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

OS FX 91 carb swap

Old 11-08-2012, 12:28 PM
  #1  
rodders
Thread Starter
 
Join Date: Dec 2002
Location: Somerset, , UNITED KINGDOM
Posts: 214
Likes: 0
Received 0 Likes on 0 Posts
Default OS FX 91 carb swap

Hello there.
I have a new in box OSFX91. It's been in my draw since the 91 FX fistst came out.

I have just bought one of the arf dirty birds and have toyed with putting the engine in.

On doing some research I notice all the threads about carb/needle valve issues.
I have the early type of engine with the metal valve housing.
My question is can I just fit a carb with the needle valve at the front and totally dispense with the rear mounted needle valve?
If I can what's the part number?

Regards
Rodders
Old 11-12-2012, 07:57 AM
  #2  
Bax
My Feedback: (11)
 
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,483
Likes: 0
Received 6 Likes on 5 Posts
Default RE: OS FX 91 carb swap

You will need to measure the intake diameter to see what size carburetor the engine can take. Then, purchase a .91-sized carb with that dimension at the neck of the carb that goes into the engine. O.S. doesn't have a part to fit.

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 - 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.