backfiring....

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CBXboy
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backfiring....

Post by CBXboy »

bike - 87 cbx250



problem: If I am really reving its nuts off, and I suddenly close the throttle, it has mildly 'poped' - backfired a few times. This has just started happening for the last few days.



any thoughts?



thanks



CBXboy

Passx
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Backfiring

Post by Passx »

CBX-B,



Either your way lean (not Likely) or your "anti-backfire" valve on the #1 carb is going away. This is the round cover located out in the open on the LH side of your #1 carb. You can get them about anywhere and they're not very expensive. Good Luck.



Steve P. #5220

EMS
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CBX250

Post by EMS »

Steve:



the 1987 CBX250 is a 249cc single. And I am not sure, whether the one and only carb has an "anti-backfire" valve. It is a non-U.S. model and our friend CBXBOY is in dire need of some service literature..

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Mike Barone #123
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ole time causes.......

Post by Mike Barone #123 »

long shot here via non cbxs i owned long ago.........



air leaks at the carb/head area and exhaust leaks can cause this also



mike

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