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June 24th, 2011, 03:44 AM   #1
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Jetting Husaberg 650 Akrapovic Titanium HELP

Hello to everybody I Am the founder of Husaberg Italian Forum .
I need help.
What tipe of jetting do you have on yours Kehin FCR mx 41 ??
I have main jet 178... but maybe it still small. I am 679 feet from sea lever. Thank you.
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June 24th, 2011, 02:46 PM   #2
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

What year 650?
I have a fs650 2004 and run a 160 or 165 main but not sure how far above sea level i am hope thats a help. I also have ti system akro. Regards Glenn
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June 24th, 2011, 09:16 PM   #3
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

I run a 180 main and a 45 pilot and the needle 3rd from top, i have run a Yamaha needle before at Finke desert race but im not sure of the number, the dealer in Alice Springs dyno tested my bike and fitted it. It ran good at the high speed.
John ORANGEBERG
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June 24th, 2011, 11:32 PM   #4
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

this is what you need!

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 1143wt_698

I have one or two accolades on the Taffmeisters web site for this kit.

prego

Taffy
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June 25th, 2011, 12:02 AM   #5
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

Thank you very much to everybody. My Husaberg is a 2008 FS so it fits keihin fcr mx 41. i have 178 mainjet and 45 pilot now i want to see the needle settage.
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June 25th, 2011, 11:54 AM   #6
oyk
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

hello,
for full titanium akro:

SILENCER ON:
160 main
45 pilot
OBEKR NEEDLE 2 position from top.

SILENCER OFF:
just move the needle clip
below 20celcius : 5 position from top
above 20 celcius : 4 position from top

race tested from sea level to 200m altitude
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June 25th, 2011, 05:04 PM   #7
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Re: Jetting Husaberg 650 Akrapovic Titanium HELP

I have the following jetting fs650 04
55 pilot
165 main
obekr 3rd clip from top
air screw 2 and 1/2 to 3 turns out.
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April 30th, 2014, 03:54 AM   #8
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I Ride: fs650 '04
Bike is 2004 fs650.
My actual spec is:
stock headers
rino slipon
main jet 178

Needle and pilot are stock.

Earlier I had stock 160 main jet.

AFR is too rich right now in mid and high rpms...

Shoud I change main jet to smaller one - what size would You suggest?
Or maybe play with the needle settings?
I am around 260m over sea level.
Todays dyno run

Last edited by toivias; April 30th, 2014 at 03:56 AM.
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April 30th, 2014, 04:27 AM   #9
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I would try a 160 or 165 MJ and 165 main air jet stock main air jet is 200

160 was lean probably at mid and high rpm ?

so the smaller main air jet makes the fuel curve nicer for the 160 main jet with increasing rpm.

also check if you have the EKR "stock" needle or the DVT "stock" needle, EKR is better IMHO
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April 30th, 2014, 08:12 AM   #10
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I Ride: fs650 '04
my full spec now is:
needle: OBEKR
idling jet: 45
main jet: 178
main air jet: 200
idle air jet: 100
needle position: 6
starting jet: 85

Earlier I didn't have place to plug o2 sensor, so can't really say if it was lean or not...

So You're suggesting to try:
165 main air jet
with
160 main jet

or better would be:
165 main air jet
with
165 main jet

?

Thanks for Your commitment

P.S.
I kinda like those backfires but if I can have few extra horses instead I can live without them.
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