Exhaust problem...still?
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Intermediate
Joined: Mar 2011
Posts: 42
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From: Media, PA
Exhaust problem...still?
Ok guys. I need some help here. I'm not quite sure where to start as I am a noob to mechanical issues with motorcycles.
I just recently put on some vance and hines true duals. I replaced the crush gaskets in between the exhaust flange and exhaust ports on the heads with SE ones from the dealer. I made sure everything was tight and have re tightened the exhaust bolts in the past two days. On top of all of this I received and installed my fuel moto brand pciii. It came preprogrammed, I thought that was cool! Anyway, I am still having an extreme amount of popping on decel and cannot figure out why to save my life!
Like I said, I have re-tightend the nuts and bolts, I have used smoke from a cigarette around the heads to check for exhaust leaks and now I'm out of ideas...is there anything else I should be checking? I figured by now I would have the popping gone but it has not left my pipes.
My thinking may be a tuning problem? I did stall at a red light out of NOWHERE while in neutral... Thank you for bearing with this lengthy post and all of your feedback. Definitely appreciate it!
Mike
P.S- I'm getting roughly 30 mpg? Would tuning have something to do with this?
I just recently put on some vance and hines true duals. I replaced the crush gaskets in between the exhaust flange and exhaust ports on the heads with SE ones from the dealer. I made sure everything was tight and have re tightened the exhaust bolts in the past two days. On top of all of this I received and installed my fuel moto brand pciii. It came preprogrammed, I thought that was cool! Anyway, I am still having an extreme amount of popping on decel and cannot figure out why to save my life!
Like I said, I have re-tightend the nuts and bolts, I have used smoke from a cigarette around the heads to check for exhaust leaks and now I'm out of ideas...is there anything else I should be checking? I figured by now I would have the popping gone but it has not left my pipes.
My thinking may be a tuning problem? I did stall at a red light out of NOWHERE while in neutral... Thank you for bearing with this lengthy post and all of your feedback. Definitely appreciate it!
Mike
P.S- I'm getting roughly 30 mpg? Would tuning have something to do with this?
Tourer
Joined: Jul 2008
Posts: 281
Likes: 0
From: CANON CITY COLORADO
Same thing with mine. V&H 2-1 w/ PCV, done loaded the map.
Under 2k, extreme back fire, running really lean.
I got my pipes from a collegue, so I looked up the pipes.. He had the baffles punched straight thru, that my be the racing baffles, but...
I ordered the standard baffle and hopefully that will give me just enough back pressure to richen the mix abit and make it a little mo-betta. I'll find out this coming week.
Under 2k, extreme back fire, running really lean.
I got my pipes from a collegue, so I looked up the pipes.. He had the baffles punched straight thru, that my be the racing baffles, but...
I ordered the standard baffle and hopefully that will give me just enough back pressure to richen the mix abit and make it a little mo-betta. I'll find out this coming week.
Thread Starter
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Intermediate
Joined: Mar 2011
Posts: 42
Likes: 0
From: Media, PA
Wait...I just had a really big "oh SH*T moment"....I don't remember taking or throwing out old crush gaskets....damn they much be IN there...? Do you need to like scrape them out of the heads or something? I don't remember taking them out...or having them fall out....the ones I put in fit perfectly in though....
Tourer
Joined: Jul 2008
Posts: 281
Likes: 0
From: CANON CITY COLORADO
Yep. get a #1 standard drive and pop those bad boys out. Same with oil filters, you always have to make sure the rubber seal from the filter isn't sticking to the case. I did that once and oil gushed to my eye *****.
The new ones you put in may have "cupped" the old ones nice enough for you not to question the fit, and or you put the old ones in backwards as well and then they would have cupped the old one.
Hell, at least you retorqued them......
The new ones you put in may have "cupped" the old ones nice enough for you not to question the fit, and or you put the old ones in backwards as well and then they would have cupped the old one.
Hell, at least you retorqued them......
Last edited by WarBootie; Jun 19, 2011 at 09:03 PM.
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Remove the old crush washers.
You not only have to check for leaks around the head but where your mufflers connect. Check the torque on the torca clamps and make sure they are at correct torque and as close to the edge as possible.
When you ordered the pc did you tell them what you were putting on the bike as well as how the air system was set-up.
Decel pop is not back-firing, it happens when you close the throttle not open it.
Good hunting.
You not only have to check for leaks around the head but where your mufflers connect. Check the torque on the torca clamps and make sure they are at correct torque and as close to the edge as possible.
When you ordered the pc did you tell them what you were putting on the bike as well as how the air system was set-up.
Decel pop is not back-firing, it happens when you close the throttle not open it.
Good hunting.
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Thread Starter
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Intermediate
Joined: Mar 2011
Posts: 42
Likes: 0
From: Media, PA
Remove the old crush washers.
You not only have to check for leaks around the head but where your mufflers connect. Check the torque on the torca clamps and make sure they are at correct torque and as close to the edge as possible.
When you ordered the pc did you tell them what you were putting on the bike as well as how the air system was set-up.
Decel pop is not back-firing, it happens when you close the throttle not open it.
Good hunting.
You not only have to check for leaks around the head but where your mufflers connect. Check the torque on the torca clamps and make sure they are at correct torque and as close to the edge as possible.
When you ordered the pc did you tell them what you were putting on the bike as well as how the air system was set-up.
Decel pop is not back-firing, it happens when you close the throttle not open it.
Good hunting.
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