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Discussion Starter #1
before we get started...i missed a couple pics. kinda got ahead of myself (in the wrench zone)



remove the left body panel and there you can see the charcoal canister



it has 2 vent tubes that are channeled through the rear of the frame and come out in front of the rear wheel. feed those back up to the canister and pull them free


there is also a vent hose coming from the tank, disconnect that.

look for the vent hose on the manifold



remove that and cap it with a plug



disconnect the hoses running to the sensor and disconnect the plug

remove the canister from the bracket

using a 5mm allen remove the 2 bolts holding the bracket to the frame

with the bracket off of the frame remove the 2 screws holding the sensor to it. they were tight so you might need to place it on the ground to get a good turn with pressure behind it.

cap of the ends of the sensor. i bought the wrong size caps so i cut some of the vent hose to squeeze them over the caps. (temp set up)



reconnect the plug to the sensor and using 1 of the 2 bolts you removed from the bracket, bolt the sensor to the frame



and your done




i removed the airbox at the same time and here you can see about 3 lbs worth of removed parts

 

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With the hose left over you should have enough to get the vent it under the bike..I went in the stock location as the old vent,,down by the shock and swing arm.
I assume if the bike got dumped there will be fuel coming out so rather have it there then all over the place.
 

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Discussion Starter #5
Lenny, I removed the sensor and the bracket too. No warning lights, runs great, and took that much more weight off. Grab you a dirtbike gas cap check valve and toss on the tank.
perfect! i didn't even think about that....thanks for the heads up
 

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Lose extra weight I'm guessing, and remove excess parts that can possibly break, or be damaged. Simplify things in a way.

The canister's main job is to be able to filter the excess air pressure in the fuel tank, so it doesn't build up pressure and break something. Removing it, would leave a line open from the gas tank, and you would smell fuel every once in a while when temperatures are hot, or when you have a full tank and fuel seems to find it's way up to the line's vent. (if it even can..)

Then when you're riding, there is typically a valve that opens, and lets the vapors/air from the canister go back into the intake manifold via that vacuum line that he capped.

:)
 

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Lenny, I removed the sensor and the bracket too. No warning lights, runs great, and took that much more weight off. Grab you a dirtbike gas cap check valve and toss on the tank.

So you kept the sensor on at first ? Then decided to remove it? Or is it a different sensor?
I wanna do this, i just wanna be clear. Thanks


Sent from my iPhone using HondaGrom.net mobile app
 

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Nice work guys, will be stripping parts off tonite! Try turning the efi body 180 degrees also. It faces it forward and tucks under left cowling nicely. See my album or build.


Sent from my iPhone using HondaGrom.net
 

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It's strictly for emissions requirements, specifically to make it 50 state compatible. CA requires those ash cans on everything and has for years. It doesn't hurt performance, but weighs maybe a pound or two and takes up a fair bit of space.

The "sensor" is actually just a solenoid valve. It opens when the engine is running and shuts when it's off- why it doesn't trip the check engine light when you remove it. So the can filters vapors when the motor is off, and allows the engine to draw in and burn stored vapors when it starts.

The stock fuel cap has a check valve- lets air in, but not out. Any expansion goes out the tank vent port to the charcoal can. I would probably re-run the vent line back out to the stock location after the can is removed. If the bike tips over, or you overfill the tank and then park it in the sun, it won't dribble gas out to leak down all over the engine and route it out onto the ground.
 

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After removing the air box what have u guys done with the front faring to brace it, since the stock air box holds the mounting bracket ?
 

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what about the crankcase breather line that goes to the air box? i routed mine to the vaccum line coming off of the throttle body is this safe ?
 
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