F4i---Tape Airbox VS. Ram Air Tubes
Re: F4i---Tape Airbox VS. Ram Air Tubes
i have a stock 08 r6 exhaust and with or without one side covered, the bike bogs real bad. did the same think with a cut down 2 brothers also... dunno what the problem is. couldit be a bad map since my idle is a little jumpy? thing pulls like ****
but not i bent a piece of sheetmetal to cover the right side and i relocated my ignition there so its super out of the way. might aswell keep it lol
but not i bent a piece of sheetmetal to cover the right side and i relocated my ignition there so its super out of the way. might aswell keep it lol
i get no bog from my r6 pipe, do you have the clean air mod? the only time i get bog is when i accidently grab the HB hard and gas at the same time but thats just from the brake. i also tape one side this weekend and rode all weekend and noticed that the idle stayed more consistant but i have a k/n filter also.
Last edited by Ethiopian; Sep 22, 2008 at 12:14 PM.
Re: F4i---Tape Airbox VS. Ram Air Tubes
I think the only reason peolpe tape the air box, is because aftermarket filters like K&N flow TONS more air, and kill low end torque..
if you run a stock filter, it shouldn't make much difference how you run it..
but with a K&N, its better to tape one side..
Persoright side taped off lol..nally, I have all my wires shoved in the left side of my air box, and my
I personally don't notice any difference with the ram air tubes on, or taped air box, or no tape..
But I still tape my air box! And I also have 2 plates welded in my cut exhaust.. quiets the exhaust down, and should increase back pressure a lil bit, more like stock
if you run a stock filter, it shouldn't make much difference how you run it..
but with a K&N, its better to tape one side..
Persoright side taped off lol..nally, I have all my wires shoved in the left side of my air box, and my
I personally don't notice any difference with the ram air tubes on, or taped air box, or no tape..
But I still tape my air box! And I also have 2 plates welded in my cut exhaust.. quiets the exhaust down, and should increase back pressure a lil bit, more like stock
i do the same,,, they fit in perfect,
Re: F4i---Tape Airbox VS. Ram Air Tubes
I waded up a bunch of newspaper and shoved in one of the sides of my airbox a while back at the lot just cuz it was all I had.
it actually helped the way my bike was pullin...
(snorkels off)
It's still in there too... LOL
it actually helped the way my bike was pullin...
(snorkels off) It's still in there too... LOL
Re: F4i---Tape Airbox VS. Ram Air Tubes
i get no bog from my r6 pipe, do you have the clean air mod? the only time i get bog is when i accidently grab the HB hard and gas at the same time but thats just from the brake. i also tape one side this weekend and rode all weekend and noticed that the idle stayed more consistant but i have a k/n filter also.
but, the blockoff also holds my ignition so that aint goin anywhere lol
Re: F4i---Tape Airbox VS. Ram Air Tubes
stock filter and no clean air mod and i run a -2 front with a 58 rear. i get bog doin idle stuff and when the idle drops it doesnt come back up. idle doesnt hold. who the **** knows... ill just wind up buying a map sensor at some point.
but, the blockoff also holds my ignition so that aint goin anywhere lol
but, the blockoff also holds my ignition so that aint goin anywhere lol
Also, i noticed when my throttle bodies were out of sync the bike didn't idle very well. I synced them up and it pulled and no bog.
Maybe try that. I'm not up on all the electronics on those new bikes though. To me that is too much **** to mess with for stunting. Way too much to go wrong with electronics. I think the 08 r6's are throttle-by-wire also which is a joke. I'd rather tell the bike what to do than have the ECU deside if i'm giving it too much throttle or whatever.
Re: F4i---Tape Airbox VS. Ram Air Tubes
I need to sync mine, my idle jumps all over the place.
Re: F4i---Tape Airbox VS. Ram Air Tubes
well, you need to figure out if it's a lean bog or flood bog.
Also, i noticed when my throttle bodies were out of sync the bike didn't idle very well. I synced them up and it pulled and no bog.
Maybe try that. I'm not up on all the electronics on those new bikes though. To me that is too much **** to mess with for stunting. Way too much to go wrong with electronics. I think the 08 r6's are throttle-by-wire also which is a joke. I'd rather tell the bike what to do than have the ECU deside if i'm giving it too much throttle or whatever.
Also, i noticed when my throttle bodies were out of sync the bike didn't idle very well. I synced them up and it pulled and no bog.
Maybe try that. I'm not up on all the electronics on those new bikes though. To me that is too much **** to mess with for stunting. Way too much to go wrong with electronics. I think the 08 r6's are throttle-by-wire also which is a joke. I'd rather tell the bike what to do than have the ECU deside if i'm giving it too much throttle or whatever.
my bike use to bog like a mother ******(I kept ******* my bike up too, because in O's Id hit the gas,nothing happen,gas it more, then 1/2 second later the power would kick in so fast the bike would rip right outta my hands) but then I broke my thumb and foot and didnt ride for 4 months, and now its got like 636 throttle response
I need to sync mine, my idle jumps all over the place.
I need to sync mine, my idle jumps all over the place.
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Re: F4i---Tape Airbox VS. Ram Air Tubes
my F4 definately bogs with no ducts but then again it generally runs a bit rich with my chopped stock exhaust so it would probably pull hard if i re-jet and tune my carbs for a new setup
Re: F4i---Tape Airbox VS. Ram Air Tubes
bike runs a little rich from the exhaust, but not too much. its an 02 f4i with only an r6 pipe... should be close to stock backpressure.
yes, you are true here
thats what the bikes been doin. i can hear it bog, then it jumps like a second later. its ******* annoying! even if i turn the idle up higher, it slowly creeps back down to like 2500. it must be the east coast in the bike wanting to run low rpms
yes, you are true here
thats what the bikes been doin. i can hear it bog, then it jumps like a second later. its ******* annoying! even if i turn the idle up higher, it slowly creeps back down to like 2500. it must be the east coast in the bike wanting to run low rpms

so no other mods to it?
Throttle bodies being out of sync can cause this jumping.
Also, are you using the stock idle? the stock idle is tied into electronics and the autochoke. It usually pulses and doesn't stay steady. You need to get another throttle cable and run it between the 2 and 3 throttle bodies. That makes a huge difference. Once you have that done, make sure that the new idle control is set so it doesn't change anything, then adjust the stock idle so the bike is normal idle (1200-1500 or so) then from there you can start using your new idle cable.
If the original idle isn't set good, as in it's set too low and you start messing with the secondary cable then it won't be steady. Tony had this problem the other day on his new f4i and i started messing with things and found the stock idle was around 600 rpms. adjusted it and bam, good to go.
I would definitely get the throttle bodies synced though. that seemed to help a great deal with my f4i.
Also, something that helped my bike a little, well, noticeably, was the oil pickup. People are skeptical on this, but when i added it it did make the bike much smoother. stuntex oil pickup is what i have in it. Tony (crazy636stunter) can attest to this because he's rode mine, his, and *****'s f4i and mine is the only one with it.
anyways, there ya go. hit me up and let me know if you get the problem solved. My 929 was that way and it was annoying.
Re: F4i---Tape Airbox VS. Ram Air Tubes
Stock sprockets stock original air cleaner no tubes. wires and harnesses stuffed in the left side, right is open . micron exhaust cut and uncut.. I only get the "bog" mabe once a day out at the lot.. just clutch it and save it.. you will get use to it. I wouldent worry about it.
Re: F4i---Tape Airbox VS. Ram Air Tubes
so no other mods to it?
Throttle bodies being out of sync can cause this jumping.
Also, are you using the stock idle? the stock idle is tied into electronics and the autochoke. It usually pulses and doesn't stay steady. You need to get another throttle cable and run it between the 2 and 3 throttle bodies. That makes a huge difference. Once you have that done, make sure that the new idle control is set so it doesn't change anything, then adjust the stock idle so the bike is normal idle (1200-1500 or so) then from there you can start using your new idle cable.
If the original idle isn't set good, as in it's set too low and you start messing with the secondary cable then it won't be steady. Tony had this problem the other day on his new f4i and i started messing with things and found the stock idle was around 600 rpms. adjusted it and bam, good to go.
I would definitely get the throttle bodies synced though. that seemed to help a great deal with my f4i.
Also, something that helped my bike a little, well, noticeably, was the oil pickup. People are skeptical on this, but when i added it it did make the bike much smoother. stuntex oil pickup is what i have in it. Tony (crazy636stunter) can attest to this because he's rode mine, his, and *****'s f4i and mine is the only one with it.
anyways, there ya go. hit me up and let me know if you get the problem solved. My 929 was that way and it was annoying.
Throttle bodies being out of sync can cause this jumping.
Also, are you using the stock idle? the stock idle is tied into electronics and the autochoke. It usually pulses and doesn't stay steady. You need to get another throttle cable and run it between the 2 and 3 throttle bodies. That makes a huge difference. Once you have that done, make sure that the new idle control is set so it doesn't change anything, then adjust the stock idle so the bike is normal idle (1200-1500 or so) then from there you can start using your new idle cable.
If the original idle isn't set good, as in it's set too low and you start messing with the secondary cable then it won't be steady. Tony had this problem the other day on his new f4i and i started messing with things and found the stock idle was around 600 rpms. adjusted it and bam, good to go.
I would definitely get the throttle bodies synced though. that seemed to help a great deal with my f4i.
Also, something that helped my bike a little, well, noticeably, was the oil pickup. People are skeptical on this, but when i added it it did make the bike much smoother. stuntex oil pickup is what i have in it. Tony (crazy636stunter) can attest to this because he's rode mine, his, and *****'s f4i and mine is the only one with it.
anyways, there ya go. hit me up and let me know if you get the problem solved. My 929 was that way and it was annoying.
ill try all this stuff and let you know what happens. bikes all apart for paint anyways
Re: F4i---Tape Airbox VS. Ram Air Tubes
Re: F4i---Tape Airbox VS. Ram Air Tubes
sorry to dig up this thread but i'm asking this for my buddy...
he has a F4i wich he bought with a full acrapovic exhaust, when the bike was full fairing it ran great, but now that its streetfighter its idles like crap and runs shitty... could this have something to do with the ram air ducts not being on the bike??? the bike has every mod done to it (clean air, idle mod, tip sensor) and has a stock air filter... we also tried taping one hole off the airbox but that didnt fix the problem...
thanks in advance, Kristoff
he has a F4i wich he bought with a full acrapovic exhaust, when the bike was full fairing it ran great, but now that its streetfighter its idles like crap and runs shitty... could this have something to do with the ram air ducts not being on the bike??? the bike has every mod done to it (clean air, idle mod, tip sensor) and has a stock air filter... we also tried taping one hole off the airbox but that didnt fix the problem...
thanks in advance, Kristoff
Re: F4i---Tape Airbox VS. Ram Air Tubes
I was at the little spot by my house tonight on my newly acquired F4i.
I tested idle with the ram air tubes on and then with one on and the other side taped off.
i switched about four times in an hour and a half. It felt better on idle (harder & smoother) to me with them on, and felt not as sluggish just riding with them on too.
I know of at least 3 people I ride with that have one side taped off, I dont see the hype?
I remember seeing some posts a while back where Borne was swearing that leaving the ram air tubes on pulls better idle and overall runs better.
anyway Im gonna test it again tomorrow, just wanted to get some opinions on the matter from those who HAVE TRIED BOTH.
I tested idle with the ram air tubes on and then with one on and the other side taped off.
i switched about four times in an hour and a half. It felt better on idle (harder & smoother) to me with them on, and felt not as sluggish just riding with them on too.
I know of at least 3 people I ride with that have one side taped off, I dont see the hype?
I remember seeing some posts a while back where Borne was swearing that leaving the ram air tubes on pulls better idle and overall runs better.
anyway Im gonna test it again tomorrow, just wanted to get some opinions on the matter from those who HAVE TRIED BOTH.
Re: F4i---Tape Airbox VS. Ram Air Tubes
no real idle issues but had to put a silencer tip in to decrease angry phone calls from neighbours. the idea about the map sensor may be true.....my bike just runs like **** in 4-5th gear at cruising speeds and that's a back pressure problem....running your wires through the air ducts shouldn't choke off the intake air, most stunters are doin wheelies at low speeds anyways
i think i'm putting my wires through the duct too and re-packing the tailpipe...
i think i'm putting my wires through the duct too and re-packing the tailpipe... Re: F4i---Tape Airbox VS. Ram Air Tubes
if you cut ur stock pipe you may not be able to buy one yet if you drill out ur rivets and re-pack ur pipe it may help to keep the cops off ur tail ...i'm actually really surprised i havn't gotten a noise violation yet.









