O.S. Engines Support Ask Bill Baxter your questions about O.S. Engines.

OS. 21 tm

Old 06-15-2017, 03:19 PM
Junior Member
Thread Starter
Join Date: Jun 2017
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default OS. 21 tm

Hi I'm a older man done purchased me a toy ( 1/10 scale truck) the carburetor needs to be adjusted. I tried the old Briggs setting all in 1and a 1/4 out. Got it running but just halfass can someone please tell me a good starting place for the jets.. the truck has a OS21tm with a slide 3 jets carb. Any help I will be so great full . Thanks. [email protected]

Last edited by CRUNK 007; 06-15-2017 at 05:35 PM. Reason: To add contact address
Old 06-16-2017, 10:06 AM
My Feedback: (11)
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,483
Likes: 0
Received 6 Likes on 5 Posts

Page 22 of the instruction manual details how to set the carb back to the initial starting points. Start the high-speed needle should be at about 2 turns out from closed.

These are rough starting points and you'll have to adjust from there.

Posting Rules
You may not post new threads
You may not 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

Thread Tools
Search this Thread

Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.