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Speed Freak
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Hey guys and gals, was p at 4:30am today to drive someone to the airport but after I got home I didnt feel like sleeping so I went out to the garage. Since the last time I was under the tank of my bike I blocked off the Air valve that lets fresh air enter the exhaust stream (which is for emission purposes) Well I tried to just leave the air valve unplugged but the bike seems to set a FI light and from what I found online this is the same for any 2008, 2009, 2010, and 2011 zx10r.

So after doing some more research I found that the suzuki guys came up with a very simple soultion to removing this air valve which takes up space and some weight (maybe a few ounces?) The Air valve calls for 20-24 Ohms in the service manual so a simple solution would be to run a 20 ohm 10 watt resistor in place of this valve. The problem I ran into was that radio shack only sold 10 ohm 10 watt resistors, they are $1.99 for a 2 pack so what you can do is run the resistors in series to double the resistance.... simple enough?

Below is the steps I did to install this. You can obviously use your own imagination if you wish to do this a different way, I Thought I would just share this with you guys.



Hers a pic of the air valve, once unplugged its sorta pesky to keep unter the airbox and really not needed since nothing is there...



Here is a picture of the resistors, 2 10 ohm's ran in series to create 20 ohms resistance, I just twisted the ends togehter and bent it back over the ceramic body and tapped it up




air valve next to resistor


I then pushed the other sides of the resistor into the plug and bent the resistor to the side, I had to trip a tiny bit of the plug side wires but it fit perfectly on the side




Next I taped the resistor to the plug nice and snug and tucked it away, pic of the plug taped and picture of plug next to air valve to show size difference.





Well there you have it, the plug will see 20 ohms resistance and you will not have a FI light on your bike being set for Air valve gone.

Costs $2 dollars for the resistors at radio shack and takes maybe 30 min's to pop off the tank and air box to do this.

Enjoy :thumbsup:
 

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good to know. it looks kinda ugly though. do you think it really needs those powerful resistors? couldnt you use something smaller? im not sure whats in that valve. is there some kind of a coil inside?
 

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Did you try to just connect the 2 wires together without the resistors? Thats all you have to do on the 08-10's, no need for resistors........
 

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I'd suggest multiple layers of heat shrink over tape. Electric tape will become goo if those resistors take any heat. ...but if the above post is true about a resistor not being needed, then they'll likely never get warm. Having the resistors there is cheep insurance to not damage the ECU, I'd leave them and not chance it. :dontknow:
 

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I'd suggest multiple layers of heat shrink over tape. Electric tape will become goo if those resistors take any heat. ...but if the above post is true about a resistor not being needed, then they'll likely never get warm. Having the resistors there is cheep insurance to not damage the ECU, I'd leave them and not chance it. :dontknow:
:+1: Indeed!
 

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No resistors needed for 08-10, I know countless guys who have jumped the terminals with wire or even a paper clip and have had no problems.
 

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Hi Shaun :hello:

Tx for the share

Maybe I can help to explain why 10 Watts resistors are needed.

Power = Current 2 * Resistance

Current = Voltage / Resistance

Therefore Voltage 12 / coil 20 = 0.6 Amps ( 600 mA )current
Power = 0.6*0.6*20= 7.2 Watts so power resistance that is required should be 7.2 W you say , but...


The voltage during high revs normally increases and goes up to a max if I am correct to 13.8 Volts so....

one has to calculate the MAX power required at that voltage. follow first steps again and you will obtain the following.

Current = 13.8 /20 = 0.69 Amps this time.

Power = 0.69 * 0.69 * 20 = 9.52 Watts, so that is why Garth used 10 watts resistors, correct Shaun.

Hope this helped why you need 10 watts resistors. :mrgreen:

Best regards Jo :smile:
 

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Hi Shaun :hello:

Tx for the share

Maybe I can help to explain why 10 Watts resistors are needed.

Power = Current 2 * Resistance

Current = Voltage / Resistance

Therefore Voltage 12 / coil 20 = 0.6 Amps ( 600 mA )current
Power = 0.6*0.6*20= 7.2 Watts so power resistance that is required should be 7.2 W you say , but...


The voltage during high revs normally increases and goes up to a max if I am correct to 13.8 Volts so....

one has to calculate the MAX power required at that voltage. follow first steps again and you will obtain the following.

Current = 13.8 /20 = 0.69 Amps this time.

Power = 0.69 * 0.69 * 20 = 9.52 Watts, so that is why Garth used 10 watts resistors, correct Shaun.

Hope this helped why you need 10 watts resistors. :mrgreen:

Best regards Jo :smile:
makes sense. you, however, are running under the assumption that the voltage supplied to this valve is the same as that of the battery/charging system, which may or may not be the case. did somebody measure it?
 

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makes sense. you, however, are running under the assumption that the voltage supplied to this valve is the same as that of the battery/charging system, which may or may not be the case. did somebody measure it?
Hi Mityaz :hello: nice to know you.

No from my side I did not had ever the reason to measure for this application, but by all other measures taken on different applications still if it is an analogue Voltage ( that is variable supply voltage which I doubt it is ) still would go up to the peak mentioned voltage.

But yes I would like to have a clear answer if Shaun has measured it, somhting more to learn :smile:

regards Jo:mrgreen:
 

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well all that is nice. Wow how we like to get technical :^). all i did on my 08 was place a blockage into the hose coming from the air filter then just put the hose back on. Result, no air enters the exhaust, still looks stock, no hose cutting,and no FI lite. I just like the K.I.S.S method:wink:
 

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well all that is nice. Wow how we like to get technical :^). all i did on my 08 was place a blockage into the hose coming from the air filter then just put the hose back on. Result, no air enters the exhaust, still looks stock, no hose cutting,and no FI lite. I just like the K.I.S.S method:wink:
Hi Trench

somthimes the simpler the better :mrgreen: and if work it works.

sorry maybe sounds strange but you know different contries different says. what does it mean K I S S not kiss for shure :crackup: sorry not my type.

regards jo
 

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Hi Bandana, K.I.S.S is a acronym for Keep. It. Simple. Stupid, now with that said by no means am i applying anyone here was or is stupid :^). Its just a saying.
 

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Option #2- Leave the valve as is and just route the crank case breather to the inlet on the valve. Then you have a crank case evac and it won't pop on decel. Helps make power too.:thumbsup:
 

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:badteeth::mrgreen::badteeth:
 

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Speed Freak
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Discussion Starter #15
Did you try to just connect the 2 wires together without the resistors? Thats all you have to do on the 08-10's, no need for resistors........
wish I would have known that before hand lol..... didn't feel like risking shorting anything so went the resistor way, if I can just jump the wires I would be happy as well but I searched online here and didn't find anything.

Have you done this your self?
 

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wish I would have known that before hand lol..... didn't feel like risking shorting anything so went the resistor way, if I can just jump the wires I would be happy as well but I searched online here and didn't find anything.

Have you done this your self?
I have. I know others have as well. I believe I seen it in Tenn10's writeup as well.
 

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From looking at your pic it looks identical to the air valve from my 08. I'm mechanical as hell but when it comes to electrical I get a little queezy so way to go for experimenting lol. I just forked over for ivans block offs and it came with the resistor, nice and neat. I have a buddy that has his jumped with wire and it's been running fine all last season.
 

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On my K7 1000 I went with a 1ΚΩ 1/4 W resistor... It's so small it fits inside the female plug and it's safer than shorting the 2 wires... Also it only draws a little current and it doesn't get hot,and it keeps the ECU from throwing a code...

There is no real need for 20 W resistors... :thumbsup:
 
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