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 The previous version was outdated and no longer supported.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

Death By Starting.

M

mike hall

Husqvarna
AA Class
Hello all,
Been a bit of a lurker on here for a year since buying my complete nugget of a 610 SM.
Anyway having worked my way through a ton of problems, thanks to the husky cafe community, I am now left with only one (known) issue. Bike starts great off the kick but is a complete pain to get going on the starter. Back-firing, coughing, or not starting at all. If I put a spare sparkplug on the HT lead and kick the engine over I get a decent spark as expected. If I do this on the starter I get random sparks far to frequently to match up with TDC. The ignition seems to become a random spark generator if the electric start is used. I have now run out of ideas on sorting this...
Thoughly checked wiring, new high current wires to starter.
Renewed earth connections, checked wiring with 2A continuity tester.
New starter soleniod, new brushes in starter.
New CDI, spark plug...
As the engine runs great once started i'm at a loss,
Anyone seen or had this issue?
Pic of bike attached in it's usual pose
Cheers,
Mike.
 

Attachments

  • 20190806_153357.jpg
    20190806_153357.jpg
    217.1 KB · Views: 22
Have you tried using external battery connected directly to starter? Or measured battery voltage while starting? If voltage stays high enough while cranking with its own battery,and starts with external battery connected DIRECTLY to starter i would suspect some kind of induction in wiring. Since earths are checked and good...And postive side is allso checked and free of loose connections that may cause voltage spikes that cdi might see as pickup coil pulses.
 
Hi Ceevu,
Yes I have used an external battery straight onto the starter. Wouldn't start...same
behaviour as above. I am going to look and see if I can do anything to supress any voltage spikes
that I assume the starter is generating. Thanks for the steer,
Mike.
 
Sorted...If anyone comes looking this is what I have concluded.
It is all to do with the speed the engine is turning over. It turns over a bit quicker on the kick than the starter.
Faster crank speed means bigger output from the pickup coil means CDI starts behaving itself. Put 18V into the
starter motor to test this theory and engine started easily. New pickup coil with 0.3mm gap and now starts well on both electric
and kick. A big plus one for Lithium batteries which also helped. My problem may have been made worse with
the high compression (11:1) piston I fitted when I had the barrel re plated.
Cheers,
Mike.
 
You must log in or register to reply here.
Back
Top