Popping & crackling after fitting a new can - SV650.org

21-03-05, 02:05 PM

On the over run my bike pops and crackles a bit

Is it meant too? I cant find any leaks around the joints, I'm a little worried its gonna damage the bike

Sounds great though

21-03-05, 02:12 PM

V-twins with open race cans tend to do this.

Nothing to worry about. The pops come from unburnt fuel that ignites in the exhaust line. Normally the baffle/cat eliminates this on road legal cans.

I've been told by friends that at night, when my can pops, there are flames spitting out of the exhaust.

Spiderman · 21-03-05, 02:13 PM

What can did you put on it?

After fitiing my G-Force i noticed a good amount of popping (only minor, but sounds great) at various parts of the rev range and more pronounced when off the revs and the engine is slowing the bike.

But then that was part of the reason i chose G-Force as it does the same kinda thing on my mates Ninja.

21-03-05, 02:23 PM

Spidey - CCC Twin outlet with removable baffles (note:the baffles fell out before the can was fitted) It only happens when using the engine braking, I just wondered if this was meant to happen on the injected models.

21-03-05, 02:23 PM

Popping on the over-run is pretty normal with aftermarket cans though, as Stef says, stock cans don't (except for the new Triumphs!), so it's a bit worrying if you're not used to it.

21-03-05, 02:26 PM

Two Brothers X-metal

BillyC · 21-03-05, 02:33 PM

Pork,

The injection version of the 650 engine has a PAIR system attached to it. This stands for Pulsed Air Injection, and litterally introduces air into the exhaust gases - this allows unburnt fuel to ignite, usually down the exhaust, and now that you have a race can, you can hear it.

Usually the popping on the overrun is a sign of a leak in the exhaust system.

21-03-05, 02:37 PM

Quote:

Originally Posted by BillyC

Usually the popping on the overrun is a sign of a leak in the exhaust system.

Billy - Will this damage the bike?

BillyC · 21-03-05, 02:41 PM

Nope... it's all happening away from the mechanical parts of your bike. Always worth getting the mixture tuned, which will reduce the popping, and make things a little cleaner, but not something to worry about otherwise.

Just enjoy the noise!

21-03-05, 02:44 PM

I get plenty of pops and bangs from my twin Rene's.

No problems, just sounds cool.

21-03-05, 02:05 PM	#1
PoRk ChOp Guest Posts: n/a	Popping & crackling after fitting a new can On the over run my bike pops and crackles a bit Is it meant too? I cant find any leaks around the joints, I'm a little worried its gonna damage the bike Sounds great though

21-03-05, 02:13 PM	#3
Spiderman Where the hell am I? Mega Poster Join Date: Dec 2004 Location: Swingin' thru the urban jungle Posts: 7,451	What can did you put on it? After fitiing my G-Force i noticed a good amount of popping (only minor, but sounds great) at various parts of the rev range and more pronounced when off the revs and the engine is slowing the bike. But then that was part of the reason i chose G-Force as it does the same kinda thing on my mates Ninja. __________________ . "Computers are great! Not for communicating tho. They have one fundamental flaw ... they don't have eyebrows." AlpineCarStereo: you win ....... eeerrr ..... ummm ..... my undying support of you, the greatest Mod this forum has ever known. My Leige. davepreston: i bow to your modding godliness. vixis: He's this really cute Persian tea-boy, Im so not giving you his number :P

21-03-05, 02:33 PM	#7
BillyC Moderator Mega Poster Join Date: Nov 2003 Location: The exiles of Kent Posts: 2,184	Pork, The injection version of the 650 engine has a PAIR system attached to it. This stands for Pulsed Air Injection, and litterally introduces air into the exhaust gases - this allows unburnt fuel to ignite, usually down the exhaust, and now that you have a race can, you can hear it. Usually the popping on the overrun is a sign of a leak in the exhaust system. __________________ SV650 K3 - Gone. Now a member of the SV650.org Kawasaki brigade!

21-03-05, 02:41 PM	#9
BillyC Moderator Mega Poster Join Date: Nov 2003 Location: The exiles of Kent Posts: 2,184	Nope... it's all happening away from the mechanical parts of your bike. Always worth getting the mixture tuned, which will reduce the popping, and make things a little cleaner, but not something to worry about otherwise. Just enjoy the noise! __________________ SV650 K3 - Gone. Now a member of the SV650.org Kawasaki brigade!

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21-03-05, 02:12 PM	#2
Stef Guest Posts: n/a	V-twins with open race cans tend to do this. Nothing to worry about. The pops come from unburnt fuel that ignites in the exhaust line. Normally the baffle/cat eliminates this on road legal cans. I've been told by friends that at night, when my can pops, there are flames spitting out of the exhaust.

21-03-05, 02:23 PM	#4
PoRk ChOp Guest Posts: n/a	Spidey - CCC Twin outlet with removable baffles (note:the baffles fell out before the can was fitted) It only happens when using the engine braking, I just wondered if this was meant to happen on the injected models.

21-03-05, 02:23 PM	#5
wyrdness Guest Posts: n/a	Popping on the over-run is pretty normal with aftermarket cans though, as Stef says, stock cans don't (except for the new Triumphs!), so it's a bit worrying if you're not used to it.

21-03-05, 02:26 PM	#6
Stef Guest Posts: n/a	Two Brothers X-metal

21-03-05, 02:44 PM	#10
Mervin Guest Posts: n/a	I get plenty of pops and bangs from my twin Rene's. No problems, just sounds cool.