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 The previous version was outdated and no longer supported.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

Need help! 449 started to run crappy today.

Russ Henry

Russ Henry

Husqvarna
AA Class
I have a 2011 TXC 449. It has been a awesome bike and has ran flawless until today. The bike ran its normal crisp self until about the 10 mile mark. It then started flaming out and stalling at the lower speeds. I solved the issue by giving it a bit more throttle but the problem got worse as the day went on. It then started cutting out unless I was reving the pee out of it in any gear or speed. When it stalled. I could hit the button and it would start right up and idle fine but when I gave it throttle to go it would die unless I really reved it hard. I hope it is something simple.
Thanks for the help.
Russ
 
It's leaning out. What kind of fuel do you use, do you use race map 2, fuel conditioners, etc?
 
Russ Henry said:
The same 92 pump gas I always use. No additives
Click to expand...
As Tinkin stated in his reply, a additive like Startron is almost a must for a FI bike now a days. My dealer advised NOT to run my FI Huskies without a fuel additive. They didnt try to sell me any either but told me I could by it almost anywhere. I would start with cleaning out all the fuel and putting in fresh with an additive of some sorts (startron or Lucas) Could also be an electrical issue or clogged injector. Thats more labor intensive so thats why I suggest it second. Did you use dielectric grease on all electrical connectors? There is quite a bit of wiring on bikes anymore so it will take time to go over everything. There are instances of wires pulling out of the connectors slightly which makes it pretty impossible to tell by just looking. Just trying to give you some place to start.
 
Startron is Lucas btw (chemically), except it has an enzyme that breaks up deposits. It could be electrical like a fuel injector relay slowly going out, but under the circumstances, it sounds like a clogged injector.
 
Tinken said:
Startron is Lucas btw (chemically), except it has an enzyme that breaks up deposits. It could be electrical like a fuel injector relay slowly going out, but under the circumstances, it sounds like a clogged injector.
Click to expand...
There you go again.....gettin all technical! Im like a neanderthal.......open bottle.....pour in......ride bike!
 
It could be a fuel pump/fp relay, if you haven't replaced one and you have lots of hours, you could be due for a new one. I picked up a fuel filter to run between the fuel cells on my bike, but I haven't had time to install it yet.

starting_relay.jpg
 
Tinken said:
Sounds like a clogged injector, I always use either Startron or Stabil in every tank of gas plus octane boost, but for sure the stabilizer. Try a TPS reset first. http://www.cafehusky.com/threads/updated-tps-efi-reset-449-511.28801

Edit: Air Bypass EFI Adjustment 449/511

This is the big brass screw high up on the side of the EFI body

2 ¼ turns out (+/- 1/8th of a turn) should put the minimum air bypass back in range.
Click to expand...
I am doing this now. How do I unclog the injectors ?
 
I just forgot. The only diff between yesterday and today is that I turned the brass scew on the throttle body out another 3/4th to increase the idle .
 
Tinken said:
It could be a fuel pump/fp relay, if you haven't replaced one and you have lots of hours, you could be due for a new one. I picked up a fuel filter to run between the fuel cells on my bike, but I haven't had time to install it yet.

starting_relay.jpg
Click to expand...
What kind of filter did you get? A standard inline? I was just thinking today of what kind on fuel filter I can add to the fuel system.
 
Same one Speedbrain uses on their Dakar bikes..
VW-Fuel-Filter,-All-Carburated.jpg

This way you can see when you need to replace it. Having two fuel cells is a pain in the ass, except for adding a fuel filter like this, it becomes the holy grail. Ask any FI motorcycle owner. :thumbsup:
 
Tinken said:
Sounds like a clogged injector, I always use either Startron or Stabil in every tank of gas plus octane boost, but for sure the stabilizer. Try a TPS reset first. http://www.cafehusky.com/threads/updated-tps-efi-reset-449-511.28801

Edit: Air Bypass EFI Adjustment 449/511

This is the big brass screw high up on the side of the EFI body

2 ¼ turns out (+/- 1/8th of a turn) should put the minimum air bypass back in range.
Click to expand...
I just did this. It started,died and won't start
 
When you add chemtool, you may have to back it out to get it to run again until the injector is clean.
 
You must log in or register to reply here.
Back
Top