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View Full Version : What size Main jet ?


boo86
22-08-08, 03:13 PM
Hi guys, my saga of getting my fuel and air to mix in a productive way continues.
I was wondering what size jets are you guys running ? and with what filter/exsaust combo ?
It just seams logical to ask rather than starting from square 1 my self.

Also I've been reading about 'open top' BMC race filters, any body got any experiance with them ?

Thanks,

yorkie_chris
22-08-08, 03:35 PM
Me: Micron system, chopped down can, BMC race RS filter (open top one), tank raisers, defoamed tank. 160 mains (mikuni sizing), drilled slide holes AFAIK

boo86
22-08-08, 03:40 PM
Cool, that's the way I'm heading. I've got a cut down scorpion can (down to 8", 104 decibels @ scrutaneering) Or a micron race can, standard lengh.
A BMC road filter with the top cut out, driled slide holes and mystery jets that were in the bike when i got it. It's runnign a little lean.
I'm looking for 160 mains on the net now, I can't find anything larger than 152.5, which I've ordered. Where are your's from ?
Does your sv ride nice ?

cheers, Boo

yorkie_chris
22-08-08, 03:44 PM
Mines a little bit rich, but that's the choke plungers, was alright before.

I would guess 160 is too big on standard system, the micron doesn't flow too well, but still an improvement over standard.

boo86
22-08-08, 03:47 PM
Rather rich than lean

check mine out.
There should be a pic attached.

boo86
22-08-08, 03:49 PM
try again

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http://img169.imageshack.us/img169/6995/dsc06748os1.th.jpg (http://img169.imageshack.us/my.php?image=dsc06748os1.jpg)

boo86
22-08-08, 03:52 PM
try again again

http://www.nemcrc.co.uk/pages/gallery/86348.php