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 The previous version was outdated and no longer supported.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

What enables the ECU to fire up the engine

FHSAE;116688 said:
The transmission is in neutral, all fuses are good, all switches shorted correctly, including the clutch. I got some variable resistors and set them to the exact resistance for the fall sensor, no signal to the relays.
Click to expand...

still nothing figured?

If everything is good I'd suspect "your variable resisters set exactly to the resistance of the fall sensor" I am guessing you have a TE motor and had an SM wiring harness. Because the TE did not come with the Fall Sensor. SO if you had a fall sensor then this is the case... I would just get the correct "TE" Resister that is in place stock instead of the fall sensor on the SM's. If you have the Fall sensor you could through that in for a simple test- unless it was damaged- spose you did that already though.

based on the parts diagram pgs 162 and 163- parts 53 and 56...
M 53 8000 A6756 Fall sensor
W 56 8000 A6774 Tilt sensor plug

M= sm
W= te
Click to expand...
 
ray_ray;118093 said:
Who made that pipe for this beast?
Click to expand...


The muffler was a Muzzy Titanium, the rest of the exhaust was designed and built in shop by us.


HUSKYnXJnWI;118120 said:
still nothing figured?

If everything is good I'd suspect "your variable resisters set exactly to the resistance of the fall sensor" I am guessing you have a TE motor and had an SM wiring harness. Because the TE did not come with the Fall Sensor. SO if you had a fall sensor then this is the case... I would just get the correct "TE" Resister that is in place stock instead of the fall sensor on the SM's. If you have the Fall sensor you could through that in for a simple test- unless it was damaged- spose you did that already though.
Click to expand...


The TE and SM have the same plug, the TE had a resistor plug instead of a fall sensor, that plug is what I'm emulating with the variable resistors. We would order the part, but our average lead time for these things has been 4 months.
 
Check for power on each of the following and let us know whats going on.

Component/Pin/colour/expect to see

1/9/Brown Black/12V
17/4/Yellow Red/12V
39/6/Brown White/12V
25/1/Brown Black/12V

Work from the top down, stop once you see you have 12V somewhere.

Also check too see if that resistor 110 ohms in the wiring somewhere, I have no idea what its for but is probably important.

Cam
 
Got it to fire up. Someone from the previous team who is no longer with us "accidentally" put one of the cams in backwards.

Thanks for all the help guys!
 
yea, that'd be an issue...I don't see how that would have created a no spark no fuel situation- but it would definitely make it hard to start the motor with a cam turned 180'. Thanks for reporting back, and Good luck!
 
Yeah, glad you got it going, but it doesn't explain the spark/fuel problem. There had to be something else involved.
 
We got it to run by bypassing that relay, I'm unsure of if the engine will start without it bypassed, but we were getting weird signals from the ECU on the oscilloscope so something else might be wrong as well.
 
You must log in or register to reply here.
Back
Top