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1997 LT-F250 Suzuki Quadrunner idle mixture setting


Richard1234
Go to solution Solved by Ajmboy,

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Hey all, just bought a rather ratty non-runner quadrunner that I am working on. 

Carb idle jet was blocked up of course and the clip had fallen off the needle!  Anyways, got it cleaned up and running, though rough.  Was wondering what the factory set was for the needle clip and the turns out for the mixture screw (the one inside the carb with access through the float bowl).  I guessed at 2nd down from the top of the needle and 3.5 turns out on the mixture, but it seems off.

Can anyone with a service manual let me know please. 

Thanks

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  • Ajmboy changed the title to 1997 LT-F250 Suzuki Quadrunner idle mixture setting
On 11/11/2021 at 9:40 PM, Richard1234 said:

I can't download yet (10 posts?) but thank you for what will be a great link. 

Hating to push my luck, but do you have an owner's/operator's manual for it too? :) 

 

10 posts should unlock that for you. Its by design so people participate as members here and don't just download and leave. There is a membership option for those that prefer immediate access without posting https://www.quadcrazy.com/subscriptions

Unfortunately I could not find the owners manual.

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On 11/10/2021 at 8:01 PM, Richard1234 said:

Hey all, just bought a rather ratty non-runner quadrunner that I am working on. 

Carb idle jet was blocked up of course and the clip had fallen off the needle!  Anyways, got it cleaned up and running, though rough.  Was wondering what the factory set was for the needle clip and the turns out for the mixture screw (the one inside the carb with access through the float bowl).  I guessed at 2nd down from the top of the needle and 3.5 turns out on the mixture, but it seems off.

Can anyone with a service manual let me know please. 

Thanks

I cant tell you what the needle clip setting us but the air mixture screw should be 2 full rotations out.

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1 hour ago, coyote56 said:

I cant tell you what the needle clip setting us but the air mixture screw should be 2 full rotations out.

Assuming the screw opens air, that would explain why it seems to idle lean.  It even backfired when I shut it down.  

Argh, comes apart again.  (I had a bit of trouble getting the air box back on etc.)

thanks though!

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