1. 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

510 motor question

Discussion in '4 Stroke' started by Luigic81, Apr 11, 2010.

  1. Luigic81 Husqvarna
    A Class

    Location:
    Hillsboro, OR
    Whats different internally between the 510 and 450?
    Is it just the crank and con rod?
    Is the diffferent con rod what leads to rod failure in some 510's?
    In theory could one replace the rod and crank in a 510, with a 450 rod and crank and basically have a SMR 450?
    Thansk
    Luigic81, Apr 11, 2010
    #1

  2. Ruffus Husqvarna
    AA Class

    Location:
    Fort Erie, Ont. Canada
    I'm guessing the cylinder is taller on the 510 to accommodate the longer crank throw.
    Ruffus, Apr 11, 2010
    #2

  3. Luigic81 Husqvarna
    A Class

    Location:
    Hillsboro, OR
    that makes sense. So at the minumum, I would need a crank, rod and cylinder.

    On a related note, anyone run a different cam on their 510 with good results in changing the power delivery?
    Luigic81, Apr 11, 2010
    #3

  4. HuskyDude Moderator

    Location:
    BC, Canada
    Husqvarna Motorcycle:
    13/TR650
    Other Motorcycles:
    10/EC300, 76/TY175
    The manual lists the stroke as 450/2.39" and the 510/2.67"

    So yes that should do it...well maybe a gasket kit too.:D
    HuskyDude, Apr 11, 2010
    #4

  5. Luigic81 Husqvarna
    A Class

    Location:
    Hillsboro, OR
    apparently from another forum they said that the valve springs and intake cam are different as well.....
    Maybe I'll look at a 530 kit instead
    Luigic81, Apr 11, 2010
    #5

  6. jlk_250 Husqvarna
    A Class

    Location:
    Minneapolis, MN
    No, I think they meant the RR has different valve springs and intake cam. The standard 450 and 510 have the same head assy including same cams, valves, valve springs, etc.
    jlk_250, Apr 12, 2010
    #6