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 The previous version was outdated and no longer supported.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

compression release stay or go...

restore the compression release?

  • toss it.

    Votes: 3 60.0%
  • fix it.

    Votes: 2 40.0%

  • Total voters
    5

Matt Cummings

Husqvarna
B Class
Hey guys my 72 250 has a compression release in the head instead of a second plug. I have been looking online and haven't even seen one much less the lever to use it.
I was told it was for compression breaking by the previous owner.
Should I just toss it?
If I do toss it I was told the hot ticket "way back when" was to use a Honda duel coil and run the second plug on a switch. Foul a plug and you don't have to pull over to change the coil to the other plug, or get zapped doing it on the fly.

Thanks for any insight guys!
 
I used to use mine for scaring dogs that chased me on my RT 360 Yam back in the 70's but didn't need it when I got a 250.
 
Check other posts on here, put a chain saw release in and start it with your tennis shoes.
I didn't realize those existed until after I had already had a second hole machined into the head of my 500XC. Unfortunately the only place it could go was directly beneath the expansion chamber and I had to do some creative "dimpling" of the chamber to make room for the height of the compression release. I like the concept of the chainsaw releases since they're automatic and reset themselves once the engine fires up. But without one in hand, I don't know if they would be too tall or not. Mine I operate via a cable and lever up on the bars and it does indeed make it easier to kick over....whether or not she starts is another issue anyway!
 
There are a couple of threads on this issue. I got one used off eBay, don't know the brand. I think most are ten mm thread so if you have a head with two holes you need a bushing. If you only have one hole send your head to racers machine, his info is in one of those posts. If you can't find it I will look it up for you.
 
My bro' did the machining work for me, being that he's in the trade. Standard plug hole size.

The only problem with it's location is clearance to the pipe. On an automatic comp. release, not sure I would be able to get my fingers back in there to activate the unit...especially if re-starting from hot. Might toast some skin in the process.
 
I have an 87 WR250 and an 88 430XC (liquid cooled) the 250 is easy to kick compared to the 430 so if you dont need it junk it . Saying that would love a de compressor on the 430.
 
I have an 87 WR250 and an 88 430XC (liquid cooled) the 250 is easy to kick compared to the 430 so if you dont need it junk it . Saying that would love a de compressor on the 430.

When I Toss It I Can Send it To you. You Just Have To Eat The Shipping.
 
Interesting side note, compression releases first became popular in Flat Track racing when Yamaha introduced it's DT1 in 1968. At that time brakes were illegal.
 
As a kid, I had the opportunity to go riding and climbing some old coal hills and such in Washington state. This was pre-70's by a fair margin, riding Bultaco's and such. Everyone that was cool had compression releases. They're great for coming down extremely steep and loose hills. Riding 250's, they weren't really needed to facilitate starting but more for minor braking.
 
What are the best ones to use. I want to put one in my 82 1/2 500, so I can go easy on the kicker gears and case?

I did that on my 82 500

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I did that on my 82 500

IMG_6173_zpsa9305429.jpg


IMG_6169_zpsa7c25398.jpg
That's exactly what I did to mine, but used a cable actuated release. I think I'll try one like yours, an automatic release unit, but again I'm not certain I could get my fingers in there to pull up/set the release due to the pipe being directly overhead. May have to fabricate some sort of release lever within easier reach.
 
That's exactly what I did to mine, but used a cable actuated release. I think I'll try one like yours, an automatic release unit, but again I'm not certain I could get my fingers in there to pull up/set the release due to the pipe being directly overhead. May have to fabricate some sort of release lever within easier reach.

That style you never pull up. Just push down and kick, it pops back up even if the bike did not start.
 
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