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 About the Airbox Flapper

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taoshum
Corprin
njbill
2goose
motokid
Big-t
Mr.Metal
SheWolf
clint
angelWR
14 posters
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angelWR

angelWR



About the Airbox Flapper Empty
PostSubject: About the Airbox Flapper   About the Airbox Flapper EmptySun Jun 20, 2010 4:28 pm

Just to confirm that the flapper is stuck tight. It's OK?
Thanks

About the Airbox Flapper Dsc03436b
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clint





About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptySun Jun 20, 2010 5:08 pm

looks okay!
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SheWolf
Alpha Rider
SheWolf



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 10:33 am

That's how mine looked after I siliconed it. thumb

_________________
A wolf's voice echoed down the mountain 'Share the bounty of the hunt with your brothers and sisters, and forever be strong and free.' About the Airbox Flapper Wolf_b10
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angelWR

angelWR



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 12:48 pm

Thank you, now I am sure.
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Mr.Metal

Mr.Metal



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 2:11 pm

There is really no reason not to gut the airbox. If I can do it, anyone can do it About the Airbox Flapper 61865
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Big-t





About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 2:18 pm

Seems like a lot of work.I just put a BB in the vacuum line at the servo.door stays open all the time since there is no vacuum to operate it.....
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angelWR

angelWR



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 5:02 pm

What is BB ?? About the Airbox Flapper 986936
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Mr.Metal

Mr.Metal



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 5:13 pm

You did what? About the Airbox Flapper 640571

Dude... I know you're going to say "it's not going to come loose," but that just sounds like a bad idea all around.

Gutting the airbox was not a lot of work. Took all of like half hour maybe.


Big-t wrote:
Seems like a lot of work.I just put a BB in the vacuum line at the servo.door stays open all the time since there is no vacuum to operate it.....
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motokid
Moderator
motokid



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 6:08 pm

angelWR wrote:
What is BB ?? About the Airbox Flapper 986936

Like a small ball bearing. It's often shot from an air-rifle.

_________________
2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs
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motokid
Moderator
motokid



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 6:09 pm

Big-t wrote:
Seems like a lot of work...

It's not really. Plus..you open up space under seat for other tid-bits of joy and happiness. About the Airbox Flapper 61865

_________________
2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs
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Mr.Metal

Mr.Metal



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 8:17 pm

What motokid said. I have serious OCD, so cleaning up the under-the-seat area felt soooooo good. Where that damn solenoid used to be, I now have my FMF programmer. And there is plenty of space for the 3CS too. And it's so clean and pretty! About the Airbox Flapper 93746

motokid wrote:

It's not really. Plus..you open up space under seat for other tid-bits of joy and happiness. About the Airbox Flapper 61865
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2goose





About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 8:52 pm

I forgot---why do we want to remove this flapper ?
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SheWolf
Alpha Rider
SheWolf



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 9:13 pm

More airflow into the airbox. thumb

_________________
A wolf's voice echoed down the mountain 'Share the bounty of the hunt with your brothers and sisters, and forever be strong and free.' About the Airbox Flapper Wolf_b10
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njbill

njbill



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 9:50 pm

I cut a big hole in the top of my air box. I do not think having the flapper permanently open provides enough air.
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Corprin

Corprin



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 10:15 pm

Is there some way to tune for the added airflow without a tuner? I was reading somewhere (lost the link) about a way to hack into the ECU under diagnostic mode, and adjust the mixture... as one would with a pilot screw.
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Mr.Metal

Mr.Metal



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyMon Jun 21, 2010 11:13 pm

I don't believe you can really adjust much in that diagnostic mode. A tuner really is the way to go. Tuners are relatively cheap, engines are not.

Corprin wrote:
Is there some way to tune for the added airflow without a tuner? I was reading somewhere (lost the link) about a way to hack into the ECU under diagnostic mode, and adjust the mixture... as one would with a pilot screw.
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taoshum

taoshum



About the Airbox Flapper Empty
PostSubject: yes, airflow   About the Airbox Flapper EmptyTue Jun 22, 2010 2:35 am

SheWolf wrote:
More airflow into the airbox. thumb

seems like a good idea... other than weight redux is there a performance gain or mpg increase, a leaner mixture, a hotter engine, ... if it is all beneficial to get rid of it, why would Yam a Mama spend the time, effort and expense of installing it?.

Same Q for the exhaust servo?

I just want a super reliable moto that will get me there, in one piece. Gotta fix the range problem though...

thanks, Gary
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Mr.Metal

Mr.Metal



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 2:48 am

These days, a lot of these systems are engineered and installed at the factory to meet strict regulations. Mostly noise and emissions in EU and in CA and some other states. Also, the bike is tuned conservatively to make it as reliable as possible.

Now, having said that, doing these mods can't really make the bike less reliable, if you don't go crazy or screw something up. The engine is starving for air and choking on a plugged-up exhaust, which is why doing these mods actually has a net effect. May members have done both air intake and exhaust mods, and I don't believe we've seen any reliability issues. About the Airbox Flapper 619190

taoshum wrote:

seems like a good idea... other than weight redux is there a performance gain or mpg increase, a leaner mixture, a hotter engine, ... if it is all beneficial to get rid of it, why would Yam a Mama spend the time, effort and expense of installing it?.

Same Q for the exhaust servo?

I just want a super reliable moto that will get me there, in one piece. Gotta fix the range problem though...

thanks, Gary
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Dancamp





About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 6:16 am

Does the flapper keeps water out in case of a fall during river crossing ?
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motokid
Moderator
motokid



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 6:18 am

Dancamp wrote:
Does the flapper keeps water out in case of a fall during river crossing ?

No. The flapper is only closed at certain rev levels. You have a lean sensor that shuts bike off when horizontal.

When bike is not running flapper is open.

_________________
2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs
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Big-t





About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 8:37 am

Quote :
You did what? About the Airbox Flapper 640571

Dude... I know you're going to say "it's not
going to come loose," but that just sounds like a bad idea all around.

30 to 40 years of defeating some of the most useless crap installed on cars,I find the simple mods work the best and they are reversible.

Just saying,it seems like a simple solution as opposed to gluing the door shut,that is assuming you have enough sense to use a large enough BB.... About the Airbox Flapper 851577


I'm old school,really appreciate reading all the mods,but I also like to test each mod as I go to see what works for me as opposed to just ripping it all out and then trying to sort it out.
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Corprin

Corprin



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 1:15 pm

Mr.Metal wrote:
I don't believe you can really adjust much in that diagnostic mode. A tuner really is the way to go. Tuners are relatively cheap, engines are not.

Who would have thunk it, it was in this forum all along!

https://wr250rforum.forumotion.com/wrr-general-discussion-f3/wr-taco-in-diagnostic-mode-t1141.htm

discuss.
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SheWolf
Alpha Rider
SheWolf



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 1:33 pm

It's there for a reason. I dialed mine in and it helped with smoothing things out.

_________________
A wolf's voice echoed down the mountain 'Share the bounty of the hunt with your brothers and sisters, and forever be strong and free.' About the Airbox Flapper Wolf_b10
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Corprin

Corprin



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 4:38 pm

SheWolf wrote:
It's there for a reason. I dialed mine in and it helped with smoothing things out.

When I bought my bike it came with the baffle removed from the pipe. I figured the slight cough each time I goosed the throttle was caused by this, so I reinstalled the baffle. Viola, the problem was rectified. After reading that thread, I am still left with a couple questions. First and foremost, if I remove that baffle again, would the CO adjustment be proper to get the idle and throttle response back?
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angelWR

angelWR



About the Airbox Flapper Empty
PostSubject: Re: About the Airbox Flapper   About the Airbox Flapper EmptyTue Jun 22, 2010 5:37 pm

Big-t wrote:
Quote :
You did what? About the Airbox Flapper 640571

Dude... I know you're going to say "it's not
going to come loose," but that just sounds like a bad idea all around.

30 to 40 years of defeating some of the most useless crap installed on cars,I find the simple mods work the best and they are reversible.

Just saying,it seems like a simple solution as opposed to gluing the door shut,that is assuming you have enough sense to use a large enough BB.... About the Airbox Flapper 851577


I'm old school,really appreciate reading all the mods,but I also like to test each mod as I go to see what works for me as opposed to just ripping it all out and then trying to sort it out.

I'm old school too, therefore look carefully to make mods. This very well explained:

http://www.wrrdualsport.com/tech-guide/air-intake/68-flapperrem

but my problems with the language made me doubt, as in this forum there are good people, did not think someone would have any problem. I think that is a simple mod.
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About the Airbox Flapper Empty
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