Stock decel popping
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Road Captain
Joined: Sep 2007
Posts: 602
Likes: 0
From: Long Beach,Wa.
RE: Stock decel popping
ORIGINAL: Snuffy1
It could be so small you can not find it. With a v-twin \\;\\\\\\;it could be sucking a little air back in one pipe. Or a small leak around a O2 sensor.
Just a guess. I've seen it before. Let the dealer check it out for sure since it is still in warranty.
It could be so small you can not find it. With a v-twin \\;\\\\\\;it could be sucking a little air back in one pipe. Or a small leak around a O2 sensor.
Just a guess. I've seen it before. Let the dealer check it out for sure since it is still in warranty.
Ultimate HDF Member
Joined: Mar 2008
Posts: 5,788
Likes: 203
From: SW Florida
RE: Stock decel popping
ORIGINAL: rsofa
What's the best way to find the leak?? I see no visible signs of a leak around the connections....
What's the best way to find the leak?? I see no visible signs of a leak around the connections....
 \\;
Check the muffler clamp for tightness. Tighten up to 65 ft-lbs
 \\;
Posted by Doc1: Take a 3/8 or 1/4 hose about 18~20' long, put one end to your ear and the other end sweep around the exhaust gasket area at the head....if it's leaking even a little bit you will hear a CRACKING or TICKING through the hose.
 \\;
Flange tightening:
Tighten the top nut of the front cylinder head exhaust flange to 9-18 in-lbs.
Tighten the bottom nut to 100-120 in-lbs
Then \\;the top to 100-120 in-lbs
Reverse the process on the rear cylinder by starting with the bottom bolt
Thread Starter
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Road Captain
Joined: Sep 2007
Posts: 602
Likes: 0
From: Long Beach,Wa.
RE: Stock decel popping
ORIGINAL: Bertk
 \\;\\\\\\;
Check the muffler clamp for tightness. Tighten up to 65 ft-lbs
 \\;\\\\\\;
Posted by Doc1: Take a 3/8 or 1/4 hose about 18~20' long, put one end to your ear and the other end sweep around the exhaust gasket area at the head....if it's leaking even a little bit you will hear a CRACKING or TICKING through the hose.
 \\;\\\\\\;
Flange tightening:
Tighten the top nut of the front cylinder head exhaust flange to 9-18 in-lbs.
Tighten the bottom nut to 100-120 in-lbs
Then \\;\\\\\\;the top to 100-120 in-lbs
Reverse the process on the rear cylinder by starting with the bottom bolt
ORIGINAL: rsofa
What's the best way to find the leak?? I see no visible signs of a leak around the connections....
What's the best way to find the leak?? I see no visible signs of a leak around the connections....
 \\;\\\\\\;
Check the muffler clamp for tightness. Tighten up to 65 ft-lbs
 \\;\\\\\\;
Posted by Doc1: Take a 3/8 or 1/4 hose about 18~20' long, put one end to your ear and the other end sweep around the exhaust gasket area at the head....if it's leaking even a little bit you will hear a CRACKING or TICKING through the hose.
 \\;\\\\\\;
Flange tightening:
Tighten the top nut of the front cylinder head exhaust flange to 9-18 in-lbs.
Tighten the bottom nut to 100-120 in-lbs
Then \\;\\\\\\;the top to 100-120 in-lbs
Reverse the process on the rear cylinder by starting with the bottom bolt
Ultimate HDF Member
Joined: Mar 2008
Posts: 5,788
Likes: 203
From: SW Florida
RE: Stock decel popping
ORIGINAL: rsofa
Thanks I'll check it out I would have thought they would have on the 1k service I just had done 700 m ile ago!
Thanks I'll check it out I would have thought they would have on the 1k service I just had done 700 m ile ago!
I may not be an exhaust leak but a leak has to be ruled out. Check the O2 sensor connection also
RE: Stock decel popping
got 700km on my bike today and started to le the RPM's go up a little.. i get the popping noise when i accelerate to 4500RPM and then back off the throttle. all is stock except for SE heavy breather.
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Ultimate HDF Member
Joined: Mar 2008
Posts: 5,788
Likes: 203
From: SW Florida
RE: Stock decel popping
ORIGINAL: papifun
got 700km on my bike today and started to le the RPM's go up a little.. i get the popping noise when i accelerate to 4500RPM and then back off the throttle. all is stock except for SE heavy breather.
got 700km on my bike today and started to le the RPM's go up a little.. i get the popping noise when i accelerate to 4500RPM and then back off the throttle. all is stock except for SE heavy breather.
What is happening is that the ECM cant compensate for the installed add-ons.
I would start by removing the heavy breather and see if it runs better.
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,609
Likes: 1
From: Indy area
RE: Stock decel popping
ORIGINAL: Bertk
I would start by removing the heavy breather and see if it runs better.
I would start by removing the heavy breather and see if it runs better.
Either that or get the download for it (which seems should have been included in the description of changes).