popping / backfiring after installing Arrow full system on 05 S4R

[♣ McKraut ♣]

Hmmm maybe I'll try a combo of all of them! Teflon tape, ultra black or copper (if I can find some finally), donut gaskets, and shimmed with a coke can... For the coke can, do you just cut a long flat strip to wrap around it basically?

[EEL]

Hmmm maybe I'll try a combo of all of them! Teflon tape, ultra black or copper (if I can find some finally), donut gaskets, and shimmed with a coke can... For the coke can, do you just cut a long flat strip to wrap around it basically?

Yep... best way is to seat it w/ rtv. let it cure for a few hours so it doesnt move when you insert.

[silentbob]

Hmmm maybe I'll try a combo of all of them! Teflon tape, ultra black or copper (if I can find some finally), donut gaskets, and shimmed with a coke can... For the coke can, do you just cut a long flat strip to wrap around it basically?

Why when the proper gaskets will do the job fine by themselves?  All that other crap may prevent you from seating the pipes properly.

[lwszabo]

I think you should listen to silentbob...just get the donuts!!!! and lrt us know how it works!

[♣ McKraut ♣]

stopped by and picked up 2 new donut gaskets saturday and i'm glad i did instead of just reusing the old ones...since they were so beat and smashed.  though $20+ for two little gaskets seemed steep, i'll be totally happy with that price if it eliminates it.  i'll be riding in WV and maybe DC later this week, so i'll let you know how they worked.   

[♣ McKraut ♣]

Well after installing two new oem steel donut gaskets the other day, I finally got to take it for a little ride after work. While the pipies were still cool I felt the joints where the arrow pipes fits in the header pipes; the rear didn't have leaks I could detect, while the front had *slight* leaks. The result? No difference...it still pops like nuts, and that's not just when you chop the throttle, even with slight deceleration. It's so prominent that it's distracted me while in a corner, and I've got enough to think about without worrying about that shit.

So the dealer still just wants to put it on the dyno and hook it to a sniffer, so they can charge $120 just to tell me I need to spend $1500 on a dp ecu. So, whatever, make the beast with two backs it at this point, I think after I get back from the WV/DC ride in a few days i'm just throwing the stock exhaust back on and selling the arrows on here. Be looking for that!

[silentbob]

You should have no leaks.  If you can feel exhaust coming out them you will have the popping on decel.  I double up on the gaskets.  My dealer only charges me $2 per gasket if they even charge me at all.  They are a pregnant dog to install correctly without destroying them.  Maybe the dealer could do it for you.

[♣ McKraut ♣]

the leak is really not bad on the front pipe, just a wisp of exhaust; i can't imagine even if it was 100% sealed up it would do much if anything at this point, as the popping is rampant, especially when you hit 5k and lower (it's more like small "explosions", not popping).  and i'm sure my dealer will look at the bike......for $100/hour.  i don't understand why it's so bad; a friend of mine has an S2R1000 and has full arrows, and fully opened airbox, and stock ECU, and zero popping problems.  go figure.

it sucks...because i love the c/f arrows sound, look, and weight savings, but these just belong on a bike that's set up differently i guess.  maybe i'll get the stock cans powdercoated black or something so they're not totally lame.  at least i'll still have a loud clutch.

[DarkMonster620]

the leak is really not bad on the front pipe, just a wisp of exhaust; i can't imagine even if it was 100% sealed up it would do much if anything at this point, as the popping is rampant, especially when you hit 5k and lower (it's more like small "explosions", not popping).  and i'm sure my dealer will look at the bike......for $100/hour.  i don't understand why it's so bad; a friend of mine has an S2R1000 and has full arrows, and fully opened airbox, and stock ECU, and zero popping problems.  go figure.

it sucks...because i love the c/f arrows sound, look, and weight savings, but these just belong on a bike that's set up differently i guess.  maybe i'll get the stock cans powdercoated black or something so they're not totally lame.  at least i'll still have a loud clutch.

Hey man, I'm no expert on Ducatis[just an auto tech w/o a job], but I had/have the issue; I bougth the gaskets, some exhaust paste installed such gaskets with some exhaust paste[the grey stuff] and guess what... NO more popping...plus somehow, I managed to push the pipes about 1/2" monre into the headers and yes I also bought new clamps.
Maybe you should try it once more with the gaskets, paste and clamps, who knows, maybe it'll work ...but while you're at it have a 

[silentbob]

the leak is really not bad on the front pipe, just a wisp of exhaust; i can't imagine even if it was 100% sealed up it would do much if anything at this point, as the popping is rampant, especially when you hit 5k and lower (it's more like small "explosions", not popping).

My S4R was the exactly the same.  Loud explosions.  Stock ECU.  Arrow pipes.  The exhaust leak was barely detectable at idle.  Getting the gaskets on there stopped it. 

[♣ McKraut ♣]

i was up in some higher altitudes over the weekend, and cooler temps...and it was still popping too much to be reasonable (read: embarrassing).  i've checked with dynojet and they tell me there is no PCIII that is compatible with my year/model...so i'm out of luck there.  so really it sounds like i put down money for a DP ecu or a full termi system.  either option is not appealing to me at all, since they would both then require further tuning sessions on the dyno as well.  i just don't have that kind of scratch laying around.  sad, since i love the sound of the arrows so much...except for the popping.

so i'm thinking back to stock i go then.

[Speeddog]

Pretty sure the 710-411 PCIII USB will work on your S4R.

[silentbob]

i was up in some higher altitudes over the weekend, and cooler temps...and it was still popping too much to be reasonable (read: embarrassing).  i've checked with dynojet and they tell me there is no PCIII that is compatible with my year/model...so i'm out of luck there.  so really it sounds like i put down money for a DP ecu or a full termi system.  either option is not appealing to me at all, since they would both then require further tuning sessions on the dyno as well.  i just don't have that kind of scratch laying around.  sad, since i love the sound of the arrows so much...except for the popping.

so i'm thinking back to stock i go then.

Nick is right.  There is a PC that works for your bike.  But it won't help. You problem is not tuning.  If you feel exhaust leaking out, you are sucking air in on decel.  Bring your bike to San Diego and I'll fix it for you.

[DarkMonster620]

i was up in some higher altitudes over the weekend, and cooler temps...and it was still popping too much to be reasonable (read: embarrassing).  i've checked with dynojet and they tell me there is no PCIII that is compatible with my year/model...so i'm out of luck there.  so really it sounds like i put down money for a DP ecu or a full termi system.  either option is not appealing to me at all, since they would both then require further tuning sessions on the dyno as well.  i just don't have that kind of scratch laying around.  sad, since i love the sound of the arrows so much...except for the popping.

so i'm thinking back to stock i go then.

Not so fast there buddy....
No need to go silent... No pun intended Bob, but I'll repeat myself from a couple of post back, " I bougth the gaskets, some exhaust paste installed such gaskets with some exhaust paste[the grey stuff] and guess what... NO more popping...plus somehow, I managed to push the pipes about 1/2" more into the headers and yes I also bought new clamps."

Plus silentbob says "My S4R was the exactly the same.  Loud explosions.  Stock ECU.  Arrow pipes.  The exhaust leak was barely detectable at idle.  Getting the gaskets on there stopped it.  Bring your bike to San Diego and I'll fix it for you"

This option might cost, say $60.00? I'm saying, here in Panama chemicals get taxed pretty hard, exhaust paste costed $25.00 for a 8oz jar, both clamps $40.00{yes, OEM], a little 280 grit sandpaper[used] and a must while working, music and cold beer. Try it out, if it doesn't work, blame me,
I'll drink one for you with my dinner...

[loony888]

ok guys, doing a little thread mining, i know, but my S4R is giving me the shits! the arrow exhaust is fine but those std stubby headers are rubbish as is the stupid flange gasket arrangement. i've replaced 4 sets of those ring gaskets and they seal ok for a while but within a couple of thousand klms it starts leaking and gradually gets worse until i fix it.........again! the 2nd time i pulled it apart the front cyl. header fell apart into 3 pieces.
   so in short, i have just bought a set of 996 headers which have the facility for a slip joint that seats using springs for tension and i'm going to chop my arrow mid pipes and lengthen them to suit. the vert. cyl header bends to the right not the left but that's a small issue which will be sorted when i get it all fabricated up.
   oh, i run a DP ecu, K&N filter with a letter box cut out and the open c/f arrows, the tps is correct and the throttle bodies have been balanced. i'll let you all know how i get along because i'm sure i'm not the only one who has had a gutfull of a cheap arse set up on this bike.

paul.