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This post suggests that the engine you have is an 143.676222:
According to my Tecumseh Technician's Handbook, 143.676222 is a Tecumseh HM80-155129D. Judging by the aluminum recoil starter and the choke knob by the flywheel cover on the left, this is probably a late 70s vintage snowblower. If you remove the electric starter switch (#3 below), you will likely find the model number stamped underneath it:
View attachment 206568
If it is a Tecumseh 143.67622, the carburetor for that engine is 631957B. That carburetor is still available new, but as a "service carburetor." What I mean by that is you'll need to reuse some of the parts from the original carburetor like the choke butterfly valve and shaft. Here's a pic of a 631957B:
View attachment 206569
It looks to be similar dimensionally to the ubiquitous $12-15 aftermarket carburetors for 8-10 hp Tecumseh engines, p/n 632334A:
View attachment 206571
Take a look at your old carb and see if you'd be able to remove the choke shaft and butterfly to reuse it. If so, I'd start with an aftermarket 632334A and see if you can swap out the choke parts.
For what it's worth, I occasionally convert those 70s HM80s to the newer 90s throttle and choke lever design, if I find that the engine has good compression. Here are a few that I've converted:
View attachment 206573
The benefit of this conversion is that you no longer have to rely on a remote mounted throttle lever, and the cheap adjustable carburetors drop right in (you will have to drill a hole on the carburetor cover for the choke shaft to poke through):
Hemi swap on a 924 series, but with a small twist
This 924039 now has the spare wheels with X-Tracs installed. The rims themselves are a bit crusty, but they hold air and the X-tracs have had minimal use under my ownership. I may install a taller chute at some point, and I still need to free up the differential lockout hub.
THANK YOU for your prompt and detailed reply, sorry for the delay in responding. I'm not opposed to the china carb since other carbs are as much as I paid for the unit years ago ....and all i did was clean that green out of the bowl. I did go look on the top for more info and at first I missed it but after closer inspection of the photo the number are in fact there, I need to go back and take a rubbing of it.This post suggests that the engine you have is an 143.676222:
According to my Tecumseh Technician's Handbook, 143.676222 is a Tecumseh HM80-155129D. Judging by the aluminum recoil starter and the choke knob by the flywheel cover on the left, this is probably a late 70s vintage snowblower. If you remove the electric starter switch (#3 below), you will likely find the model number stamped underneath it:
View attachment 206568
If it is a Tecumseh 143.67622, the carburetor for that engine is 631957B. That carburetor is still available new, but as a "service carburetor." What I mean by that is you'll need to reuse some of the parts from the original carburetor like the choke butterfly valve and shaft. Here's a pic of a 631957B:
View attachment 206569
It looks to be similar dimensionally to the ubiquitous $12-15 aftermarket carburetors for 8-10 hp Tecumseh engines, p/n 632334A:
View attachment 206571
Take a look at your old carb and see if you'd be able to remove the choke shaft and butterfly to reuse it. If so, I'd start with an aftermarket 632334A and see if you can swap out the choke parts.
For what it's worth, I occasionally convert those 70s HM80s to the newer 90s throttle and choke lever design, if I find that the engine has good compression. Here are a few that I've converted:
View attachment 206573
The benefit of this conversion is that you no longer have to rely on a remote mounted throttle lever, and the cheap adjustable carburetors drop right in (you will have to drill a hole on the carburetor cover for the choke shaft to poke through):
Hemi swap on a 924 series, but with a small twist
This 924039 now has the spare wheels with X-Tracs installed. The rims themselves are a bit crusty, but they hold air and the X-tracs have had minimal use under my ownership. I may install a taller chute at some point, and I still need to free up the differential lockout hub.
hated to sand it but too much rust and paint obscuring the #'sThis post suggests that the engine you have is an 143.676222:
According to my Tecumseh Technician's Handbook, 143.676222 is a Tecumseh HM80-155129D. Judging by the aluminum recoil starter and the choke knob by the flywheel cover on the left, this is probably a late 70s vintage snowblower. If you remove the electric starter switch (#3 below), you will likely find the model number stamped underneath it:
View attachment 206568
If it is a Tecumseh 143.67622, the carburetor for that engine is 631957B. That carburetor is still available new, but as a "service carburetor." What I mean by that is you'll need to reuse some of the parts from the original carburetor like the choke butterfly valve and shaft. Here's a pic of a 631957B:
View attachment 206569
It looks to be similar dimensionally to the ubiquitous $12-15 aftermarket carburetors for 8-10 hp Tecumseh engines, p/n 632334A:
View attachment 206571
Take a look at your old carb and see if you'd be able to remove the choke shaft and butterfly to reuse it. If so, I'd start with an aftermarket 632334A and see if you can swap out the choke parts.
For what it's worth, I occasionally convert those 70s HM80s to the newer 90s throttle and choke lever design, if I find that the engine has good compression. Here are a few that I've converted:
View attachment 206573
The benefit of this conversion is that you no longer have to rely on a remote mounted throttle lever, and the cheap adjustable carburetors drop right in (you will have to drill a hole on the carburetor cover for the choke shaft to poke through):
Hemi swap on a 924 series, but with a small twist
This 924039 now has the spare wheels with X-Tracs installed. The rims themselves are a bit crusty, but they hold air and the X-tracs have had minimal use under my ownership. I may install a taller chute at some point, and I still need to free up the differential lockout hub.
This post suggests that the engine you have is an 143.676222:
According to my Tecumseh Technician's Handbook, 143.676222 is a Tecumseh HM80-155129D. Judging by the aluminum recoil starter and the choke knob by the flywheel cover on the left, this is probably a late 70s vintage snowblower. If you remove the electric starter switch (#3 below), you will likely find the model number stamped underneath it:
View attachment 206568
If it is a Tecumseh 143.67622, the carburetor for that engine is 631957B. That carburetor is still available new, but as a "service carburetor." What I mean by that is you'll need to reuse some of the parts from the original carburetor like the choke butterfly valve and shaft. Here's a pic of a 631957B:
View attachment 206569
It looks to be similar dimensionally to the ubiquitous $12-15 aftermarket carburetors for 8-10 hp Tecumseh engines, p/n 632334A:
View attachment 206571
Take a look at your old carb and see if you'd be able to remove the choke shaft and butterfly to reuse it. If so, I'd start with an aftermarket 632334A and see if you can swap out the choke parts.
For what it's worth, I occasionally convert those 70s HM80s to the newer 90s throttle and choke lever design, if I find that the engine has good compression. Here are a few that I've converted:
View attachment 206573
The benefit of this conversion is that you no longer have to rely on a remote mounted throttle lever, and the cheap adjustable carburetors drop right in (you will have to drill a hole on the carburetor cover for the choke shaft to poke through):
Hemi swap on a 924 series, but with a small twist
This 924039 now has the spare wheels with X-Tracs installed. The rims themselves are a bit crusty, but they hold air and the X-tracs have had minimal use under my ownership. I may install a taller chute at some point, and I still need to free up the differential lockout hub.
I just want to say thanks to all for the help in advise on my snow-blower .....I bought the CHINA carb (oh the humanity) from AMAZON, Panari HMSK80 Carburetor for Tecumseh HM70 HM80 The choke swapped right out like they both were made yesterday (one being 40 years old one being new) after a few minor adjustments it was purring right along. Had to wait for a little snow, but NEVER wishing for it the snow arrived today so i came home an dragged into the cold and it fired right up !! I let it warm for a few and went to town on some heavy wet snow !! I did buy the carb kit in case the china carb was crap but I have 2 exact machines so it'll go into the stock drawer. Amazing for 18 bucks you get a filter, on/off gas valve, primer bulb, spark plug and a CARBURATOR !!
I wish i could say there was all kinds of craftmanship and improvisation to show off but actually it was as simple as removing the butterfly screw slide out the shaft, slide in the old one and everything was dead on as the original. I have all the cover all on now and its unpleasant to take on/off .....all twisted and screws not factory.
