HTEV valve question - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

User Tag List

Reply
 
LinkBack Thread Tools
post #1 of 28 Old 05-18-2005, 10:05 PM Thread Starter
 
Join Date: 05-11-2005
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question


Last edited by tglass; 05-27-2005 at 5:10 PM.
tglass is offline  
Sponsored Links
Advertisement
 
post #2 of 28 Old 05-18-2005, 10:59 PM
 
Join Date: 08-06-2004
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

tglass,
don't know if this will help, but here are some pics from my 954 of the whole exhaust removed. I put a full hindle on. the HTEV valve is the big metal thing after the headers with the cables coming off of it. the servo motor, on a 954 is on the left side, above the idle adjustment. that is what the other picture is of. you can see were the cables from the HTEV valve connect to the servo (at the top.) I would assume that the 929 is almost the same. As for the HTEV valve and the purpose, there have been many post on it. You'll find pro's and con's for it. I believe its up to you if you want it on the bike or if it does good/bad. hope this helps.

Last edited by umac13; 03-05-2009 at 6:54 PM.
umac13 is offline  
post #3 of 28 Old 05-19-2005, 12:53 PM Thread Starter
 
Join Date: 05-11-2005
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Yeah that does help a little, Thanks! I talked to the guy I bought the bike from and he said the only thing that he took off were the cables that attatch to the HTEV valve. I don't think they are included in the setup that I bought so I guess I will need to buy new cables.
tglass is offline  
Sponsored Links
Advertisement
 
post #4 of 28 Old 05-19-2005, 1:06 PM
 
CBR929RE's Avatar
 
Join Date: 05-06-2004
Location: Randolph, MA
Age: 38
Posts: 12,773
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 39
                 
Send a message via AIM to CBR929RE
Re: HTEV valve question

just curious why you would want to go back to stock when it has a full system?

if you can't convince them, confuse them.
CBR929RE is offline  
post #5 of 28 Old 05-19-2005, 2:18 PM
 
Join Date: 12-21-2004
Posts: 167
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Quote:
Originally Posted by CBR929RE
just curious why you would want to go back to stock when it has a full system?

+1 ????
fst929 is offline  
post #6 of 28 Old 05-19-2005, 7:19 PM
 
Join Date: 07-30-2002
Posts: 332
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Perhaps prepping it for sale?
Supperconductor is offline  
post #7 of 28 Old 05-19-2005, 8:48 PM
 
Join Date: 02-05-2005
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Well, the servo for the HTEV also runs the air intake valve in the air box on the 929. It is a little servo motor located on the kickstand side of the bike where the middle cowl ends. Look up under the frame and you will see it assuming it is still there. It will have this round pulley on it with braided steel wires on it. Two wires go the the HTEV and one to the air box flapper. The Htev has 3 positions. Honda calls it the 90 degree position where cylinders 1 and 4 dump into the stream of 2 and 3 respectively below 3k rpm. Above 3k rpm it then goes to 180 where each cylinder goes out its own hole with no mixing. Above 8k it goes to 360 where 1 and 2 cross flow and 3 and 4 cross flow. The flapper vavle is closed at low RPM to maintain a constant velocity carb type feeling and open at high.

I hope that helps,

Rob
929rrob is offline  
post #8 of 28 Old 05-23-2005, 5:28 PM Thread Starter
 
Join Date: 05-11-2005
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

I went back to the stock exhaust with a Jardine slip-on because of the bottom end lag in the throttle 0-3000 RPM. I put a PCIII on but it still didn't eliminate the low end bog. After talking to some people it was decided that the bike would prob. run better (more torque) on the low end with a slip-on as compared to the full system. The system was an older muzzy one, and we all know muzzy isn't really the best setup. Full systems are really designed to help out on the top end, which I rarely get into that style of riding. I want a smoother throttle response with more low end torque. Plus there is a map for the Jardine slip-on while nothing for the full muzzy system.
tglass is offline  
post #9 of 28 Old 08-21-2008, 1:11 AM
 
Join Date: 03-27-2006
Location: New Zealand
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Quote:
Originally Posted by 929rrob View Post
Above 8k it goes to 360 where 1 and 2 cross flow and 3 and 4 cross flow.

Digging up an old thread...

That sounds like a good thing! when 1 is on its exhaust stroke 2 is on its intake stroke, so it's timing the exhaust pulses to "miss" eachother when they combine in the rest of the exhaust system..?
Nana is offline  
post #10 of 28 Old 09-08-2008, 1:42 AM
 
Join Date: 09-07-2008
Location: canada
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

i have a 954 and my htev servo stripped a bunch of gears in it so i put a new one on and the next day it did the same thing can i just take the servo off and position the valve to by pass it if so where do i position the valve
ianpt is offline  
post #11 of 28 Old 09-08-2008, 3:22 AM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: HTEV valve question

That's because you didn't fix whatever was jamming it first.
Yes you can.
Just set it to all three positions and see which suits you better.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #12 of 28 Old 09-09-2008, 12:12 AM
 
Join Date: 09-07-2008
Location: canada
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

after i took the servo off how do i make that error light go out and the little FI symbol is on too
ianpt is offline  
post #13 of 28 Old 09-09-2008, 1:13 AM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: HTEV valve question

As far as I'm aware there is no known way of removing the error code without rectifying the problem causing it.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #14 of 28 Old 09-09-2008, 8:16 PM
 
Join Date: 05-30-2008
Location: ocean, nj
Age: 41
Posts: 896
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 14
     
Send a message via MSN to shakey1378
Re: HTEV valve question

Quote:
Originally Posted by tglass View Post
I went back to the stock exhaust with a Jardine slip-on because of the bottom end lag in the throttle 0-3000 RPM. I put a PCIII on but it still didn't eliminate the low end bog. After talking to some people it was decided that the bike would prob. run better (more torque) on the low end with a slip-on as compared to the full system. The system was an older muzzy one, and we all know muzzy isn't really the best setup. Full systems are really designed to help out on the top end, which I rarely get into that style of riding. I want a smoother throttle response with more low end torque. Plus there is a map for the Jardine slip-on while nothing for the full muzzy system.

get a better tuner, while muzzy may not be the best setup for a honda they make good power. my kwak zx7r laid down 126whp with a muzzy full system and k + n filter. i even "heard" somewhere that muzzy and hindle were the same pipe just with a different name. could be a rumor tho as that was years ago bout 8 or more...
shakey1378 is offline  
post #15 of 28 Old 11-07-2008, 5:16 AM
 
Join Date: 03-19-2007
Location: Melbourne, Australia
Posts: 41
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: HTEV valve question

Quote:
after i took the servo off how do i make that error light go out and the little FI symbol is on too
Did you ever find a way to get rid of the error light without reinstalling the servo motor?

Im actually installing a Scorpion slip on on my 07 Blade which seems to necessitate removal of the HTEV, and I have been extensively researching this. There are many threads on HTEV but none that address that particular issue. My concern was that Id get the EFI error.
guvna is offline  
Reply

  Lower Navigation
Go Back   Honda Motorcycles - FireBlades.org > Honda Motorcycle Models > Honda FireBlade

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Motorcycles - FireBlades.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
A valid e-mail address is REQUIRED. You will not have access to any site features until you activate your account using the activation e-mail that is sent to this address.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
954 Valve Check Question Voodoo954 Honda FireBlade 7 03-22-2005 10:19 PM
full systems without HTEV valve ndj Honda FireBlade 60 01-08-2005 9:24 PM
954 valve check question kc954 Honda FireBlade 14 12-16-2004 10:19 PM
Starter Valve Sync Question Chrome Dome General Discussion 19 06-30-2004 12:13 PM
Hass eliminator vs open Htev valve FireBladder Honda FireBlade 9 06-14-2004 12:10 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome