trying to workout what needle i need but cant get win su to work

I have a 1098 , single HS4 carbie Factory 3-1 extractors with a 2 inch straight through exhaust with a hotdog muffler
seems to run rich no matter how i set the adujstment thinking i have the wrong needle
can anyone help

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I reckon this is a pretty good program http://www.mintylamb.co.uk/suneedle/ or this http://www.teglerizer.com/cgi-bin/needle090db.cgi

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http://www.youtube.com/user/Hanras

cheers

Now i just need to know how to work it

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The 1st 1 is pretty simple just select jet size 90tho, then put in ur needle type or select another u want to compare to n it will plot it on a graph

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http://www.youtube.com/user/Hanras

a 1098 with HS4 should NOT have a 2" exhaust.

I had one, and replaced it because the muffler was shot (bought second hand). I put in a 1.75" with twin box RC40 and I gained a noticable amount of HP and torque.

WinSU says ABY

I was recently running a similar setup in JAM and had a ADS needle. It was PERFECT

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Website: www.justanothermini.com

Cheers Anton
i will try that needle

whoops a little
as i measured my Zorst and its 1"3/4 pipe not 2"

so i am glad i dont have to replace it

cheers

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Let me know what you have, before going out and buying a new one ($20?)

The ADS is a fair bit leaner than the WinSU recommended one for that spec. The ADS was great for me!

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Website: www.justanothermini.com

finaly got to check out what needle i have its an ADF

its a bugger when work gets i the way of Miniing

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ADF is a standard Clubman HS4 needle.

I have a few HS4 carbs, all have ADF needles.

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Website: www.justanothermini.com

has anyone heard of anyone using a 2inch SU on there mini? Whats the Part Name Eg HS4 or HS6