??? decell pop
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Road Master
Joined: Nov 2006
Posts: 902
Likes: 0
From: pennsylvania
??? decell pop
I have 07 with sert ,airbox and rush 2.0 slipons. bike runs fine but pops when i leave off throttle considerably. Anything i can look for before i take it back to be dyno'd again. the dyno showed 14-1 mix throughout the rpm range when i picked it up.
thanks
thanks
Intermediate
Joined: Aug 2007
Posts: 35
Likes: 1
From: Ontario
RE: ??? decell pop
An occasional deceleration pop usually indicates a lean fuel mixture caused by carb or injector set-up,or air leak at intake manifold seal.Your 2007 is not likely to leak at manifold, and uses throttle body injection. Your 14/1 air to fuel ratio would probably be fine for stock intake and exhaust but it is too lean for open exhaust.It would probably run better at 13.5/1.This will be hard to achieve without eliminatingO2 sensors.
Novice
Joined: May 2007
Posts: 16
Likes: 0
From:
RE: ??? decell pop
Are you running factory head pipes. If so when getting off the gas the back jug is sucking in air and causing the O2 sensor to read lean and adding more fuel. Answers....... leave the gas ope just a little dont shut all the way down. or change to a true duel header pipe. I add the Thunder Max programer to my bike with the Auto tuner and they set the softwear up so i dont have any pops on decel....It was worth the money.
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Road Master
Joined: Nov 2006
Posts: 902
Likes: 0
From: pennsylvania
RE: ??? decell pop
ORIGINAL: Biggin65
Are you running factory head pipes. If so when getting off the gas the back jug is sucking in air and causing the O2 sensor to read lean and adding more fuel. Answers....... leave the gas ope just a little dont shut all the way down. or change to a true duel header pipe. I add the Thunder Max programer to my bike with the Auto tuner and they set the softwear up so i dont have any pops on decel....It was worth the money.
Are you running factory head pipes. If so when getting off the gas the back jug is sucking in air and causing the O2 sensor to read lean and adding more fuel. Answers....... leave the gas ope just a little dont shut all the way down. or change to a true duel header pipe. I add the Thunder Max programer to my bike with the Auto tuner and they set the softwear up so i dont have any pops on decel....It was worth the money.
live and learn
thanks again
Road Master
Joined: Jan 2007
Posts: 979
Likes: 1
From: Glenn Heights,TX now in Vegas
RE: ??? decell pop
I have the same problem when I added fuel programmer I though that would cure it. I have about 1,000 miles on my rushes. They were rattling so I pulled the baffle. The packing inside is more than half gone. You may want to check that.
Road Warrior
Joined: Dec 2006
Posts: 1,406
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From: long beach california
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Road Captain
Joined: Aug 2005
Posts: 503
Likes: 2
From: Dallas, Tx
RE: ??? decell pop
I don't have the SERT but do have the Rush slip-on's, A/C, and Fuelpak and do not have any decel pop witht he stock header pipes. I would double check the slip-on to header for leaks and then I would see if they could add some fuel in the closed throttle position by changing the SERT settings. Just a thought..
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Tourer
Joined: Mar 2007
Posts: 358
Likes: 0
From: Hammonton, NJ
RE: ??? decell pop
Exactly what Steelhead said!
Doublecheck the seal of your pipes with the header. I tightened my down as much as a I could with a 1/2" ratchet and both sides were leaking slightly. Disassembled the slip on's, put a light coating of high temp RTV and reassembled and now they don't leak.
While starting the bike up to let a friend have a listen I could feel the air coming out of the pipes. Since I have fixed I have less popping but I can't say I have eliminated it.
Good Luck
Doublecheck the seal of your pipes with the header. I tightened my down as much as a I could with a 1/2" ratchet and both sides were leaking slightly. Disassembled the slip on's, put a light coating of high temp RTV and reassembled and now they don't leak.
While starting the bike up to let a friend have a listen I could feel the air coming out of the pipes. Since I have fixed I have less popping but I can't say I have eliminated it.
Good Luck
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