1. 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

250-500cc TMX38 vs. TMXX38 on WR250

Discussion in '2 Stroke' started by Bench Racer 117, May 25, 2011.

  1. Bench Racer 117 Husqvarna
    A Class

    Location:
    Oregon
    Husqvarna Motorcycle:
    2007 WR250
    Has anyone switched to TMXX38 Mikuni carb? My friend has one sitting off his WR125 and was wondering if I wanted to try it out.

    First, what's the difference?
    Second, what gains/losses would I get out of the switch?
    Third, what jet sizes should be used? The current settings I have now?
    Bench Racer 117, May 25, 2011
    #1

  2. NWRider Husqvarna
    AA Class

    It would be too short. Maybe it would work with a reed spacer
    NWRider, May 25, 2011
    #2

  3. pvduke Husqvarna
    Pro Class

    Location:
    ... on the gas...
    Husqvarna Motorcycle:
    tripple-hondo hoosk...
    Other Motorcycles:
    dozens of them, kicked to the curb
    IF...it fit. youd gain bottom and loose top and 125 jetting would prolly be way too fat in most cases. generally speaking smaller carbs gernate more velocity @ a given openeing due to a smaller venturi. it's trying to suck the same air through a smaller hole. this can benefit some engines low speed opperation to a degree etc etc....
    pvduke, May 27, 2011
    #3

  4. Bench Racer 117 Husqvarna
    A Class

    Location:
    Oregon
    Husqvarna Motorcycle:
    2007 WR250
    Thanks for the help. I didn't know it was shorter. Case closed.
    Bench Racer 117, May 27, 2011
    #4