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Will the backfiring eventually burn the valves or do any damage---As you can hear it pulls solid all the way through--Thanks for listening


Kenny
 

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hmm I don't believe its going to hurt anything. I see in your sig that your 3 turns out on A/F screw. Try some 42 pilots jets. Also by adding shims this should correct your backfiring when letting off the throttle. Are you using #4 brash washers for the shims? If not try adding one more shim under each needle.
 

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Can't say that I heard any backfiring myself. I heard a little blurbly sound when you let off the throttle after running it hard. My setup with the HMF duals does the same thing. I think it is normal. Someone else will have to chime in and verify that because I am not positive on that but I am pretty sure it is normal.
 

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Did i miss something:confused:i didnt hear any backfiring?I wouldnt touch them,sound good!!
 
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