• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st 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 The previous version was outdated and no longer supported.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!

Silly question's 101

Ruffus

Ruffus

Husqvarna
AA Class
Something I noticed today while oiling my chain.
I always do it with my bike on a lift, in neautral, spinning the rear wheel by hand.
Today I did it with the engine running in first gear. Every now and then, the chain buck's, like there's a mismatch. So I removed the 12 tooth CS sprocket I've been running for single track and reinstalled the 15 I normally run. Same bucking.
But if I pull in the clutch lever and let just the clutch drag spin the wheel, it runs smooth.:excuseme:

Don't feel anything while spinning it by hand, or while riding. Is this normal?
 
What is probably happening is that that the engine isn't running at a perfectly consistent RPM and the flywheel effect of the rear wheel overruns the engine speed at times. Try applying a slight amount of brake to the rear wheel when you're doing this so that it is always under load and see if it goes away.
 
Thanks for the idea, I tried it.
Applying some brake made it worse. I'll remeasure everything tomorrow to make sure my wheels lined up. Is there a reference to go to for measuring chain stretch?
I ended up with a lot of twigs stuck in behind the CS sprocket after yesterday trail ride. just wondering if maybe there was enough crap to stretch the chain if it got between chain & sprocket.
 
For what its worth.. my TE510 did the exact same thing when lubing the chain with the engine/tire freewheeling while on a stand. It would buck every so often just like you mentioned. If you turn up the idle speed I'm sure it will stop.
 
every thumper I've had does this.
Don't know why, but might just be the ignition part of the 4-stroke cycle.
SUCK-SQUEEZE-BANG-BLOW
 
Thanks guys. If it's normal, I'll just recheck my rear wheel alignment & not worry about it. :thumbsup: :cheers:
 
They all do it. I think it has to do with the fact that the chain really isnt in accel or de accel mode, just kinda in float mode with no drag on it.
 
I bet you will find one link a bit tighter than the others. Have a look when bike is on a lift and you rotate the wheel. If you notice one link looking a bit proud then thats the one. I also think running around a small front cog exascerbates the issue.
 
ghte said:
I bet you will find one link a bit tighter than the others. Have a look when bike is on a lift and you rotate the wheel. If you notice one link looking a bit proud then thats the one. I also think running around a small front cog exascerbates the issue.
Click to expand...

That's one of the things I was looking for, slowly turning the wheel by hand looking for a bad link, all links appear okay. I had a feeling it might be normal. But thought I'd ask just in case.

Today I'll put the 12 tooth back on. Double check wheel alignment, and be perceptive to any possible chain binding.
 
Is this on your 510?
It could be from the master link either going thru the chain guide or across the swingarm protector. At any rate it isn't even 1% of what that chain goes thru when out on the trails.
The owners manual has a section on chain adjustment and measuring chain stretch.
 
Slowpoke said:
Is this on your 510?
It could be from the master link either going thru the chain guide or across the swingarm protector. At any rate it isn't even 1% of what that chain goes thru when out on the trails.
The owners manual has a section on chain adjustment and measuring chain stretch.
Click to expand...

Yes, on my 510. Thanks for the info checking the manual for chain measurement. Will check it out today. :thumbsup:
 
All motorcycles do this. Just watch other rider's chains sometime on pavement or very smooth dirt when the bike is just cruising along. The pull of the motor will never be so consistent that there won't be a lapse sometime. That coupled with the natural somewhat uneven stretch of the drive chain will contribute to this.
 
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