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

Mufflers for older four-cycles

Old 03-09-2015, 06:17 AM
Lomcevak Duck
Senior Member
Thread Starter
My Feedback: (14)
Lomcevak Duck's Avatar
Join Date: Feb 2004
Location: Enterprise, AL
Posts: 1,233
Likes: 0
Received 1 Like on 1 Post
Default Mufflers for older four-cycles

I have a pair of older OS four-cycle engines that I plan to use in upcoming antique competitions. They are the FS-60 (open rocker) and the FS-90 (rear rocker) engines.

The rules for the events require mufflers on all engines. Did OS ever make a muffler to fit either of these? If not, do you know of any mufflers for later OS four-cycles that I may be able to adapt for them?
Old 03-10-2015, 06:01 AM
My Feedback: (11)
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,483
Likes: 0
Received 6 Likes on 5 Posts

For the initial series of O.S. engines, there were no mufflers made for them. They were considered quiet enough, especially when compared to the howling two-stroke engines of the day. The original FS-91 did have a muffler available for it, but it is no longer available from us or O.S. in Japan. You'd have to locate one from a collector.

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.