Tecumseh Hm80 Carb questions - Snowblower Forum : Snow Blower Forums
LinkBack Thread Tools
post #1 of 4 Old 11-25-2010, 11:31 AM Thread Starter
Junior Member
Join Date: Nov 2010
Posts: 1
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Smile Tecumseh Hm80 Carb questions

I am trying to get a John Deere 827 snow thrower running good again and have run into a problem with the idle speed & carb adjustment. It's been years since I touch one of these.

Here's what I have It start and runs quickly, it doesn't want to idle and any movement of the throttle will kill it. If I am quick enough with the primer bulb I can give it a push and it will keep running. It had some old gas in it from the previous owner, I did take out the idle screw and the float bowl and clean things up, without removing the carb. I have good fresh gas w/o enthanol. I did find the primer hose bad on the end so I cut the bad part off. Are there parts inside that previous ethanol runied?
What is the proper adjustment of the needle valves? Is it the idle on the side? Main on the bottom?

I am thinking it might be best to get a rebuild kit for the carb and do it right. (I would like to do this now will it is warmer out than below frezzing temps)

Thanks in advance

bigangelman is offline  
Sponsored Links
post #2 of 4 Old 11-25-2010, 06:53 PM
Join Date: Oct 2010
Location: Laconia,N.H.
Posts: 91
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
It had old gas in it so the inside of the carb is varnished up and will need a soaking in a carb cleaning solution. Adjustment on both screws is 1-1/2 turns out from lightly seated. The main jet is the 1 on the bottom of the bowl. You can try to take that out and clean ALL the holes in using a small wire and spray carb cleaner. There may be a tiny hole in the threads, so look closely and use a magnifing glass if needed. This small hole is missed by so many and is the 1 that causes most of the problems.
indypower is offline  
post #3 of 4 Old 11-25-2010, 11:44 PM
Super Moderator
bwdbrn1's Avatar
Join Date: Nov 2010
Location: Upper Peninsula, MI Near Manisitque
Posts: 3,149
Post Thanks / Like
Thanks (Given): 553
Thanks (Received): 238
Likes (Given): 584
Likes (Received): 606
You think like I do. I got out and worked on mine before the temps dropped too much also.

Here's a manual on Techcumseh L heads, including everything, and more, you'd ever want to know about their carbs.

bwdbrn1 is offline  
post #4 of 4 Old 11-28-2010, 12:48 PM
Junior Member
Join Date: Nov 2010
Posts: 12
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
you can get a whole new carb for $50

I am in the same boat as you, but I have decided to buy a new carb. Usually I would just install a kit, but I found a place on ebay where I can get a whole new carb for $50, and I'll keep the old one for parts. here is a link to the carb I bought, maybe it will work for your model as well, but if you dont know, just ask the seller and they can tell you what carb you need for your particular motor. John Deere TRS26 TRX26 TRS27 TRS32 826 832 1032D Carb - eBay (item 230537098383 end time Dec-10-10 09:00:05 PST)
jdtrs27 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Snowblower Forum : Snow Blower Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome