1970's carb adjustment - Snowblower Forum : Snow Blower Forums
 
LinkBack Thread Tools
post #1 of 3 Old 03-03-2015, 07:41 PM Thread Starter
Junior Member
 
Join Date: Mar 2015
Posts: 1
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
1970's carb adjustment

hi guys, i have a70 5hp ariens sno blower that i've owned since it was new. i am hoping to start using it again as its been sitting for 5 years or more. i took the carb apart and cleaned it. i got it running but its not right rpms will go up then down then climb again. i was also wondering about the carb adjustments, the air screw on the side and the one under the fuel bowl. thanks
rob in nh is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 03-03-2015, 09:40 PM
Super Moderator
 
Kiss4aFrog's Avatar
 
Join Date: Nov 2013
Location: Hudson, WI
Posts: 9,138
Post Thanks / Like
Thanks (Given): 510
Thanks (Received): 681
Likes (Given): 3844
Likes (Received): 1479
Garage
Sounds like you need to clean it again. Usually that "hunting" is a sign it's running lean and on an older adjustable carb like yours that would indicate it's gummed up inside.


.
Make sure the windows are up before the snow plow goes by !!

Please help keep the lights on by subscribing:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Kiss4aFrog is offline  
Post Thanks / Like - 1 Thanks, 0 Likes, 0 Dislikes
Thanks gsnod thanked for this post
post #3 of 3 Old 03-04-2015, 08:56 AM
Senior Member
 
Join Date: Feb 2014
Posts: 864
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 17
Likes (Given): 0
Likes (Received): 79
Quote:
Originally Posted by rob in nh View Post
hi guys, i have a70 5hp ariens sno blower that i've owned since it was new. i am hoping to start using it again as its been sitting for 5 years or more. i took the carb apart and cleaned it. i got it running but its not right rpms will go up then down then climb again. i was also wondering about the carb adjustments, the air screw on the side and the one under the fuel bowl. thanks

you have to carefully clean the tiny metering holes in the main jet, they are as tiny as a pin, that feeds the idle. they are usually plugged or partially blocked. also every single passage and air bleed must be carefully cleaned out.

the adjustment to start with is 1.5 turns on main jet and idle mix, but then it has to be tweaked to each engine demands. there's no magic setting.

you have to turn it while running at idle, then at wide open, and adjust it

like this




just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines
greatwhitebuffalo is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in













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