low power and brake issue

Donlon McGovern mcgovern at hevanet.com
Mon Jun 2 17:16:02 PDT 2008


One other thing to mention is that with all that gas going through some of 
it's bound to wind up in the crankcase thinning out your oil. I would 
suggest changing your oil before running it again.
don mcg

----- Original Message ----- 
From: "Wendell Crain" <wendell_crain at hotmail.com>
To: "Suzuki SV650 Mailing List" <sv650 at micapeak.com>
Sent: Monday, June 02, 2008 11:40 AM
Subject: RE: low power and brake issue


> Well, I took the "3 week wonder" to the track and something definitely 
> isn't right. During the second 20 minute session, I ran out of gas. I know 
> I didn't have the tank all the way full, but this was excessive. I ended 
> up using about 7 gallons for evening. There was so much fuel going through 
> it, you could smell it in the exhaust. I never even thought to check that 
> before. The bike had no top end power at all. Going with WOT, I was at 
> least 10 seconds down on a lap time. I know I am slow, but definitely not 
> that slow. We rode the primary bike for the endurance race on Saturday and 
> going through the pits, I found someone that loaned me some smaller jets. 
> (Based on another mechanics advice there, his suggestion was to go to 
> around a DJ130 and remove both shims from the nylon spacer on the 
> needles.) So I spent Saturday evening swapping over to the smaller mains 
> and trying very hard not to lose any small parts inside my tiny trailer. 
> In Sunday practices, the bike seemed like it had a bit more, but I was 
> still down 8-9 seconds and this was going around most corners WOT. I 
> wasn't using quite as much fuel though. While the bike was running you 
> could still smell unburnt fuel, just not as strong. The mechanic made 
> suggestions on things to try, since I have 2 weeks before the next round. 
> Since I have DJ mains in it and stock needles, he recommended buying the 
> DJ needles (or complete kit). I do have another set of carbs I had 
> purchased, so he recommended setting those up to see if something is wrong 
> with the first set. (As a quick easy test without tearing the first set 
> down to find an issue.) Rebalancing the carbs. Do a compression check. 
> (Anyone know what kind of number I would look for in central Ohio?) If the 
> compression numbers don't look good, a leak test would be next. (I really 
> don't have a clue on how to do that one.)
>
> Wendell
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