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 The previous version was outdated and no longer supported.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

Timing on 2009

B

bacon

Husqvarna
Anyone got a service manual for a 2008 or 2009 model SM610? I did a full top end but realized (too late) that the EFI bikes have a different flywheel than all the other years and there is no TDC mark to line up. I know how to line up the dots on the gears on the clutch side, but if I remember right, those dots line up at both TDC-C and TDC-E. Where do I set the flywheel to ensure I am at TDC-C so that my timing isnt 180deg out?

Pics of my flywheel attached.
 

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The flywheel will be in the same position at TDC compression and TDC exhaust, so IMO you shouldn't worry about it: the ignition will spark anyways in both TDCs.

The gear on the camshaft has a dot that, when the dots on the clutch side are aligned, should be aligned with the mating surface of the head, like in these pictures:


TDC C.jpg


TDC E.jpg


I assume that your head cover has been installed by now and you don't want to remove it and reapply the liquid gasket. Then you can remove the two smaller covers for the valve clearance setting and see wether the cams are pointing aupwards or downwards.
 
My valve cover is still off. I'm came to the same conclusion as you and also ready that a lot of units like these have "wasted spark" ignition where it sparks at both TDCs to simplify the ignition system. I'll assemble this weekend and report back
 
There is no cam sensor, so there's no way for the ignition to know where in the cycle the crank is, so it just sparks every timing set point (just before tdc).

Make sure you stick a chopstick in your plug hole and visually verify the vales moving as expected during each part of the cycle.
 
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