only getting 45mpg on 2001 svs?

Randy Grein randygrein at
Tue Jul 22 21:42:00 PDT 2008

Jetting on my street bike is stock - no changes at all. And I just  
checked, with the fairing and hard bags I'm getting 55 mpg freeway,  
averaging just over 70 mph. I did drop a tooth off the rear sprocket  
which seems to have helped - makes me wonder what going to a 16/45  
setup would do.

Randy Grein, WMRRA #41

On Jul 22, 2008, at 12:47 PM, Jo Rhett wrote:

> 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  
>>'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?
>> Mike
>> ----- Original Message ----
>> From: Jo Rhett <jorhett at>
>> To: Suzuki SV650 Mailing List <sv650 at>
>> 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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