Walbro throttle arm - RCCanada - Canada Radio Controlled Hobby Forum
RCCanada - Canada's Radio Control Hobby Forum
Large Engines Discuss Engines Used on Giant Scale Aircraft. Gas/Glow, as long as they're big!

Closed Thread
Thread Tools Display Modes
Old 04-29-2007, 05:51 PM   #1
Sonic Boomer
RCC Contributor
Sonic Boomer's Avatar
Join Date: Aug 2005
Location: Saskatoon, SK

Feedback: 0 / 0%
Posts: 303
Total Props: 0
Walbro throttle arm

       Remove this ad - become a site supporter!
I was not liking the itty bitty throttle arm on the walbro carb I mounted on the 42 Poulan conversion, so went looking for something I could adapt at the LHS. What I found was a nylon DU-BRO 1-1/4" steering arm for 5/32 Nose gear. I redrilled it to 3/16" which is the walbro throttle shaft diameter, removed the existing throttle arm and screw and mounted the steering arm in its place. I located it so as to provide a symmetrical arc of rotation, and noted the location of the set screw in the strg arm hub. I removed it again and filed a corresponding flat on the throttle shaft (brass). I cut excess material from the strg arm, remounted it and secured in position with the set screw. Voila easier to set up the throttle servo travel geometry, helps to eliminate metal to metal noise transmission, I can easily mount a ball link to the arm, etc. AND I don't have to bother with ordering one of those CNC'd metal arms from down South
Attached Thumbnails
Click image for larger version

Name:	poulan_throtltle_link_002_212.jpg
Views:	148
Size:	112.1 KB
ID:	23949   Click image for larger version

Name:	poulan_throtltle_link_003_125.jpg
Views:	117
Size:	109.3 KB
ID:	23950  
Robin Boomsma
MAAC 46821
Hub City Radio Control Club
Saskatoon, SK
Sonic Boomer is offline   Quick reply to this message.

Sponsored Links - Subscribe to remove this ad.
Old 04-30-2007, 10:20 AM   #2
RCC Supreme Contributor
I am: John Davidson
Join Date: Feb 2003
Location: Vulcan,Alberta
Radio of choice:
EVO(12), Futaba
# of RCs: ?

Feedback: 0 / 0%
Posts: 2,927
Total Props: 0
Good tip
I have been making a brass plate/arm for mine and will put one of these on the carbs of my engines. Over the years I have collected a few so that is a good use for them.
Thanks, John
John Davidson
Keep the shiny side up and the wheels down
Vulcan1 is offline   Quick reply to this message.
Old 04-30-2007, 01:26 PM   #3
I am: Mike B.
Join Date: Nov 2002
Location: Brentwood , Ontario
Radio of choice:
# of RCs: 7

Feedback: 2 / 100%
Posts: 1,519
Total Props: 2

Thanks for the tip.
SpaceCowboy is offline   Quick reply to this message.
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the RCCanada - Canada Radio Controlled Hobby Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionally, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
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:
Your Name
Your first name and last initial is required if you plan on using the forum.
Which city & province you live in. This is mandatory for classified listings.
Radio of choice?
Which radio is your current favorite to use?
Number of RC Vehicles?
How many boats, cars, planes do you own?


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
vBulletin Message

Thread Tools
Display Modes

Forum Jump

All times are GMT -5. The time now is 02:09 AM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.