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 The previous version was outdated and no longer supported.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

TE449 with PCV - First Ride

domrvt

domrvt

Husqvarna
AA Class
My bike wouldn't take the ECU flash so I went with a PCV. I had been having flame out, dead throttle, and hot starting issues. I ran the PCV with Zipty's Factory Race Map, and I have a stock exhaust with cat. The bike ran great with the exception of one incident.

I was going real slow in 1st gear for a while and it just shut down. I couldn't bump start it, seemed like the ECU didn't want to fire. I coasted for a mile or so downhill then got it to start. I'm going to assume it was overheating. Might need to add a second fan for that type of riding. I've seen mentioned that people carry a spare temp sensor; can this be swapped while the coolant is hot? I'm running XF by the way.

Some other general observations:
I tightened the chain to 5mm or as close as I could - that is really tight! Are you guys running that tight?
I filled with 1150ml of M1 10W40 and had no oil enter the airbox. I'm running the stock venting setup. Previously I had been running 850ml, so I was really expecting some oil mess this time.

Overall I'm pleased with the improved rideability the PCV offers. I didn't do any 3rd gear power wheelies as others have claimed. Not sure if that's due to my limp wrist or stock exhaust. Either way, the FMF 4.1 is up next for me. Waiting on backordered header parts.
 
The FMF will add a little more pop. The JD Tuner also adds more power. The PCV's affect on the power is more subtle but it does make it more responsive.
The best thing it does is allows you to ride whatever trails you want without having to worry about flaming out or riding in "flame out prevention mode" two
fingers always on the clutch.
Well I was going to suggest getting some of this .....
for your overheating issue but after re-reading your post I see you're already using it. Good stuff.
 
The chain needs virtually no slack because the swingarm and CS sprocket have the same pivot point....I wouldn go quite that tight, but a pinky finger width works fine.
 
domrvt said:
I tightened the chain to 5mm or as close as I could - that is really tight! Are you guys running that tight?
Click to expand...



Compared to a regular bike without cts, it seems like you are setting the chain too tight on your husky (which is not the case). If I do anything less than "as tight as I feel comfortable getting it", It makes all kinds of racket at low speeds hitting the bracket by the front sprocket. At first I thought something was wrong with the engine. Tighten it up!
 
domrvt said:
I was going real slow in 1st gear for a while and it just shut down.
Click to expand...
The stock fan helps, but it is not there to totally take over cooling. If you travel very far in first gear, the bike will get very hot. It's good you are running XF so you won't loose your coolant and become stranded. You won't boil over with the XF, but it will eventually shut off from the temp sensor, which sounds like is working perfectly. I have done this many times.

There are fan options like the Dirt Tricks secondary fan. It's only 8 watts and can be wired onto the stock fan to come on when hot or on a switch.
 
hi there,i have bought a pcv and fitted it. so far im still having problems with the cough and stall. going to pay for bike to go on rolling road this week. the bike is a 2011 with a full titanium arrow race system, standard filter, have tried the zip maps but no great results, I have removed the second butterfly and have been trying to get some good throttle response out of the bike since I bought it. it just hasn't got the snap that nearly every bike I have owned has had. it accelerates well but in real technical going, or real fast moorland going it. just surges forward rather than popping into a wheelie(yes it will wheelie but it is like no other bike I have ever ridden,could be the cts system?) . anyway any help would be great as otherwise its going to be sold and a yam or ktm bought(had both before and both will out perform this bike).
 
domrvt said:
My bike wouldn't take the ECU flash so I went with a PCV. I had been having flame out, dead throttle, and hot starting issues. I ran the PCV with Zipty's Factory Race Map, and I have a stock exhaust with cat. The bike ran great with the exception of one incident.

I was going real slow in 1st gear for a while and it just shut down. I couldn't bump start it, seemed like the ECU didn't want to fire. I coasted for a mile or so downhill then got it to start. I'm going to assume it was overheating. Might need to add a second fan for that type of riding. I've seen mentioned that people carry a spare temp sensor; can this be swapped while the coolant is hot? I'm running XF by the way.

Some other general observations:
I tightened the chain to 5mm or as close as I could - that is really tight! Are you guys running that tight?
I filled with 1150ml of M1 10W40 and had no oil enter the airbox. I'm running the stock venting setup. Previously I had been running 850ml, so I was really expecting some oil mess this time.

Overall I'm pleased with the improved rideability the PCV offers. I didn't do any 3rd gear power wheelies as others have claimed. Not sure if that's due to my limp wrist or stock exhaust. Either way, the FMF 4.1 is up next for me. Waiting on backordered header parts.
Click to expand...
If it was overheating, perhaps it is something to do with your new richer fuel maps and standard exhaust.
The Australian delivered bikes get the Akra slipon muffler that opens up the exhaust a bit from standard.
I run regular coolant in 35C temps, lots of slow speed clutch slip on hills etc 1st to 3rd gear work & never had it cut out.
The stock fan runs its cycles and goes off again and does a great job.
Seems a bit of a mystery to me.
 
richie lee said:
hi there,i have bought a pcv and fitted it. so far im still having problems with the cough and stall. going to pay for bike to go on rolling road this week. the bike is a 2011 with a full titanium arrow race system, standard filter, have tried the zip maps but no great results, I have removed the second butterfly and have been trying to get some good throttle response out of the bike since I bought it. it just hasn't got the snap that nearly every bike I have owned has had. it accelerates well but in real technical going, or real fast moorland going it. just surges forward rather than popping into a wheelie(yes it will wheelie but it is like no other bike I have ever ridden,could be the cts system?) . anyway any help would be great as otherwise its going to be sold and a yam or ktm bought(had both before and both will out perform this bike).
Click to expand...
Here's the weird thing I noticed with our 13 449 and 511 bikes. They just don't have the snap, I also recently bought a 14 YZ 450 and understand what your saying. The YZ just flat rips all the way threw the throttle just pulls like a freight train, feels way faster wheelies in all gears and hauls arse. The huskys feel slower more relaxed comfortable ride, throttle response is no where as quick as the YZ. I have fmf, map 3, and smog junk off on huskys and YZ is completely stock. But drag racing all 3 bikes together the huskys are only a couple bikes behind the YZ and depending on the start will get the jump off the start. They are very different bikes on how the power delivery hits and the YZ is faster but after riding them back to back huskys aren't that far off and are way more comfortable and street legal.
 
Dangermouse449 said:
If it was overheating, perhaps it is something to do with your new richer fuel maps and standard exhaust.
The Australian delivered bikes get the Akra slipon muffler that opens up the exhaust a bit from standard.
I run regular coolant in 35C temps, lots of slow speed clutch slip on hills etc 1st to 3rd gear work & never had it cut out.
The stock fan runs its cycles and goes off again and does a great job.
Seems a bit of a mystery to me.
Click to expand...

This thread is pretty old, haven't had the issue since swapping the exhaust. I think you are correct.
 
Teambowles said:
Here's the weird thing I noticed with our 13 449 and 511 bikes. They just don't have the snap, I also recently bought a 14 YZ 450 and understand what your saying. The YZ just flat rips all the way threw the throttle just pulls like a freight train, feels way faster wheelies in all gears and hauls arse. The huskys feel slower more relaxed comfortable ride, throttle response is no where as quick as the YZ. I have fmf, map 3, and smog junk off on huskys and YZ is completely stock. But drag racing all 3 bikes together the huskys are only a couple bikes behind the YZ and depending on the start will get the jump off the start. They are very different bikes on how the power delivery hits and the YZ is faster but after riding them back to back huskys aren't that far off and are way more comfortable and street legal.
Click to expand...
If the Huskys are TEs or TXCs they will have a second electronic butterfly dulling the throttle response. It doesn't stop full power, but stops the initial hit when you crack the throttle open making it harder to pull wheelies etc.
You can remove the plate from the shaft with no ill affects and get that snap back.
 
yes pulled the butterfly on mine but still a lack of snap (lots better than before though) compared to a ktm or yam or most others to be honest. the bike isn't slow but seems to suffer too much flywheel affect.
 
I have a 2011 TE511. Mega bomb header, FMF muffler. ECU remapped by ZipTY. JD tuner still installed and used. Secondary BF removed. Bike freaking RIPS hard. Makes my 07 YZF450 feel slow. These bikes are kittens stock and rockets uncorked if done right.
 
Definetly not bashing the huskys, they have been very reliable fun bikes either in dirt, sand or mo tarded out. For me the torque limiter thing is a worry, once you pull all the power out of the bikes and put full hp to rear wheel the tl may not last or be able to hold up. I put jumper in made a little difference, fmf pipe big difference, map 3 another improvement. I may try the butterfly thing. I have two of these 449 and 511 so buying tuners etc...not in the cards for cost reasons. The 14 YZ 450 out of the box is fast as hell but not as comfortable, nor is it as much fun as being able to ride on the street like the huskys. It seems to me that there just different bikes huskys are tamer than a full mx bike. They all serve whatever purpose we bought them for. As they sit in my garage right now I have a bunch of choices and that's just bitchin.
 
Teambowles said:
Yup te's been thinking about it
Click to expand...
This is a video I did of the system on my bike, real world riding around my estate on the road (not on a dyno) at 120 frames per second.
It shows the delayed secondary butterfly operation.
Keep in mind both shafts turn clockwise to open, so the paint marks should travel away from each other for more air to enter the engine. Removing the second butterfly is a quick easy way to add throttle response.

TE Dual Throttle Operation Slow-mo:
View: http://youtu.be/7Vn_9JxDOz8
 
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