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

Bent Cam? Bearings??

Discussion in '4 Stroke' started by FReQRiDeR, Apr 4, 2018.

  1. FReQRiDeR Husqvarna
    AA Class

    Location:
    NorCal
    Husqvarna Motorcycle:
    510 SMR ITALIAN
    Other Motorcycles:
    Ducati 888 SPO
    Greetings!

    I have an ‘06 Smr510 that broke a cam yoke when the piston hit the valve and poped the cam out. I got a newish head and valves off another bike and the intake cam is binding now. I was thinking a cam bearing replacement would solve the issue but now am wondering if the cam is bent? Bearing seems smooth until I torque the caps down. Then cam binds when spun. Should I just look for a new cam or try bearing change? I guess I should ask a dial indicator this question! Lol
    FReQRiDeR, Apr 4, 2018
    #1

  2. Huskynoobee CH Sponsor ZipTy Racing

    Location:
    Castaic, CA
    Husqvarna Motorcycle:
    2011 TE449 2006 WR250
    Other Motorcycles:
    HDUltra Classic IT200 YZ250 SV650s
    Exactly! If you can check the runout that's a good start. You're using the new head right? Can you get the cam too? Also try perhaps installing the other (exhaust) cam with no valves to compare?
    Huskynoobee, Apr 4, 2018
    #2

  3. Up-tite Husqvarna
    Pro Class

    Location:
    Huntington Beach ,Ca.
    Check cam for run out, replace cam bearings (non Chinese).
    Were the bearing caps from the SAME head?
    If not remove the guide sleeves from cam caps on the cam that binds.
    Try it. Just might work.
    Later George
    Up-tite, Apr 5, 2018
    #3

  4. FReQRiDeR Husqvarna
    AA Class

    Location:
    NorCal
    Husqvarna Motorcycle:
    510 SMR ITALIAN
    Other Motorcycles:
    Ducati 888 SPO
    Yes, yokes are from new head, no mix and match. I think bearings are bad. Thanks.
    FReQRiDeR, Apr 5, 2018
    #4