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 The previous version was outdated and no longer supported.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

2007 TE 450 running problem

Dirtdame

Administrator
Staff member
So....last September, I was out riding a nice 100 mile loop, and about half way through it, my bike started to run rough...especially at low RPMs. Then it actually stalled while I was rolling along with the clutch in. I could get it to start again, but then it would stall. Finally, it wouldn't start anymore and my riding partner went to get a vehicle to load it into. When I tried to start it at home a couple of days later, it fired right up. I decided to check the wiring harness and all the connectors to make sure that there were no frayed wires or corroded connectors. Everything looked fine, so I took it out for a 50 mile test run, and it ran without any problems. So I decided to continue to ride it, and it performed flawlessly....until August 6th of this year. I took the bike up to the San Bernardino mountains for yet another fun loop, and about nine miles out, it began to run rough and stall. This time I was able to limp it back to the car, by keeping the RPMs up high. The next morning, it again fired right up and purred like a kitten. Anybody have any idea of what this might be? I'm pretty sure it's an electrical component of the ignition system. Not sure where to look, especially if it won't malfunction. But I realize that it's probably not a good idea to trust it out on the trail anymore until I find out the exact cause.:confused::(
 
well, if you think it's electrical, then maybe your trigger coil is going flaky. Or even your ignition coil. heat-related electrical problems are hard to test though.

have you thought about a possible intake leak? check your manifold for cracks.

my last WAG would be failing injector or sensor. [Oh shit- i can't remember if '07 was the last of the carbs or the first of the fuel injectioned.... carbs, I'm thinking? take your float bowl bolt out and look for water or crapola]

Good luck, Mimi- keeps us informed if you discover anything new.
 
well, if you think it's electrical, then maybe your trigger coil is going flaky. Or even your ignition coil. heat-related electrical problems are hard to test though.

have you thought about a possible intake leak? check your manifold for cracks.

my last WAG would be failing injector or sensor. [Oh shit- i can't remember if '07 was the last of the carbs or the first of the fuel injections.... carbs, I'm thinking? take your float bowl bolt out and look for water or crapola]

Good luck, Mimi- keeps us informed if you discover anything new.
Carb model. Running crappy for a few minutes and then running good for almost a year doesn't sound like a carb problem. A crapped up carb or an air leak just usually gets worse and worse.
 
Carb model. Running crappy for a few minutes and then running good for almost a year doesn't sound like a carb problem. A crapped up carb or an air leak just usually gets worse and worse.

true- unless you got something (sediment or water) at the bottom of the bowl. OTOH, it's probably not the carb- but it's a 3 minute inspection (& the intake is a 30 sec inspection) so take a quick look.

btw, carb and intake problems can be intermittent. but i'd be leaning towards electrical too.
 
true- unless you got something (sediment or water) at the bottom of the bowl. OTOH, it's probably not the carb- but it's a 3 minute inspection (& the intake is a 30 sec inspection) so take a quick look.

btw, carb and intake problems can be intermittent. but i'd be leaning towards electrical too.
Checked that first thing, last year when the bike first died.
 
My 07 TE250 did a similar thing last year. I know you checked the wiring but mine ended up being the wire into the coil. It was partially connected but was hard to spot.
 
It does sound like a electrical gremlin. I would check the wiring harness everywhere for any rubbing again.
 
Sure sounds like fuel starvation to me. It shows to be a long time between rides and that can cause fuel to leave deposits in the carb and jets. I suggest a carb tear down and complete cleaning. I would also suggest removing the pet cock and cleaning the filter screen in it.

Paw Paw
 
Sure sounds like fuel starvation to me. It shows to be a long time between rides and that can cause fuel to leave deposits in the carb and jets. I suggest a carb tear down and complete cleaning. I would also suggest removing the pet cock and cleaning the filter screen in it.

Paw Paw
There were no long times between rides. Also, I drain the float bowl after each and every ride. I rode the bike on numerous occasions and put hundreds of miles on it between the first incident last year, and the second incident a few weeks ago.
 
My 07 TE250 did a similar thing last year. I know you checked the wiring but mine ended up being the wire into the coil. It was partially connected but was hard to spot.
I'll be sure to give that spot some extra scrutiny.
 
sounds like the same problem i had with my 07 450 that turned out to be the coil breaking down. fitted a new coil no more problems touch wood.
 
Any update DD.
Not yet. I have been working all week, and have other projects that I am in the middle of. I'm thinking that the coil or coil wire could be the culprit. At least I hope that something that inexpensive and simple will be it.
 
I am sure it is not a major issue as the bike would not run at all. The intermittent aspect points to electrics as you well know so its really coil, lines or poor contact somewhere. I think you can rule out a spark plug breaking down under load or stator. I would perhaps consider the regulator. I know on the 630's that if not grounded well they play up.
Good luck DD let us know your findings-need a happy ending.
 
Well, I took the bike out today, and of course it fired right up and ran like a champion all day long up in the mountains. I ordered a new coil for it, anyway.
 
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