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

Smr510 Bottom End Question

Discussion in '4 Stroke' started by mizery, Jan 24, 2022.

  1. mizery Husqvarna
    C Class

    Husqvarna Motorcycle:
    SMR510
    Other Motorcycles:
    None
    Hey guys!
    So I’m looking into rebuilding the bottom end on my old Smr510 motor. I’m very familiar with tearing apart the top end of these things and I’m no noob when it comes to working with my hands. I have a good amount of engine theory knowledge and not really intimidated by the overhaul. My only concern is leveling the crank. Now I’ve seen a few videos of people doing it themselves and it looks like it’s done pretty easy with the correct tools of measurement (which I don’t have). So I’m just curious if any of you have any tips/tricks for me or if this is something you guys outsource to a shop? How much would a shop typically charge for something like that?
    Anyways I appreciate any advice you all might have! Thanks dudes!
    CCED6E53-4461-49AD-A94E-223C9E598CA7.jpeg
    mizery, Jan 24, 2022
    #1

  2. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    Round crank halves, such as found in two stroke engines are difficult enough. Four stroke halves must be much worse. If you don't have access to crank truing tools, there's no point in trying. You want zero runout on the ends of the crank. If you have even a half thou, you will be sorry. You can't believe how much even a half thousandths will make your motor shake.
    Dirtdame, Jan 25, 2022
    #2