What does this do? Is this for people that don't want to install smog block off plates?

 

no. the air flapper is closed until the bike hits 7500rpm. at that rpm the flapper opens allowing more air into the air box. removing the vacuum that opens and closes the flapper keeps the flapper open allowing full air flow at all times.

you can disable it with a flash of the ecu or you can remove it. I removed it and plugged the hole so I do not lose any air flow through the upper fairing. easy mod you can do in 30 min or so.

 

If i remove it ,i get any codes?

 

If you flash ecu n disable, no. You can unplug the sensor. If you have no flash you leave the sensor plugged in that is on the right side of your lcd display but you can disconnect the hoses from it.

Unless someone can chime in differently....

 

thanx

 

isn't that master cylinder rubber really soft and have a lot of "excess" material that will get pulled up and into the airflow? possibly being pulled out of the hole it's in because of the intake vacuum

I know ive seen a plug made for these somewhere but can't remember where.

dorman makes vacuum line caps btw. you can trace that hose to where it connects and cap off the nipple. don't trust a screw it's not going to seal properly and you end up with a vacuum leak causing poor engine performance or even a code popping up.

 

There is some excess rubber but not enough to flap and get sucked in the intake to the air filter. Although I did put silicon to hold it in place. No code yet thus far if any will happen.

I'm trying to wrap my head around this and understand from the information above.. If a person does have FT and you disable it, will this mean that it will be open 100% of he time and not need to get up to 7500rpm? Also, if my prévious question is true, then the only reason for removal with it disabled in FTECU would be for weight loss? Is this also a true statement?

Thanks,
-John

I do not have an ecu flash so the flapper was operating like normal until I removed it. If you have the flash this is only a weight savings move. both your statements are true but not in my situation due to no ecu flash.

 

I'm trying to wrap my head around this and understand from the information above.. If a person does have FT and you disable it, will this mean that it will be open 100% of he time and not need to get up to 7500rpm? Also, if my prévious question is true, then the only reason for removal with it disabled in FTECU would be for weight loss? Is this also a true statement?

Thanks,
-John

 

finally did this to mine. I thought it blocked the whole intake. it just blocks about 75% of it. the other 25% is an open channel below the flapper channel.
I cut out a pc of plastic about .020 thick and used a tiny bead of rtv around the opening to hold it in place and seal it.

man is that intake loud at certain rpms. I love the extra growl:boobies

 

Comon man you spent over $20,000 on a motorcycle and to save $22 you put something that looks horrible and not meant to go there on your bike.?

 

yup. :kiss:

 

me too. no one can see it. who cares. I bet someone would pay $250 if it said lightech on it.:icon_rolleyes:

 

What I did to seal off the hole was to get a water plug that you normally find on Jeeps floor. Fits like a glove and it's made from a decent thickness, so I 'm not scare of finding it in the air filter at some point !


and it looks OE

 

What is the purpose of the flapper?

 

I just used a Christmas tree style automotive push plug, worked perfect for 1.50

 

I have seen a kit for about 30bux

Here is the "kit" OP was on about:

https://www.mrpmotorsports.com/parts/2015-yamaha-yzf-r1-air-intake-plug.html

In case anyone didnt want to be cheap with their 20k brand new bike.:grin2:

 

this does the same thing as my screw, zip tie and reservoir seal. With my savings I was able to get more than two tanks of gas.

 

I spent $25 for that kit and saved a trip to the automotive store, saved myself the guesswork of what will actually work and got a proven solution that works well and looks good. Money well spent in my eyes.

To each their own fellas :thumbup

 

I spent $25 for that kit and saved a trip to the automotive store, saved myself the guesswork of what will actually work and got a proven solution that works well and looks good. Money well spent in my eyes.