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Thread: Tri Z 38mm Carb Jetting?

  1. #1
    Join Date
    Mar 2010
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    Wisconsin
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    Tri Z 38mm Carb Jetting?

    I've been building up my tri z engine with the yahama wrench report mods and I was planing on getting some v force 3 reeds and a 38mm PWK carb but running little short on money and I remembered I had a snowmobile carb laying around found it it was also a 38mm but round slide but it will do took it apart real clean inside was wondering what jets it had it's got a 45 piolt and a 340 main I'm guessing go one up on the pilot and one or or tow on the main?

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    83 Honda 250r
    85 Honda 70
    83 Honda 185s
    85 Yamaha Tri-Z (restoring)
    83 Honda 70
    79 Honda 70
    74 Honda Z50
    78 Harley Davidson Golf Cart w/Big Red Engine!!!

  2. #2
    Join Date
    Apr 2011
    Location
    Mexico
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    9,020
    I don't think you are going to get an answer that easily. I'd bolt it on and very carefully start to jet it beginning with the air screw out 1.5 turns and the needle clip in the middle slot. Get the pilot right then go to the main. No easy answers for a change like this.

  3. #3
    Join Date
    Mar 2010
    Location
    Wisconsin
    --
    118
    Yeah I'll try doing that
    83 Honda 250r
    85 Honda 70
    83 Honda 185s
    85 Yamaha Tri-Z (restoring)
    83 Honda 70
    79 Honda 70
    74 Honda Z50
    78 Harley Davidson Golf Cart w/Big Red Engine!!!

  4. #4
    volfan537240 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Jan 2010
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    Eufaula, AL
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    292
    thats a mikuni, not a pwk
    85 tri-z (in pieces)
    421 cub banshee

  5. #5
    Join Date
    Apr 2011
    Location
    Mexico
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    Quote Originally Posted by volfan537240 View Post
    thats a mikuni, not a pwk
    He said he was planning on getting one, not that it was. I thought the same thing as you the first time I read it and then saw the carb

  6. #6
    volfan537240 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Jan 2010
    Location
    Eufaula, AL
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    292
    ahh ok haha. reading comprehension is not my strongest subject haha.
    85 tri-z (in pieces)
    421 cub banshee

  7. #7
    Join Date
    Apr 2011
    Location
    Mexico
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    9,020
    Quote Originally Posted by volfan537240 View Post
    ahh ok haha. reading comprehension is not my strongest subject haha.
    Yea me too, I don't eat in restaurants that don't have pictures in the menus

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