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

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  • #16
    This is great info. Never knew it could be done so easy. I'm ordering parts asap to try this on my s25.

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    • #17
      UPDATE:

      Hey sorry it's taken so long to give y'all an update. I got the new carb put together and it FIXED MY PROBLEM! Runs great now. I've been able to get it up to 21 MPH.

      FYI is took a lot of modifying to make the new carb mount to the engine. I used a drummel tool with a straight cutting bit to oval shape the mounting holes on the new carb, I also ground the transition from carb intake on the engine to make it smooth and maximize air flow.

      Thanks for all the help, runs great now!

      -E

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      • #18
        Originally posted by LouisvilleFan View Post
        UPDATE:

        Hey sorry it's taken so long to give y'all an update. I got the new carb put together and it FIXED MY PROBLEM! Runs great now. I've been able to get it up to 21 MPH.

        FYI is took a lot of modifying to make the new carb mount to the engine. I used a drummel tool with a straight cutting bit to oval shape the mounting holes on the new carb, I also ground the transition from carb intake on the engine to make it smooth and maximize air flow.

        Thanks for all the help, runs great now!

        -E
        Awesome! some castings may be different than others, mine didn’t require quite so much work, but I was using an old carb and manifold that had be been taken on/off many times. But regardless, I’m glad you like the results! These motors have the potential to run extremely well with a good tune. also, it’s defiantly worth upgrading the spindle to an .800 or .950 if you’re looking to gain some top speed.

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        • #19
          Originally posted by dsport View Post

          Awesome! some castings may be different than others, mine didn’t require quite so much work, but I was using an old carb and manifold that had be been taken on/off many times. But regardless, I’m glad you like the results! These motors have the potential to run extremely well with a good tune. also, it’s defiantly worth upgrading the spindle to an .800 or .950 if you’re looking to gain some top speed.
          Do I have to worry about over reving it going down hills? Once I found the right bit for my drummel tool it was quick work! Also, what gas oil mix do you use?

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          • #20
            Originally posted by LouisvilleFan View Post

            Do I have to worry about over reving it going down hills? Once I found the right bit for my drummel tool it was quick work! Also, what gas oil mix do you use?
            24:1 with decent oil. Anything from Maxima or Motul or Klotz techniplate.

            Revs should be fine, it uses the smaller wrist pin bearing which is good up to 17k rms. personally I’d up the spindle size unless you are over 190lbs

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            • #21
              Originally posted by dsport View Post

              24:1 with decent oil. Anything from Maxima or Motul or Klotz techniplate.

              Revs should be fine, it uses the smaller wrist pin bearing which is good up to 17k rms. personally I’d up the spindle size unless you are over 190lbs
              thanks for the info....I'm 6'-2" 250 so I'll leave that alone

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              • #22
                Ok so I am doing this to my s25 and the throttle cable won't work what do you recommend todo? also do I have to change the oil ratio?

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                • #23
                  So I just bought the DDM HP carb kit for the G23LH. (Wt-813 carb) and the 'torquer' velocity stack. Gonna do the swap I seen here on my Geo. got everything I needed. When to bolt it on and it doesn't line up the way it seems in the pictures here.. so I just tried the carb and G23LH manifold and it doesn't seem to wanna line up as well.. my question, would it be okay to drill up the holes on both the manifold and the carb to make both bolts to line up to the cylinder bolt holes?? I can only get one to go in and the other one is off a tad. Or am I doing something wrong. I'd really love to run a butterfly carb and velocity stack on it.

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                  • #24
                    Originally posted by C-Biggs92 View Post
                    So I just bought the DDM HP carb kit for the G23LH. (Wt-813 carb) and the 'torquer' velocity stack. Gonna do the swap I seen here on my Geo. got everything I needed. When to bolt it on and it doesn't line up the way it seems in the pictures here.. so I just tried the carb and G23LH manifold and it doesn't seem to wanna line up as well.. my question, would it be okay to drill up the holes on both the manifold and the carb to make both bolts to line up to the cylinder bolt holes?? I can only get one to go in and the other one is off a tad. Or am I doing something wrong. I'd really love to run a butterfly carb and velocity stack on it.
                    Hey did you ever figure out the problem.. I need help with that too

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