Modifications

barry_mcki wrote:BTW the popping is because there is more oxygen in the hot exhaust, thus creating the enviroment for small combustions when you back of and the additional unburnt fuel is dumped out the exhaust valves.  Because the original exhaust is so restrictive, it does a very good job at muffling the popping.  So I don't think it is the exhaust letting more air out, that would imply there is air stored in the exhaust system somewhere.  The reason you hear the popping is because the aftermarket cans are a lot more free-flowing, i.e. less restrictive, therefore less muffling, hence the louder the popping.

avandr wrote:Hi all after posting an introduction I have found the forum quite helpful.
I have just purchased a new 2011 GSX1250FA, aside from a new can mods, what are the most common non engine mods?
Also I read about the Pair system, what is its functionality and why do people buy a kit to block it off? What performance effect will this have if done?

Thanks in advance
Adrian

barry_mcki wrote:On the Pairs, I believe the whole science of this being an antipollution control device is b***s***.  Essentially it is an emmission control system that fools the air pollution monitoring gurus into thinking the motor is producing less pollutants.  In reality the readings are erroronious, the Pairs is just introducing more fresh air into the exhaust.  The motor is still putting out exactly the same amount of pollutants. 

BTW the popping is because there is more oxygen in the hot exhaust, thus creating the enviroment for small combustions when you back of and the additional unburnt fuel is dumped out the exhaust valves.  Because the original exhaust is so restrictive, it does a very good job at muffling the popping.  So I don't think it is the exhaust letting more air out, that would imply there is air stored in the exhaust system somewhere.  The reason you hear the popping is because the aftermarket cans are a lot more free-flowing, i.e. less restrictive, therefore less muffling, hence the louder the popping.

The Pairs blockoff / bypass systems, whether it is the full removal and replacement with new plates, resistors etc, or the simple ball bearing in the air supply pipe, stops this additional air getting into the exhaust in the first place.  Some people don't mind the decel popping, personnally I didn't do it straight away when I installed my Yoshi, eventually however it got a bit too annoying so I ended up getting one of MetrickMetal kits.

Mind you I have no mechanical training so all the above might just be me b***s***ing

Hammy wrote:

barry_mcki wrote:On the Pairs, I believe the whole science of this being an antipollution control device is b***s***.  Essentially it is an emmission control system that fools the air pollution monitoring gurus into thinking the motor is producing less pollutants.  In reality the readings are erroronious, the Pairs is just introducing more fresh air into the exhaust.  The motor is still putting out exactly the same amount of pollutants. 

BTW the popping is because there is more oxygen in the hot exhaust, thus creating the enviroment for small combustions when you back of and the additional unburnt fuel is dumped out the exhaust valves.  Because the original exhaust is so restrictive, it does a very good job at muffling the popping.  So I don't think it is the exhaust letting more air out, that would imply there is air stored in the exhaust system somewhere.  The reason you hear the popping is because the aftermarket cans are a lot more free-flowing, i.e. less restrictive, therefore less muffling, hence the louder the popping.

The Pairs blockoff / bypass systems, whether it is the full removal and replacement with new plates, resistors etc, or the simple ball bearing in the air supply pipe, stops this additional air getting into the exhaust in the first place.  Some people don't mind the decel popping, personnally I didn't do it straight away when I installed my Yoshi, eventually however it got a bit too annoying so I ended up getting one of MetrickMetal kits.

Mind you I have no mechanical training so all the above might just be me b***s***ing

Letting more air out.  Less restrictive.   Aren't they the same thing ? 

madmax wrote:

Hammy wrote:

barry_mcki wrote:So I don't think it is the exhaust letting more air out, that would imply there is air stored in the exhaust system somewhere.  The reason you hear the popping is because the aftermarket cans are a lot more free-flowing, i.e. less restrictive, therefore less muffling, hence the louder the popping.

Letting more air out.  Less restrictive.   Aren't they the same thing ? 

Less restrictive = letting the exhaust gases out faster

madmax wrote:Pair system adds air to the exhaust system to cause a more complete burn of any unburnt fuel in the exhaust.
Same as you might have seen on some 80s cars that used a air pump.

Other Mods

Crash knobs (R&G are the only company who make these for the GSX1250FA)
I can swear by these, when coming home from the Cowra rally my bike decided to have a sleep on its left side. Crash knob saved the fairing from any damage.

Heated grips
Aftermarket screen if the stock one doesn't suit your height
HID headlights
Airbox mods, though you may want to wait until your out of warranty
hugger
GPS


you can get a whole list of suggestions here

avandr wrote:

madmax wrote:Pair system adds air to the exhaust system to cause a more complete burn of any unburnt fuel in the exhaust.
Same as you might have seen on some 80s cars that used a air pump.

Other Mods

Crash knobs (R&G are the only company who make these for the GSX1250FA)
I can swear by these, when coming home from the Cowra rally my bike decided to have a sleep on its left side. Crash knob saved the fairing from any damage.

Heated grips
Aftermarket screen if the stock one doesn't suit your height
HID headlights
Airbox mods, though you may want to wait until your out of warranty
hugger
GPS


you can get a whole list of suggestions here

Sorry this may sound basic however being new to this style of bike do you happen to have an image of what the crash nobs look like and where they are placed?
Thanks
Adrian

madmax wrote:

avandr wrote:

madmax wrote:
Crash knobs (R&G are the only company who make these for the GSX1250FA)
I can swear by these, when coming home from the Cowra rally my bike decided to have a sleep on its left side. Crash knob saved the fairing from any damage.

Sorry this may sound basic however being new to this style of bike do you happen to have an image of what the crash nobs look like and where they are placed?
Thanks
Adrian

here's the thread

barry_mcki wrote:

madmax wrote:

avandr wrote:

madmax wrote:
Crash knobs (R&G are the only company who make these for the GSX1250FA)
I can swear by these, when coming home from the Cowra rally my bike decided to have a sleep on its left side. Crash knob saved the fairing from any damage.

Sorry this may sound basic however being new to this style of bike do you happen to have an image of what the crash nobs look like and where they are placed?
Thanks
Adrian

here's the thread

avandr wrote:One more question guys, perhaps this is normal however as I start to ride and I get to around 40kph I hear a noise coming up through the fairing from the front. Kind of noise you hear from a worn bearing or 4 wheel drive vehicle off road tyres on bitumen.
Its not from the engine as I pull the clutch in there is no change, it seems to intensify as speed increases. Weave the bike around a bit and not change either.
Could it be the fans free spinning?
Or could it be normal sound of wind coming up through the fairing.
Appreciate any comments.

Oh' I ordered the R&G sliders from Solomotorparts.com after seeing the bike down in the images above.  

Thanks
Adrian

Kiwisteve wrote:Could also be a bit of Bandit fairing buzz/rattle

Hammy wrote:Might be the propeller on top of your helmet spinning too fast.