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 The previous version was outdated and no longer supported.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

Poll - 449/511 EFI butterfly removal

449/511 EFI butterfly removal

  • Total voters
    97
huskylove said:
I want the beta cross trainer....Sick of all these valves and stuff
Click to expand...

I like valves, just not in my inlet tract connected to the ECU :D

It is one concern of mine with the new Sherco that I will be digging into PRIOR to purchase. they are running out the same

'ECU controlled smooth power' line Husky used with the TEs... :banghead:

None of that rubbish on the Yami or Suzi, both are end-user tunable systems :thumbsup:
 
G450X running Akro and PCV from day one, have not had flame out/hanging throttle issues, this does not seem to be the same issue it is on the TE for some reason. However I have always been disappointed in initial throttle response. Had my first and only (hopefully) flame out yesterday so pulled the FBW butterfly and left the idle up arm in place. Still starts instantly hot or cold and throttle response is now brilliant. I will try some accelerator pump settings as well, but wanted to try one change at a time. Thanks DM.
 
Campbell said:
G450X running Akro and PCV from day one, have not had flame out/hanging throttle issues, this does not seem to be the same issue it is on the TE for some reason. However I have always been disappointed in initial throttle response. Had my first and only (hopefully) flame out yesterday so pulled the FBW butterfly and left the idle up arm in place. Still starts instantly hot or cold and throttle response is now brilliant. I will try some accelerator pump settings as well, but wanted to try one change at a time. Thanks DM.
Click to expand...

The accelerator pump on the PCV is abrupt, especially with the butterfly removed. Start small and work your way up.

I started big thinking it worked like the JD Accelerator Pump, and almost looped the bike on several occasions after turning on the PCV AP. If you are woods riding, I think a tiny bit of AP just past 0% throttle would be good. Anything beyond that and you are playing with fire, in the woods.
 
Cosmokenney said:
The accelerator pump on the PCV is abrupt, especially with the butterfly removed. Start small and work your way up.

I started big thinking it worked like the JD Accelerator Pump, and almost looped the bike on several occasions after turning on the PCV AP. If you are woods riding, I think a tiny bit of AP just past 0% throttle would be good. Anything beyond that and you are playing with fire, in the woods.
Click to expand...

Thanks for that, I was going to start with the settings on Tinkens 511 map?, what settings did you settle on?

Thanks Campbell
 
Campbell said:
Thanks for that, I was going to start with the settings on Tinkens 511 map?, what settings did you settle on?

Thanks Campbell
Click to expand...

Haven't decided on a setting yet. I have to get in there and play with it more. Last time I had it hooked to the computer I was setting up the AutoTune and forgot to tweak the AP. Besides, my 2T has been getting all the attention since then.
 
Dangermouse449 said:
I have thought about this too.
I had the idea, & I may be wrong, but with the FBW butterfly in place there would be some vaccum below it & the map sensor would send signals to the ecu looking for leaner mapping.
With the butterfly removed, an open primary butterfly would have very little/no vaccum at the MAP sensor, the ecu should head off looking for the richer maps.

All just a theory, until I have my AFR meter up & running, but I've put a lot of thought into it (Maybe too much ha ha ha) :)
Click to expand...
Edit.
I worked out not long after this post, the map sensor plays no part in the fuel mapping while running.
As far as I'm able to tell, the map sensor is only used to give the ecu an atmospheric reading after key up, PRIOR to starting.
I've run the engine with the map sensor hanging by the wiring & the port blocked. It ran perfectly.

Regardless, the bikes run well without the second butterfly. :)
 
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