jetting

KC Gager kc at brgracing.com
Wed Oct 3 08:38:25 PDT 2007


Ernie 
More then likely the needle placement is off. If you want come by 65 buck
I'll base line it and tell witch way to go on the needle. I'm sure you can
change it with out help :-). Reno in most case wants more fuel up there. 

KC Gager
BRG Racing Products
"We Have Sickness For Quickness"
KC at brgracing.com
http://www.brgracing.com
(925)672-5789
 

-----Original Message-----
From: Ernest Montague [mailto:afm199 at earthlink.net] 
Sent: Wednesday, October 03, 2007 8:26 AM
To: Suzuki SV650 Mailing List
Subject: Re: jetting

This is for a friend's bike that he got with 140 mains, a pipe, K&N, 
and needles from factory.  The midrange at Reno Fernley sucks.   I 
think the needles are too high, the mains too small and I am going with 
either a stock filter for the 140 mains, or 150s with the K&N and  
pipe.  Also shim stock needles 40 thou and change pilot jets.

Ernie


On Oct 3, 2007, at 8:21 AM, KC Gager wrote:

> Was this east cost tuning or was in out here on the west cost. And yes 
> there
> is a difference a big difference.
>
> KC Gager
> BRG Racing Products
> "We Have Sickness For Quickness"
> KC at brgracing.com
> http://www.brgracing.com
> (925)672-5789
>
>
> -----Original Message-----
> From: Jim Stewart [mailto:js at strappe.com]
> Sent: Saturday, September 29, 2007 6:36 PM
> To: Suzuki SV650 Mailing List
> Subject: Re: jetting
>
> Ernest Montague wrote:
>> OK guys, there is a stock formula that used to work pretty well for 
>> gen
>> one carbs with a race pipe and aftermarket filter or opened up stock
>> filter....
>>
>> Anyone remember?
>>
>> 148 mains?  I do remember shim the stock needles 40 thou.
>>
>> Ernie
>>
>
> Hi, Ernie -
>
> After half a million dyno runs, Jack Roe developed a formula for 
> desnorkeled
>
> airboxes and race pipe: 152.5 mains, 17.5 pilots, two shims (.040") 
> under
> the
> needle, pilot screw at 2.5 (I think). He later recanted and 
> recommended the
> stock 15 pilots and 3 turns. He also recommended drilling out the 
> bleed hole
> in
> the slide, but that didn't seem to make any difference on my bike.
>
> It turns out that the desnorkeled airbox is a bad choice for a street 
> bike -
> big
> flat spot at 5K or so. Maybe it works for a racebike - others can 
> surely
> tell you.
>
> I have my own preferred settings for a street bike, but you're 
> interested in
>
> your racebike I assume...
>
> -js
>
> -- 
> http://www.strappe.com
>
>
>
>



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