top end rebuild

  1. Toro

    Cylinder head studs

    Does anyone know how tight the 8 long head studs should be on the lower end side? Im unsure if they should just be finger tight, snugged down or torqued to a specific weight. Thanks.
  2. C

    Part identifications

    I’m just about done with a top end rebuild and found some pins that I forgot to document/label. These could be from a different project on my bike but I just can’t remember from where. I know on pin is from doing a PMA Banshee mod but not sure where the other two are. I did disassemble a broken...
  3. MadeThatMyself

    Reusing the rear cam chain tensioner and cam chain (1981 XS650)

    Hey guys! I'm new to the forum and rebuilding a 1981 XS650 Heritage Special. I've been a forum reader for a few months now and finally decided to become an active member. My engine has 29k miles, ran when I bought it, but has super low compression, so I decided to tear the whole top end down...
  4. NorazDad

    81H top end rebuild

    A lovely Sunday ride ended in disaster when I blew my engine. I took the engine out and proceeded to dismantle the top end. When I got to the core, I found I had holed a piston and snapped the head off an exhaust valve and cracked the cylinder sleeve. I found the pieces in the crank case. So I...
  5. Jaydela180

    rebuild question

    Top end and right cover off. Bottom end stuffed with rags to prevent anything unwanted from falling in. Is there any time concerns for having everything open? Will residual oil keep everything coated and protected for an extended amount of time? Been about two weeks, will be about two more...
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