• 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 The previous version was outdated and no longer supported.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!

LOOKING FOR 88 WR 250 PISTON

woodsguy

woodsguy

Husqvarna
C Class
Hello All,

I have a 1988 WR 250 that needs a piston/ring/pin. After days of research and calling every Husky dealer and piston manufacturer I could find I am out of luck. Apparently this year 250 has a unique engine with a unique piston. Currently it has a single ring 66.5MM bore piston with 25MM from top of pin hole to crown of piston with a domed head. According to the parts manuals it is actually a 1987-88 Husky CR250 piston not a WR piston. I believe it could be the origanal piston for the bike. I actually need to find a 1st or 2nd over piston 66.75 or 67MM so I can have the worn sleeve bored. If anyone out there has one of these in decent shape on a shelf or in a box of parts then I would be interested in taking it off your hands.

If anyone has another solution to resolve this issue then I would appreciate the advice. I cannot be the first 87/88 WR owner to run into this problem.

Thank You
 
Try Huskydogg.com I ran in to the same thing on my 87 xc . He was the only one that wanted to help me out and he had the correct piston that I needed.
 
Thank You Scrambler,

Steve at HuskyDogg did have the piston I needed. this was all confusing because the 88 WR 250 actually seems to have the 88 CR 250 piston in it.
 
the correct part number is 16 16 387 01 stock bore 16 16 387 02 1st over and 16 16 387 03 is 2nd over, this is true for the 1987 WR and XC 250 as well, the design did not change
there is no 1988 CR250, the only CR released in 1988 was the CR430, no 500 no 250 and no 125
if someone is telling you the piston is the same, shop elsewhere
 
I believe the XC has the same bore as the CR 87,just no power valve. You might have a XC
 
The 88 WR 250 has the same piston as the 87 & 88 XC & CR 250 in fact it has the same cylinder liner but not the power valve.
 
RTM said:
The 88 WR 250 has the same piston as the 87 & 88 XC & CR 250 in fact it has the same cylinder liner but not the power valve.
Click to expand...

not sure where you got your information but it is a different part number
I had both and will say having them sit side by side they are definitely not the same
 
I removed the liner from a power valved CR250 and installed it into my WR 250 about 4 months ago. The CR jug was supplied in the UK by Charlie Preston (with new Piston) I have another WR cylinder I purchased from the states in November. They are identical in every way other than the CR having the power valve.
 
you are correct in your analysis, but
the function of the power valve required a different piston to take advantage of the flow characteristics and as such a new piston was designed specifically for the CR250, they really are different and have a specific part number
 
That I didn't know. I asked for a WR piston I guess. The piston supplied and that I fitted was a pretty stock looking affair, with a slightly rounded crown and single ring. Identical to the one I removed.

How do the CR differ?
 
Here's a few pics of the 2 pistons I have. One is for a 85 and the other is a 87 both CRs. The power valve piston does have a longer skirt.

piston.jpgpistons.jpgpiston 87.jpg
 
Pretty sure min had equal length skirts either side, however I don't see any reason the CR piston wouldn't work in a WR.
 
RTM said:
Pretty sure min had equal length skirts either side, however I don't see any reason the CR piston wouldn't work in a WR.
Click to expand...

I suppose if you wanted to machine the skirt off, but why not gust get the right one
 
The exhaust side skirts look to be the same length, so they should work. The intake side window is pretty much the same with slightly shorter skirt fingers on the sides. This is a non issue.

You can see slight variations in intake skirts from the piston manufacturers. WISECO, WOSSNER and VERTEX don't always have identical skirt shapes on a piston for the same bike.


Many hot rod shops even cut the intake sides of the piston to improve performance.

If the ring end gap pin is in the same location, the dome is the same and the exhaust skirt does not expose the bottom of the exhaust port at the top of the stroke it will be OK.
 
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