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 The previous version was outdated and no longer supported.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

irratic running

Northern Husky

Northern Husky

Husqvarna
AA Class
Well, im stumped.

My 1985 XC500cc starts fine, runs fine for about 3km (2miles), then just as its warm if i lay into it it starts to splutter, this gets dire real quick, to the point of almost dying, you have to jiggle the throttle from closed to 1/4, to get it home.
l don't think its fuel related, the carb is fairly new.................and ive clean it 5 times, also it backfires and smells of fuel, damp plug, damp tailpipe. lf i leave it a bit, it will do the same thing, start fine, go to shite in 3 km.....................................a day and a half later im done:banghead::banghead::banghead::banghead:!!

Been through the wiring, cleaned terminals checked for kinks. all good.

ls there anyway to check the coil/stator with a multi meter??

Cheers

have i missed anything?
 
I think in the parts and services there is a link to Vance Smiths Motoplat repair and troubleshooting. Sounds to me like ignition with the backfiring. Coils get hot from use and that may be whats happening. Coils can be difficult to test because of a static test ca be alot different than a running test, I keep a known good spare for that reason! I have used a heat gun and checked the coils before on one that would quit after it warmed up/rode a bit. Good spark untill I heated the coil to 100deg.F and then spark would dissappear. Hope this helps. Scott
 
Hello Scott.

Thanks for that,very helpfull, i had a feeling it was the coil, but no way to test. l used the 'Vance' test as directed the stator tested good and the resistance reading that should be 5.5k-5.6k ohms is 10.23k ohms on the coil, so i guess that's toast, time for another!

.................huskydoggg where for art thou huskydoggg :lol:
 
I'd agree with Chuck, pull the kill switch 1st, then change the
coil under the tank.

Husky John
 
......the plot thickens.

Thanks for the tips guys.
Well today i pulled out the coil, before i tossed it i removed the plug cap for a spare and thought i would test the coil again while i was at it, surprise surprise the coil tested good, so i guess it must of had a cap with a resistor???

So, i put a different cap on and it tested good, so i will put it back in and see what happens tomorrow!

lve blown out the kill switch with some air, maybe i can isolate it when i put it back together so i can rule it in or out.
 
iv started to put a dab of elect grease on the inside contact of my kill buttons, that seems to help them last, and keep the crud from building up.
iv had more then one spark plug cap go bad, be happy, most the ones i have had go out, were at the bottom of a big hill, or the middle of a creak someplace, far away from the truck.
 
...........................well, it was the plug cap in the end!

Never crossed my mind to check, good one no resistance, this bad one 5.5k ohms resistance.

For some reason this new cap also leaned the bike out slightly, (about 1-1.5mm on the porcelain)

So, thanks for the tips guys. My future SOPs will be to check this first................before pulling the bike apart, several times!
 
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