Announcement

Collapse

General Forum Rules

This forum is open to all brands and aftermarket products.


No flaming or insulting other members, everyone is entitled to their own opinion.


Treat others how you want to be treated. If you do not have anything nice or productive to say, then don't say anything at all. Remember, you are interacting with real people and if you wouldn't say it to their face, then you probably shouldn't type it. Don't be a keyboard warrior!


No profanity. Dropping f-bombs doesn't make you cool.


Absolutely no obscene or pornographic content is allowed

Please post in the appropriate sections

Do not email, PM, call, or carrier pigeon etc. ADA Racing or admin with complaints about bans or Billetboard drama. If you were banned, it was for a reason and we're too busy to deal with those kind of complaints. If you have an issue with a moderator, please PM said moderator or any of the other moderators and if they have time to address it they will. Remember, we offer this board as a service to the community and it is a privilege to be on here, not a right.

Any member violating the above rules will be banned

These rules may be updated at any time
See more
See less

How to! Regular Carb and manifold (g23LH) on Geo motor!! (For cheap)

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • How To: How to! Regular Carb and manifold (g23LH) on Geo motor!! (For cheap)

    Hey guys, decided I'd do a write up on here to help all you fellow Geo owners. My first ped back in 2002 happened to be a brand new blue, geo-sport, a ped I've held onto all these years; needless to say, geo's hold a very special place in my heart. So onto the mod.

    Here are the parts you'll need:

    G23lh hp carb
    G23lh hp manifold
    2xm5 65mm bolts
    2xVacuum hose covers (from any auto parts store)
    Dremel or file (optional)

    That's it!

    Here's how it works. Start by popping the nuts out of the manifold and use the new longer bolts to go straight through the vstack (or filter), carb, and manifold into the cylinder. Take of the hoses to the Reed valves and block them with the vacuum hose covers. You can run it just like this, or continue onto the next step.

    So you'll notice that the main port lines up, but the cylinder hole is much smaller than the LH manifold port size. So you'll need to match port the cylinder. Either use a carb gasket or the manifold itself and trace the LH hole size onto the cylinder, enlarge the hole with a Dremel.

    image.jpg

    Here's a pic of the alignment

    image.jpg

    And a pic of it all together

    image.jpg

    Now throw that old carb in the trash and happy pedding!
    *******Pedding since '02********

  • #2
    Can you show a picture of the reed block offs please?

    I'm interested in this because the tgn block offs are super expensive and rare.

    Comment


    • #3
      Originally posted by displayking View Post
      Can you show a picture of the reed block offs please?

      I'm interested in this because the tgn block offs are super expensive and rare.
      Its the 2 white eye balls on the first picture..
      They just push over the nipple..
      ... J.
      There is nothing that cannot be fixed with a good cup of Tea.

      Comment


      • #4
        I really do enjoy threads related to these "Geo" engines, since they contain such unique challenges in extracting performance. I may have to look into one of these for some tests.
        2 Sports and a GSR40

        Comment


        • #5
          Bumping this thread for all those who still have problems with that finicky strato-charger system and prefer a more reliable hp style carb. @Chefgnar , hopefully you find this useful!
          *******Pedding since '02********

          Comment


          • #6
            Thread resurrection... dsport took me a while to find the thread! You have 34 pages of threads this was on page 20. Thanks for staying on the board! It’s nice to Know some passionate Goped guys still exist to help us novices out!

            Comment


            • #7
              Do you get reduced performance removing the reed valves?

              Comment


              • #8
                Originally posted by LouisvilleFan View Post
                Do you get reduced performance removing the reed valves?
                Nope, this mod increases both low and top end performance. The reeds on this engine are used for reduced emissions not performance. I highly advise you open up the entrance intake port with a dremel or file for maximum performance. Cylinder removal is not required- You can use sections of shop (paper) towel an push it into the intake PRIOR to porting. You absolutely do not want aluminum shavings into the motor.

                If you do open up your motor, it’s a good time to do a port job. Widen the intake port as much as you can before cutting through the cylinder walls. Do not raise or lower the port, just widen.

                I was able to achieve speeds for 32mph+ with this mod in addition to pipe and larger spindle. I can probably push this faster with more extensive port work and taller gearing but my rear tire started lifting off the wheel and going down at those speeds isn’t fun.
                *******Pedding since '02********

                Comment


                • #9
                  Would this be the Carb you are referring to?
                  http://www.davesmotors.com/ddm-hp-ca...-813-carb.html

                  If so, I'll order it now...

                  Comment


                  • #10
                    Originally posted by LouisvilleFan View Post
                    Would this be the Carb you are referring to?
                    http://www.davesmotors.com/ddm-hp-ca...-813-carb.html

                    If so, I'll order it now...
                    Thank you for including the link for the kit. Yes this is it. Don’t forget the longer m5 bolts. Once installed, this will now tune just like a normal sport/Rc/cy engine, but have added torque benefit of the geo motor.
                    *******Pedding since '02********

                    Comment


                    • #11
                      Parts arrived today, can't wait to get home and get to work! Thanks for the advise!

                      Comment


                      • #12
                        Question. Did you have to open up the mounting holes on the manifold? Look to be a half a hole off.

                        Comment


                        • #13
                          This was some time ago, I’m not sure. If I did, it was pretty minimal, this can also be done with a drill of you don’t have access to a dremel.
                          *******Pedding since '02********

                          Comment


                          • #14
                            I think now I know why the longer bolts. Everything bolts thru the manifold all together!

                            Comment


                            • #15
                              Yup! Same way the g62 motors bolt up.
                              *******Pedding since '02********

                              Comment

                              Working...
                              X