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Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Diagnosing problems: » Archive through May 20, 2011 » Stock 2004 popping exhaust during low rpm engine braking. « Previous Next »

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Xenox
Posted on Friday, March 18, 2011 - 08:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I recently noticed low rpm popping during engine braking normally in low gears.

When I engine brake for extended periods of time , within reasonable rpm's of course, the engine seems to run rough, during this time there is evidence of oil puking from the vent hose. Engine oil is at the upper line on the dipstick, checked after a long ride with the engine off.


Bike has 600 miles on it. Otherwise it runs like a top, runs very smooth cruising
and during acceleration had it up to 92 miles an hour today. Idles decently as well . I'm just wondering about the popping any ideas ?
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Ezblast
Posted on Friday, March 18, 2011 - 08:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What year - boot is either loose or cracked - or lower jet needs replacing - use a 45.
EZ
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Xenox
Posted on Friday, March 18, 2011 - 08:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's an 04, I'll scrutinize those items a little closer next chance I get .Thanks EZ,
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Ezblast
Posted on Monday, March 21, 2011 - 12:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Air screw could use adjusting as well if there is popping on decel only.
EZ
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