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 The previous version was outdated and no longer supported.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

2006 TE510 With Knock-Normal?

D

deeve

Husqvarna
Hello, I am going to be helping a friend with a 2006 TE510 that has a pretty good knock at idle. As the engine revs up the knock seems to go away. I am going to help him try and figure out of it is normal or not, and if not what it might be. I have done some searching, but so far I cant find anything one way or another. Any thoughts?

Thanks!
DAVE
 
deeve said:
Hello, I am going to be helping a friend with a 2006 TE510 that has a pretty good knock at idle. As the engine revs up the knock seems to go away. I am going to help him try and figure out of it is normal or not, and if not what it might be. I have done some searching, but so far I cant find anything one way or another. Any thoughts?

Thanks!
DAVE
Click to expand...

Without an audio sample it's hard to say, but noises that go away with revs make me think cam chain. I'd look at the tensioner first.
 
Might just be valve noise. They tend to go with revs. Checkmto see if they are in spec.
 
I was thinking more about this last night and it sounds too "deep" to be valve clatter and it seems to go away with the revs...or at least get quieter. Im thinking it is either normal or something not too great.
 
Also some people confuse the rear disk rattle with engine noise. It does make a racket. I'll have to check my own cam chain tightener. I get a slight rattle when under load at low revs.
 
Very likely rod knock. My 2005 presented with the same symptoms as yours. loud knock at idle, les so if reved up.

Big end rod bearing was toast. Full rebuild required.

Pull the sump plug on the bottom of engine. If the magnet looks like the top of bart simpson's head with spikey flakes every where it's bad news.

It's a 2006, how many miles? Mine went at about 8-9 k miles.

Good luck,

Bugs
 
Yup what he said ^^ I bought a used YZ400F with two season's use back in the
fall of '00 and when the guy fired it up and at idle it was making a huge knocking sound.
Everyone was new to four strokes then and myself being caught up in the
excitement made the down payment anyway as he said it had always done that :mad:
That motor didn't live too long, got progressively worst and had to rebuild it.
Needless to say I didn't ride much that summer.
 
I drained the oil and the plug had just a bit of swarf on it. Nothing with any big chunks. I also pulled the three screens and cleaned those. Again, nothing too bad. I few little flakes. After the oil change it did seem quieter, but that could have been due to the skid plate being off. My plan is to check the valve clearance. Not sure what else I could do without pulling the motor or just deciding that it is the normal way things sound.
 
My YZ400 was that at point it got so bad it made some type of high pitched
vibrating sound. There was no damage and it did not lock up but I had close to 1/64" up down
play on the rod. Listening to the vid made me think of when I first bought the YZ, same heavy deep knocking sound. Sorry for the bad new, but it will soon be due for a new crank bearing.

I had shavings in my oil filter on and off, was surprising the amount of wear the crank pin had.
 
Well, I checked the valves and they were in spec. I also cleaned up the carb quite a bit. The ethanol wreaks havoc on those poor carbs. I also found the carb boot cracked and leaking....prob causing a lean condition that adds to the overheating issue. I am going to assume the noises I am hearing are "normal" for an engine of this age. The PO did hammer a few of the threads on things and I found more then one at the cusp of stripping out. I guess it will be time to invest in a helicoil kit. :)
 
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