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  1. #1

    Pipe is in the way! howtune the carbs on a GPR?

    How do you guys tune the carbs? YOu remove the stinger everytime to make an adjustment. It makes for very difficuly tuning. Theres got to be an easier way.


  2. #2
    Hydrotherapy's Avatar
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    brill-bore a large hole in the rear mount bracket and adjust from there..

  3. #3
    Quote Originally Posted by Hydrotherapy View Post
    brill-bore a large hole in the rear mount bracket and adjust from there..
    Got pictures of this? Trying to get an idea of where to drill.

  4. #4
    All hail the Chief! fullboogie's Avatar
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    Assuming you have T handles, you can get to the lows by pulling the battery box and reaching underneath. You can get to high nos. 1 and 3 with a long screwdriver with a slot cut into the end to grab the T on the T handle. Drill a large (2 inch) hole in the exhaust bracket going from the no. 2 cylinder to the pipe. Look at it and you will see where to drill so you can get to no. 2.

    The screwdriver needs to be about 18" long, 1/4" shaft. Craftsman use to sell them, they're hard to find now.

  5. #5
    dont mean to hijack thread, but what about a 1999 1200xl as I dont think removing the battery box is an option, correct? I've heard of something called the pro-tec protube. It looks thinner than the regular stinger pipe. Would you be able to get a screw driver in the gaps to adjust the parts with this pipe?

  6. #6
    DRC 4 LIFE TheDome's Avatar
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    Quote Originally Posted by fullboogie View Post
    Assuming you have T handles, you can get to the lows by pulling the battery box and reaching underneath. You can get to high nos. 1 and 3 with a long screwdriver with a slot cut into the end to grab the T on the T handle. Drill a large (2 inch) hole in the exhaust bracket going from the no. 2 cylinder to the pipe. Look at it and you will see where to drill so you can get to no. 2.

    The screwdriver needs to be about 18" long, 1/4" shaft. Craftsman use to sell them, they're hard to find now.
    Harbor Freight has them booger man.. Everytime I see them I think about you whipping that thing out at Rayburn that weekend. They even have one that is about 3 foot long.

  7. #7
    Can you access the high speed needles by removing the air intake cover?


    Edit,,After looking at an overhead picture in another thread,,looks like any access to be had would have to come from the top side....

  8. #8
    Moderator OsideBill's Avatar
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    Have you removed the tamper caps and installed t-handles on your carbs? here is a pic of the hole in the bracket to access #3
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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