• 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.

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    Thanks for your patience and support!

EFI settings @ 112, 114, 104

alkrisma

alkrisma

Husqvarna
B Class
My 2009 TE 310 EFI settings are (now) @ 112, 114, 104, what are yours? Why such a variation between similar machines? I'd imagine a point or two but some are way off compared to others, why? Are my 112, 114, 104 settings (allegedly) best for mine but not a VIN 20 units before or after?
 
I have no idea why they vary so much. I actually tried huskyte310's settings this past weekend and the bike felt way down on power so I think those settings are too rich for my bike. I am going to reduce them and try it again although it doesn't look like I am going to get out this weekend :(
 
It is just like jetting.with excepton to altitude, temp and other things sensors do for you.
Depends on riding style (DS or trails or MX), skill level (On the pipe lots vs chugging and things like that)
BAJA needs more fuel than north east single track or jersey stick farms or pacific north west snotty rooty sngle track.

Just saying there is no silver bullet setting for a particular model.
 
With EFI, the fuel pump pressure / injector duty cycle / cycles per second equals delivered fuel. The tables for atmospheric and engine compensation will be very close within a model.

The fuel pump output pressure is not held to a tight tolerance from pump to pump, though it stays consistent on each pump. Once your CO1/2/3 values are set to YOUR pump, the end product will be consistent.

What you can do with another bike's CO values is copy the spread and difference between ranges.

113 /110 / 100 for one TE310 once bike might be

110 / 107 / 97 for another.

The local alcohol and oxygenate content in fuels will also effect this - but you can still get in the ballpark IF YOU ARE LOOKING FOR THE SAME THROTTLE RESPONSE AS THAT OTHER USER.

In my tune up I put a premium on a smooth flat torque curve - like a big electric motor. I still achieve max power in the 70+% zone - but want predictability and control as I get there. I am not concerned with max power at 30% throttle - because I can TWIST IT to make more. I am concerned with losing traction with a hop and bobble in the torque curve.

That’s my opinion anyway.

MAT
 
Hey guys I have been reading with a bit a perplexion over the past several years about the varied CO settings. Being pretty ignorant as to why the same bikes should reguire different values. Thank you for the explinations above its almost an epiphany to a confused carby rider.
 
may i add that fuel diffs will have effect as well. race gas vs pump and pump here and pump there differences.
 
I am using three gallons of 93 oct. sunoco to one gallon 110 oct. Sunoco. That could have something to do with it.
 
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