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ASV (air suction valve) Removal?

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    ASV (air suction valve) Removal?

    First off I'd like to introduce myself to the hawk community. I've been wanting one for a while now and finally got one a month ago. I've been nothing but a two-stroke guy before this(all honda!!).

    OK. I got as far as removing all the smog related equipment except for that ugly pump on the side of the motor. What do I do with the two metal tubes leading to each head? Do I cap them off or let them breath?

    #2
    Welcome!

    I am no expert on this, so hopefully someone with more knowledge will give you more specific info but... I got a 91 CA head from ebay that had ASV on it and the ASV pipe was welded shut about an inch down. I am thinking you will want to cap it somehow otherwise you will have an exhaust leak out the ASV pipe. I can send you a pic if that helps.

    Comment


      #3
      your gonna need some of these made:-

      and here is some instructions:-
      http://hawkworks.net/CA-smog-removal.html
      Last edited by JR; 12-01-2008, 06:41 PM.
      "Life may begin at 40, but it doesn't get real interesting until about 150."

      • '88 in Candy Flair Blue + '90 in Italian Red
      • Ohlins Rear Shock
      • F2 front wheel
      • VFR750 rear wheel
      • Hiperform seat&headers
      • MSMotorsport Seat Cowl
      • Steve Lenac Tokico six pot caliper

      Comment


        #4
        If the motor is still assembled just cap them off. If you have the heads off the motor then by all means give it to your local welder and have him close em up. I have a set of California heads that came from somewhere, (yeah they made it all the way to the east coast) when I get down to my welder I will have him close them up and after a little weld clean up they will be 49 state heads. By the way if anyone needs heads (or anyuthing else for that matter) let me know.
        Faster than your mother... She's what the pros use.

        Comment


          #5
          Awesome information JR.
          Faster than your mother... She's what the pros use.

          Comment


            #6
            thanks guys, I'll just cap them off for now. I'll post pics of the bike when I'm all done.

            Comment


              #7
              Another Cali Bike Needs Cleaning

              Originally Posted by JR
              your gonna need some of these made:-
              http://www.hawkgt.com/photoalbum/alb...lock%20001.jpg

              and here is some instructions:-
              http://hawkworks.net/CA-smog-removal.html
              Sent you a PM JR.

              Hopefully I can get some of those beautiful smog port block off caps !


              And, this:
              "Cap all of the smog control related fittings on the side of the
              carburator that connects to the engine, using the plastic caps
              provided. Leave all breathers on the air intake side open, i.e.,
              vented to atmosphere."
              .... is about as clear as Oatmeal.

              I think I understand what they mean, but...

              ... it'd really help if someone could show me a picture of where the
              "smog control related fittings on the side of the carburator that
              connects to the engine" are located
              And also, where the "breathers on the air intake side" are ...

              Thanks All !
              Faster !!!

              Basic 50,000 mile 1988 NT650 - bought new in 89 by my stepfather
              ... 73whp - JD_700cc, stage-2 heads, 153 cams, Fox Shock +1400, .90 springs and Kiyo's magic fork oil mix , Lenac six-piston caliper & EBC rotor, SS Front lines, Eastern Beaver H4, Walker Flyscreen, 2001 Duc wheels - 120/70 & 170/60

              Past Rides...1989 Honda NX250, 1991 Bandit 400, 1995 Speed Triple, 2001 Speed Triple
              And Currently ... 2006 Triumph 675, 2005 Yammi FJR1300 ... and one bada$$ Little Hawk

              Comment


                #8
                Re: ASV (air suction valve) Removal?

                Originally Posted by thebaywayceo
                ... I've been nothing but a two-stroke guy before this...
                Me too !! Completely opposite power band, crazy compression braking, and say goodbye to bump starting it like a push-toy.

                Glad to have you aboard.

                If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us

                The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450

                Comment


                  #9
                  Maybe this will help: http://www.hawkgtforum.com/viewtopic.php?t=3316

                  Comment


                    #10
                    THANK YOU

                    Originally Posted by yclept1132
                    Thank You, , Thank You, , Thank You,
                    Faster !!!

                    Basic 50,000 mile 1988 NT650 - bought new in 89 by my stepfather
                    ... 73whp - JD_700cc, stage-2 heads, 153 cams, Fox Shock +1400, .90 springs and Kiyo's magic fork oil mix , Lenac six-piston caliper & EBC rotor, SS Front lines, Eastern Beaver H4, Walker Flyscreen, 2001 Duc wheels - 120/70 & 170/60

                    Past Rides...1989 Honda NX250, 1991 Bandit 400, 1995 Speed Triple, 2001 Speed Triple
                    And Currently ... 2006 Triumph 675, 2005 Yammi FJR1300 ... and one bada$$ Little Hawk

                    Comment


                      #11
                      Re: THANK YOU

                      Originally Posted by Faster675
                      Originally Posted by yclept1132
                      Thank You, , Thank You, , Thank You,
                      Um... want to put up a visual tutorial of how you do this?
                      You know your a hawkaddict when you check ebay and craigslist every hour for parts to upgrade

                      Comment


                        #12
                        Dont forget:-
                        c) Replace the brass hose barbs in the intake horns with 5mm
                        bolts, reusing the aluminum crush washers removed from the
                        hose barbs.

                        These are located on the inlet manifolds on the underneath between the cylinders. Dont throw them away as if you ever need to balance the carbs with a vacuum tester just put them back in.
                        "Life may begin at 40, but it doesn't get real interesting until about 150."

                        • '88 in Candy Flair Blue + '90 in Italian Red
                        • Ohlins Rear Shock
                        • F2 front wheel
                        • VFR750 rear wheel
                        • Hiperform seat&headers
                        • MSMotorsport Seat Cowl
                        • Steve Lenac Tokico six pot caliper

                        Comment


                          #13
                          Drin-

                          Sorry, I haven't actually done the process myself. My first Hawk was a 49 state model, and the one that I have now came with the removal already done (poorly, just had to vent the float bowls and cap one other thing).

                          Comment


                            #14
                            Oh it's all good... no worries I was more asking for other people b/c I won't be home for another 4 months anyways
                            You know your a hawkaddict when you check ebay and craigslist every hour for parts to upgrade

                            Comment


                              #15
                              What are the Advantages / Disadvantages of remove California emmision equipment?

                              Should I quit that shit? (all the hawk pics I see anyone have this vacuum thing on the left side).

                              Comment

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