blackbird
Adjunct
Reged: 12/22/07
Posts: 531
Loc: Monmouth co. NJ
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I have been running the same setup for a few years now, cocktail shaker slip ons(no baffles),AI removed,air box removed and replaced with KnN's, and it was fine for a while.(I rejetted but have no idea what I used) I am backfiring and popping like crazy now.I know this question is asked often but every bike has a different setup and it was ok for a while. Do I need to rejett, adjust air mixture, any ideas would be helpful.
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pain is temporary, pride is forever.
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Ryk
Learned Hand
Reged: 05/19/10
Posts: 1626
Loc: Pac. NW
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Are your shaker exhausts unsupported, how about supports for the carbs as well? Your copper crush o-rings betwixt the head and E. headers may be toast. You can take a unlit propane torch and see if the idle changes on the intakes. Do you still have your TPS still connected? My bikes haven't popped since I un clipped those. IIRC, somebody on here was experiencing the air screws vibrating out of adjustment. Also, a search here (BA.Com), should provide a plethora of info to go on. Common problem and addressed on here, aplenty .
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Zmilin
Saddle Sore
Reged: 03/02/07
Posts: 5109
Loc: Sammamish, Washington - USA
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Quote:
You can take a unlit propane torch and see if the idle changes on the intakes.
You should explain the before someone bles up their bike 
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07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq
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Ryk
Learned Hand
Reged: 05/19/10
Posts: 1626
Loc: Pac. NW
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Your right Z, I assume people have inherit common sense and would only slightly crack the valve. I wouldn't want to be responsible for blesing anybodies engine
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Zmilin
Saddle Sore
Reged: 03/02/07
Posts: 5109
Loc: Sammamish, Washington - USA
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LMAO... I meant blows up their bike. 
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07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq
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blackbird
Adjunct
Reged: 12/22/07
Posts: 531
Loc: Monmouth co. NJ
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Quote:
Your right Z, I assume people have inherit common sense and would only slightly crack the valve. I wouldn't want to be responsible for blesing anybodies engine
I assume we are looking for a leak and not trying to heat treat anything.
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pain is temporary, pride is forever.
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blackbird
Adjunct
Reged: 12/22/07
Posts: 531
Loc: Monmouth co. NJ
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Quote:
Quote:
You can take a unlit propane torch and see if the idle changes on the intakes.
You should explain the before someone bles up their bike
What is the TPS?
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pain is temporary, pride is forever.
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Gregger
Oil Expert
Reged: 04/07/07
Posts: 2371
Loc: Timmins, Ontario
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The TPS is the throttle position sensor. The CDI unit monitors the position of the throttle plate (TPS) and the speed of the engine (Pick up coil) to determine the correct advance curve for the bike. Disconnecting the TPS places the advance curve in the full throttle map which significantly reduces popping on deceleration. It doens't appear to change the performance of the bike that much according to all who have done it including myself.
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03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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Keith
Stickman Yogi
Reged: 03/21/09
Posts: 11611
Loc: BC, Canada
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Yup, I'm a happy camper after disconnecting the TPS. My bike went from serious (and annoying I might add) popping on decel to zero popping with no other noticeable change.
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Live to love, love to live.
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blackbird
Adjunct
Reged: 12/22/07
Posts: 531
Loc: Monmouth co. NJ
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Quote:
The TPS is the throttle position sensor. The CDI unit monitors the position of the throttle plate (TPS) and the speed of the engine (Pick up coil) to determine the correct advance curve for the bike. Disconnecting the TPS places the advance curve in the full throttle map which significantly reduces popping on deceleration. It doens't appear to change the performance of the bike that much according to all who have done it including myself. [/quo
Ok so you gonna keep it a secret or you gonna tell me where it is and how to disconnect?te] 
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pain is temporary, pride is forever.
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