1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

Type of cylinder hone preferred

Discussion in 'Vintage Restoration Projects' started by Bill Orth, Jan 8, 2014.

  1. Bill Orth Husqvarna
    A Class

    Location:
    Parker, Colorado
    Husqvarna Motorcycle:
    MI 400 Cross, MJ 450WR, MK 250WR
    Other Motorcycles:
    Rickman/Triumph, and 15 others
    For deglazing a cylinder, what is the preferred type of hone--a ball hone or the three-headed grinding stone variety? I imagine either would do a decent job of cleaning and cross-hatching the cylinder, but it seems the ball version would do a better job of smoothing all the port edges, whereas the stone variety would sharpen them. Opinions?
  2. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    A flex, or ball hone will do a fine job without accidentally taking out too much material. Stone hones are best for getting final clearance on a freshly bored cylinder.
  3. 84scrambler Husqvarna
    Pro Class

    Location:
    mid Florida
    Husqvarna Motorcycle:
    87 xc 250, 85 wrx 250, 79 wr 250
    As far as I know your suppose to chamfer the edges of the ports ? Lots of this stuff on you tube also, I guess the amount of material would tell you the answer.
  4. suprize Husqvarna
    Pro Class

    Location:
    Bendigo, Australia
    Husqvarna Motorcycle:
    WR 400, bike in a box Moto Villa 350
    Other Motorcycles:
    ktm 300
    I would spend some time taking the edges off the ports once honing completed
  5. dukkman Husqvarna
    AA Class

    Location:
    Warwick Queensland Australia
    Husqvarna Motorcycle:
    85/WR 400,86/WR 240,83/430 is mates
    Other Motorcycles:
    69@71/TS90-76/TS100-72/DKW-78/PE
    I have spent 1/2 my working life doing engine reconditioning and I would NEVER use a ball hone on a two stroke.
    The bore on anything should be round and the ports on a two stroke should have a small chamfer to stop the rings catching.
    A ball hone will give you a bloody big chamfer just like a worn out two stroke.
  6. jimspac Husqvarna
    Pro Class

    Location:
    Connecticut
    Husqvarna Motorcycle:
    82 250WR, 82 430WR, 84 250WR, 85 400
    Other Motorcycles:
    86 400WR, 82 Montesa Cota 349
    I was just thinking that myself. I have only used the ball hones I got from an old shop on my Suzuki 850 when I replaced the cylinders. I did not like the idea of the balls springing into and out of the ports