View Full Version : Popping & crackling after fitting a new can
PoRk ChOp
21-03-05, 02:05 PM
On the over run my bike pops and crackles a bit :shock: 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 8)
V-twins with open race cans tend to do this. :lol:
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. :twisted:
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.
PoRk ChOp
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.
wyrdness
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.
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.
PoRk ChOp
21-03-05, 02:37 PM
Usually the popping on the overrun is a sign of a leak in the exhaust system.
Billy - Will this damage the bike?
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!
I get plenty of pops and bangs from my twin Rene's.
No problems, just sounds cool.
PoRk ChOp
21-03-05, 02:44 PM
Cheers mate, I'm a mechanical ****wit and always worry about these type of things :lol:
there are flames spitting out of the exhaust. :twisted:
:D niiiiiiiice
there are flames spitting out of the exhaust. :twisted:
:D niiiiiiiice
Get someone to follow you at night. I'll bet your Remus does it too. (provided the baffle fell out :lol: ).
I think it's a shame i can't see it myself and all my friends have I4's.
there are flames spitting out of the exhaust. :twisted:
:D niiiiiiiice
Get someone to follow you at night. I'll bet your Remus does it too. (provided the baffle fell out :lol: ).
it does (or did) spit fire, although have just had the bike serviced and it has stopped banging on the overrun. may have been running too rich.
It stopped when serviced ????
Did they fitted new spark plugs or did they do a remap ?
650newb
21-03-05, 04:07 PM
ive got a G-force race can and mine only pops when the choke is on, and i can see flames everytime it pops, alright they dont come right out of the exhaust. is mine ok or have i got a problem?
The Wolf
21-03-05, 10:10 PM
I have a G-Force race can which pops & bangs. Certainly hasnt affected performance and I get flames all the time! Dont think its too much to worry about.
:wink:
Sid Squid
21-03-05, 10:14 PM
On the over run my bike pops and crackles 8)
Yeah, cool innit. :lol:
PoRk ChOp
22-03-05, 09:51 AM
On the over run my bike pops and crackles 8)
Yeah, cool innit. :lol:
Damn right it is 8) Coming in to work this morning was interesting, when I was filtering it was like the parting of the red sea :lol: and when I entered the Tyne Tunnel the noise was like thunder with the car behind about 50 meters back :wink:
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