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 The previous version was outdated and no longer supported.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

TE 511 flame out

T

triumph doug

Husqvarna
C Class
I just installed a FMF Power Core 4 exhaust and the bike will flame out as soon as I let off the throttle. Is there a cure for this, or is a JD tuner my best option? Thanks.
 
Hi, I turned up the idle screw 1/8 and the same problem remained. I then turned the idle screw a full turn and a half with no results. The bike will start and run fine and both fuel pet cocks are open. It is only when I slow down and let loose the throttle that it will make a pop, and then die suddenly. I read the link about the spark plug ground but my bike only has 40 miles on it. However I will change that soon. Any advice on what I am doing wrong?
 
I think it's just a little quirk with this bike that we have to live with. My 2011 511 has well over 2000 miles and I still get flame outs. Got the Powercore 4
and JD Tuner, maybe if I was an FI expert I could use the tuner to cure this but I've tried many different configurations and fiddled with idle screw and have
come to the conclusion that it's just a very minor quirk with the bike. I've adapted a preventative riding Style to avoid the dreaded flame out when you're
trying to make it up a rocky step and my bike seems to know the exact worst time it could flame out and does.
 
It wouldn't be too bad if it only does this occasionally but it happens every time i cut the throttle. But yours does this even with a JD tuner?
 
I haven't tried this myself, but has anybody contacted FMF to see if they had this problem during development? Or, do they make the pipe fit the bike and that is the end of their r & d?
 
Reduced back pressure from the exhaust allows more air to flow past the throttle body and more fuel must be added to compensate or a lean flame out will occur.

Motosportz said:
Dan, turning the brass screw on the EFI will up the idle and make the bike not pop anymore. that's all Bills did to mine and it runs perfect. Still going to work with the JD X2 to see if there is more performance / fuel milage and better running hidden in there but right now my bike is 100% and rips.
Click to expand...

bypass adjustment to cure low throttle stall: http://www.cafehusky.com/threads/new-muffler-for-te-449.19761/#post-173176

Do you have the map shunt installed? Are you in race map II configuration?
If the new map setting & tbi bypass adjustment doesn't cure your problem, I would suggest grounding your frame and tbi unit in reference to one of my links posted above.
http://www.cafehusky.com/threads/te-511-flame-out.28714/#post-257766

The JD tuner will not cure flame outs, flame outs are a lean tbi burst error caused by the keihin ecu mapping. The JD tuner is an inexpensive way to add fuel on top of the stock mapping which results in more power. The only way to cure flame-outs is to replace the keihin maps with a new ecu unit which allows map adjustment such as the powercommander 5 or Bazzaz, who both have units available.

http://www.bazzaz.net/index.php?pag...tegory_id=68&option=com_virtuemart&Itemid=181

http://www.bazzaz.net/index.php?pag...ategory_id=3&option=com_virtuemart&Itemid=181
 

Attachments

Interesting topic. Can one of those units be used in conjunction with the JD Tuner or would you have to remove it ? Also, which unit is better
between the PC V or Bazzaz ? I'm also going to do the ground wire thing you suggested. Thanks for the info.
 
Tinken said:
Reduced back pressure from the exhaust allows more air to flow past the throttle body and more fuel must be added to compensate or a lean flame out will occur.



bypass adjustment to cure low throttle stall: http://www.cafehusky.com/threads/new-muffler-for-te-449.19761/#post-173176

Do you have the map shunt installed? Are you in race map II configuration?
If the new map setting & tbi bypass adjustment doesn't cure your problem, I would suggest grounding your frame and tbi unit in reference to one of my links posted above.
http://www.cafehusky.com/threads/te-511-flame-out.28714/#post-257766

The JD tuner will not cure flame outs, flame outs are a lean tbi burst error caused by the keihin ecu mapping. The JD tuner is an inexpensive way to add fuel on top of the stock mapping which results in more power. The only way to cure flame-outs is to replace the keihin maps with a new ecu unit which allows map adjustment such as the powercommander 5 or Bazzaz, who both have units available.

http://www.bazzaz.net/index.php?pag...tegory_id=68&option=com_virtuemart&Itemid=181

http://www.bazzaz.net/index.php?pag...ategory_id=3&option=com_virtuemart&Itemid=181
Click to expand...

While I understand the logic, my experience is that flameouts have gone away since I installed JD tuner on 2 different bikes (511 and 449)...it may be that the extra fuel is just enough to overcome the blips, but I can attest that the problem was quite noticeable before and gone now.
 
jerbear610 said:
Interesting topic. Can one of those units be used in conjunction with the JD Tuner or would you have to remove it ? Also, which unit is better
between the PC V or Bazzaz ? I'm also going to do the ground wire thing you suggested. Thanks for the info.
Click to expand...
I asked Ty Davis today about the Bazzaz. He said, while the Bazzaz is cheaper, it has a very large harness. He said that both units are very high quality, but that the pcv is worth the extra money/effort and is what they used on the race bikes. They had higher gains on the 250/310s than the 449s, but the 511 had much higher performance. He also said that each bike could be dyno'd and tuned to amazing results.

In no way am I knocking the JD, It is an outstanding unit and is very inexpensive, but does not allow actual map change. Working on the pcv takes extra time and is not a solution for everyone, but when tuned correctly, can offer higher customization and performance gains.
 
I just order a pcv today for $360 and I will have it dyno tuned next week. I look forward to the results this will bring. Thanks for your help and advice it is very much appreciated.
 
I was doing a little research on these too. There's a shit load of different tuners out there. The Dynojet PCV and Bazzaz are the two I was looking at but
would be interested in getting more feedback from someone who knows about this stuff. Where did you get your PCV from ? I found them on sale here
for $270 https://www.motomummy.com/dynojet-powercommanders/dynojet-powercommander-v/. If you provide your bikes configuration at time of purchase they
will pre-program it for you. I'm going to hold off for bit before consider buying one until I get some feedback. Let us know when you get yours going, Doug.
 
That is a great price for a power commander. I found mine on Ebay. It is new with warrenty and everything. I will post the progress when it is installed, hopefully sometime at the end of next week. But the reason I went with the power commander was I have used one before. I put one on a 02 Triumph Sprint RS and wow what a difference it made. You can download maps for it but I took mine to be dyno fitted. It worked amazingly well for my Triumph, and I hope for the same results for the Husky. I will keep in touch.
 
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