• Husqvarna Motorcycles Made In Sweden - About 1988 and older

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Measuring for rebore

Paid $100 au to get a postie bike overbored and as I walked out of the shop I lifted the bore to the sun and could see tool marks in the finished job. Went home and measured it hoping the guy had left it a bit small.
Dead on size. Damm.
The barrell and piston were rare 125cc ones that I will probably never find again so I had to wear the ballsup.
Later I honed it to take the marks out because it was blowing smoke , so now it won't last as long.
Should have done the job myself.
 
I must correct my original post - I was not given correct information. There are a few engines where the PISTON is measured part way up from the bottom - the taper thus making the bottom of the skirt extra snug. This was confirmed by a former Husky dealer mechanic from the '80s but he told me Huskies are measured at the bottom.

Once again sorry for the mis-information.
 
Rowan said:
Yes - of course I have already had the bore measured by the ONLY good 2 stroke machinist in town ( that's how I know it needs a re-bore ). Many engine shops can't do 2 strokes properly. I am just waiting for the piston kit to give to him so he can do the job.
My main concern is where to measure the clearance - at the very bottom of the piston skirt or up a little bit. I have been given conflicting advice.

Thanks
Click to expand...
Measuring your piston at several points, from the bottom of the skirt then towards the wrist pin, will reveal to you the largest diameter of this particular piston. Set your clearance from that diameter. Different pistons may have the largest diameter at different points from the bottom. I'm certain this is the measurement you desire.
 
Always measure up and down on the piston (Exh side to Int side) the correct measurement is the largest measurement.
Usually can be from 1/4" to 1 1/2" or higher up on the skirt of the piston depending on the size of the piston.
Remember pistons are not round, it's important to measure front to back , take several readings up and down on the piston, the largest dimension is the go to dimension.
Bore to this dimension and hone for your clearance.
Different pistons have different clearances a true forged piston will be different than a cast piston.
Example forged would want .004 and a cast .0025.
Later George
 
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