aftermarket
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post #3 of 20 Old 08-27-2019, 04:19 PM
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Welcome to SBF Hawg. According to the partstree website, your Craftsman is a 2011 model. Below are links to an ebay replacement carb and the MTD engine service manual.


ebay replacement carb-


https://www.ebay.com/itm/Carburetor-for-MTD-Cub-Cadet-Troy-Bilt-951-12704B-951-14028A-Stens-520-860-265-J/223605420629?hash=item340febf255:g:feEAAOSwM81dQDA m

MTD engine manual-



http://service.mtdproducts.com/Training_Education/769_04015_01_Small_bore_horizontal.pdf

Toro 8/24 (38080) 1989
Toro 721-QZR (38743) 2015 (Hemi Predator Power)
Toro (51984) Hand Held Blower (For the light stuff)

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post #4 of 20 Old 08-27-2019, 07:34 PM
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If you want the knowledge/experience, rebuilding or simply cleaning the old carb is not that hard and takes little time. There are a dozen or more videos on youtube of how to do it, in a "quick & dirty" cleaning you don't even have to take it off the engine, takes five minutes, and might be all it needs. Best of all, it's free!

Otherwise, just get the cheap one off eBay and you're done.
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post #5 of 20 Old 08-27-2019, 07:47 PM Thread Starter
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Iíve done many, $15- $20 for an aftermarket is easier. If it doesnít come off itís just a spray job and thatís not going to get gunk out of the inside.

Last edited by Hawg; 08-27-2019 at 08:58 PM.
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post #6 of 20 Old 08-27-2019, 08:58 PM Thread Starter
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Thank you Grunt.
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post #7 of 20 Old 08-28-2019, 07:47 AM
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Quote:
Originally Posted by Hawg View Post
I just bought this at an estate sale and it looks to be brand new. First, can I tell the manufacture date from the serial number? Sears site says I have to go to a store and their chat is always offline. Second, it only ran on full choke and smoked and ran rough but I took a chance as I figured it was from lack of use. I changed gas and cleaned the carb bowl which was pretty gunky and a rusty, probably from lack of use. It runs great now but still needs to be at about 1/2 choke. I need advice. 1: just leave it and run it at 1/2 choke or 2: buy a carb. New OEM's are about $50-$60 and aftermarkets are about $20. I suspect some of the gunk got thru the carb and a new aftermarket carb seems easier than cleaning and a kit. Any thoughts would be appreciated. Thank you, Mark
It's a 21 inch 179cc 4 cycle OHV
ser # 1I011B60479 The 0 after the I may be the letter o?
Model # 247.887801
Welcome to forum, Hawg. Add some Seafoam to your full tank and run it for 15 - 20 minutes. It may help, good stuff!

Jack of all trades, Master of none!
Ariens - 924086 - ST1028
Craftsman - 88934 - 10HP 28"
Toro - CCR 3650
Toro - CCR 2000
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post #8 of 20 Old 08-28-2019, 11:43 AM Thread Starter
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I tried that yesterday with Star Tron. I think $20 is pretty cheap to be done once and for all. I was surprised that Parts Tree had this as a 2011 manufacture date. Thing looks brand new. Thatís probably why the carb bowl was this dirty, it sat too long without use. I should try combustion cleaner but these carbs are so cheap you just donít know if you dissolve something.
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post #9 of 20 Old 09-11-2019, 02:42 PM Thread Starter
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Now I,m stumped! New carb, new plug, new gas, new gas line, new gas filter and it still only runs on almost full choke just like before. All my effort got zero results. Any ideas?
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post #10 of 20 Old 09-11-2019, 03:33 PM
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Running with the choke closed most of the way indicates a VERY LEAN mixture to the engine.

Do you have a good flow of fuel through the shut off valve on the tank?


Are you sure the intake manifold isn't cracked or the intake or carb gaskets aren't leaking air?
Spraying carb cleaner around the mating surfaces with the motor running and hearing a change in engine tempo will show where an air leak is.


How is the engine compression?


Remember also, although rare, a new carb doesn't necessarily mean a GOOD carb.

Toro 8/24 (38080) 1989
Toro 721-QZR (38743) 2015 (Hemi Predator Power)
Toro (51984) Hand Held Blower (For the light stuff)

Experience is something you don't get until just after you need it.
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