only getting 45mpg on 2001 svs?
Mike Carter, Jr.
wacky_woodchuck at yahoo.com
Tue Jul 22 18:06:01 PDT 2008
I wa running stock jetting and getting 50~55mpg right from the show room floor. I never had it dyno'd in stock form, so I don't know if it was really lean or not.
Once I went with the larger set up, it came alive and felt much much better and the dyno curve showed it as well.
----- Original Message ----
From: Jo Rhett <jorhett at fastlizardracing.com>
To: Suzuki SV650 Mailing List <sv650 at micapeak.com>
Sent: Tuesday, July 22, 2008 3:47:17 PM
Subject: Re: only getting 45mpg on 2001 svs?
I take it from your numbers that before you started jetting it was
very lean? And that the only way to get those 50-55mpg numbers is to
lean it out, perhaps too much?
On Jul 18, 2008, at 12:31 PM, Mike Carter, Jr. wrote:
> Stock jetting, I would get 50~55 mpg frequently on my 2000 naked.
> This was normal 55mph~60mph riding on back country roads. Highway,
> it would drop down to around 48mpg.
> Then I rejetted when I added my dual Renegades (152.5 mains, hogged
> out stock air filter, 17.5 pilots, drilled slide hole, 2.5 turns on
> the A/F screw, dynojet needle on the third clip) and it was dyno
> tuned to have the perfect A/F ratio throughout the rev range. I was
> getting 45 mpg EVERYWHERE. No matter, if I rode two up, one up
> loaded for touring, track days, spirited street, highway...any
> combo... I always got 45mpg in return.
> When I did the 03 intake cam swap, it jumped up to 48mpg everywhere
> with no changes...but my jetting was off (according to the dyno). I
> had to up to 160F/162.5R mains. And as expected, my mileage
> decreased to around 44mpg.
> Now I have a set of 41mm Kehien FCR's... I really don't care about
> mileage...it's just too much fun to ride now.
> What I am trying to get at here is...if you have any type of jetting
> change, open exhaust, etc... you will get right around 45mpg. I've
> seen it on my bike and few other first gen SV's I ride with as
> well. If I was to jet for mileage (and rideability second), I would
> go with the stock setup (oe filter with the snorkle in it, 137.5
> mains, 15 pilots at 2.5 turns and stock needle with no shim under
> it). But to get a compromise (I have rejetted a few friends to this
> and they love it). Stock air filter (snorkle still intact), 140
> Mikuni mains, 15 pilot, 3 turns on A/F, drilled slide hole, 1 shim
> under the needle and stock exhaust. Runs much better and the
> throttle response is VERY good.
> And who said jetting isn't fun?
> ----- Original Message ----
> From: Jo Rhett <jorhett at fastlizardracing.com>
> To: Suzuki SV650 Mailing List <sv650 at micapeak.com>
> Sent: Friday, July 18, 2008 2:41:07 PM
> Subject: only getting 45mpg on 2001 svs?
> I figured my gas mileage was a bit low, but after measuring for a
> month or so it's pretty dead average 45mpg. I swear I used to get
> 52mpg on my 2002 before I turned it into a racebike.
> This could all be in the throttle hand, obviously. But 7mpg seems a
> bit much for just that.
> Besides cleaning the air filter, anything else I should check?
> Jo Rhett / velociRaptor Racing
> #553 WERA / AFM
Jo Rhett / velociRaptor Racing
#553 WERA / AFM
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