• 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

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 The previous version was outdated and no longer supported.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

125-200cc timing

B

Bart

Husqvarna
AA Class
I want to check the timing of my TM EN300.
How do I do this, I have a dial indicator to find tdc.
What do I have to measure, there are no marks on the case or stator, fww.
My dealer (who is technical), says I should measure center of the pickup coil to the center of the raised portion of the fww. Maybe I understood him wrong but I think it's strange.
 
Can you put a meter on the pickup coil output and see a switch point? I don't know if the unit on that bike is a binary switching type or some sort of fancy inductance motion electrical magic that will only work with a moving flywheel.
 
I'm sure that would be possible!
After some more thinking, I'm pretty certain it should be like: mark pickup and raise portion on ff (since no marks are apparent), set piston to TCD (zero the dial) and turn the marks so they line up, now look at the dial and you should read the ignition distance before TDC. Am I correct?
 
Just keep in mind that the dial is going to show vertical distance, some math is involved to translate that into degrees of crank rotation.

The one variable here is that I don't know if the ignition fires when the two things are lines up on centers, or if it fires on the leading edge or trailing edge or whatever.

I think you have the right idea though!
 
I think the best way is to mark the flywheel and case at TDC and then do the math (or use a degree wheel) and mark the case for degrees BTDC. Then use an inductive-type timing light with the engine running. This will get you pleanty close to "check" it. Do you have any specification to compare it against? How the spec is given would determine the easiest way to compare them.....
 
Yes I have the stock spec which is measured vertically x mm BTDC. I retarded it 1,5mm let see what it brings. (It's still advanced more then stock).
 
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