Air Induction System Removal

[Peter Murray]

Detailed info by Wicked Webby and others, Thanks !

https://www.fjrforum.com/forum/index.php?showtopic=106119

Just wanted to point out the air induction system rubber bypass caps I used. Napa part #660-1696 Bypass Caps Cost $5.95 for 2 packs. Note : The stock hose clamps are to small, I had extra clamps you may need to pick some up.

Sure does clean things up, Nowto resync the TB'S.

 

[Peter Murray]

Still ironing out my picture posting skills, hope this is full size.

 

[pcarnut]

Just in the process of removing my CAI and so this thread is timely. What's with the remote vacuum canister? Is this a home-brew version of what Yamaha used to add to their bikes and does it make a difference?

 

[RadioHowie]

Just in the process of removing my CAI and so this thread is timely. What's with the remote vacuum canister? Is this a home-brew version of what Yamaha used to add to their bikes and does it make a difference?

That's a vacuum reservoir for an Audiovox Cruise Control.

 

[pcarnut]

Ahh, got it. Thanks!

 

[RadioHowie]

Just be aware those NAPA bypass caps have a bad habit of cracking and splitting quickly due to the heat from the motor.

Documented many times on the forum.

 

[pcarnut]

Thanks for the tip. Made some block-off plates so hopefully no issues. But while we're talking about removing crap, I was going to remove the charcoal canister in the chin but have had no luck with searches for this diy. Any suggestions?

Edit. Changed my search parameter to just "Charcoal" and got some hits. I'll muddle through them and see what's up.

 

[pcarnut]

Thanks for the tip. Made some block-off plates so hopefully no issues. But while we're talking about removing crap, I was going to remove the charcoal canister in the chin but have had no luck with searches for this diy. Any suggestions?

Edit. Changed my search parameter to just "Charcoal" and got some hits. I'll muddle through them and see what's up.

Okay, I think I've got this figured out. Went to this thread: https://www.fjrforum....=1

Post #16 says to plug the line that goes to the top of the canister but both hoses go to the side. One is a little higher up though, and has what appears to be a check valve in it (roll-over valve?), I believe this is the one to plug so no air is pulled in by the throttle bodies? And the other is left to vent? Any reported issues cropped up since this was posted?

 

[escapefjrtist]

To keep the Napa caps from cracking, put some hi-temp silicone in them before installing. The silicone will plug off the hot gasses and protect the rubber.

After removing the charcoal canister, you'll need to "tee" two lines together under the left rear of the tank. Check out the parts fiche for details and routing.

--G

 

[smellthat?]

Get the WynPro covers - and never have to worry about cracking, splitting caps. Easy 5 minute install. Look in the group buy section.

 

[pcarnut]

Thanks escapefjartist, I saw that some add a tee but not sure why it makes a difference unless to remove one of the lines for less clutter, otherwise why not just let two lines vent to atmosphere?

quote name='smellthat?' timestamp='1302460140' post='845452']

Get the WynPro covers - and never have to worry about cracking, splitting caps. Easy 5 minute install. Look in the group buy section.

Made some covers, so won't be an issue, thank you for the heads up.

 

[Peter Murray]

To keep the Napa caps from cracking, put some hi-temp silicone in them before installing. The silicone will plug off the hot gasses and protect the rubber.

After removing the charcoal canister, you'll need to "tee" two lines together under the left rear of the tank. Check out the parts fiche for details and routing.

--G

+1 Silicone.

Any way how bad could it be if they crack ? Seems like some air could pass and make it's way to the exhaust port, curious? Exhaust pop

Time will tell how they hold up. I will be inspecting on a annual basis along with other annual maintenance.

 

[lharrell79]

What are the benefits of doing both of these mods? Are there any drawbacks to either?

Thanks, Lucas

 

[RadioHowie]

What are the benefits of doing both of these mods? Are there any drawbacks to either?

Thanks, Lucas

Performance benefits = Zero

Drawbacks = you'd probably fail an emissions test

Minor benefit = less chance for exhaust "popping" (backfires) on decel

Major benefit = cleans up a bunch of junk on the top of the motor

That's about it. It's pretty much an aesthetics modification.

 

[escapefjrtist]

Thanks escapefjartist, I saw that some add a tee but not sure why it makes a difference unless to remove one of the lines for less clutter, otherwise why not just let two lines vent to atmosphere?

You hit it. The two lines could just vent, but adding a tee reduces a line and cleans up the plumbing a little. After all, isn't that why we've removed the junk in the first place...

--G

 

[pcarnut]

Thanks escapefjartist, I saw that some add a tee but not sure why it makes a difference unless to remove one of the lines for less clutter, otherwise why not just let two lines vent to atmosphere?

You hit it. The two lines could just vent, but adding a tee reduces a line and cleans up the plumbing a little. After all, isn't that why we've removed the junk in the first place...

--G

Okay, thanks. I"ll just leave the two lines then. Since they are hidden, not much benefit to going back in there to do the tee.