Suzuki SV650 Riders Forum banner

1 - 17 of 17 Posts

·
Premium Member
Joined
·
393 Posts
Discussion Starter #1
Hay tere,

I have a 02 S. Bought it about 2 years ago. I put a pipe on it. Slipon.

I had someone tell me last year that it smelled like it was running rich.

Should i have it jetted? Is it a good idea to do at some point of its life.

I have not had the carbs serviced in any way since i bought it. Almost 20k.

Tanks.
 

·
Registered
Joined
·
105 Posts
if it is stock otherwise, you are more than likely running lean, not rich. I don't think anyone ever reduces their jetting from stock, esp after adding a pipe.

how reliable was the nose?
 

·
Premium Member
Joined
·
393 Posts
Discussion Starter #3
if it is stock otherwise, you are more than likely running lean, not rich. I don't think anyone ever reduces their jetting from stock, esp after adding a pipe.

how reliable was the nose?
The nose?
 

·
Registered
Joined
·
5,407 Posts
If it's actually running rich the likely cause is a dirty float needle(s) allowing the float level to run too high and dumping excess gas into the intake.
Pull a plug to see if it really is running rich, if so give the carbs a good cleaning.
 

·
Premium Member
Joined
·
531 Posts
A slip-on barely changes the airflow. You don't need to re-jet for that. I'm with Rich on this one - gummy old carbs from long winters in storage.
 

·
Registered
Joined
·
7 Posts
Get a dyna jet kit, pronto. It takes about 1.5 hrs to install with simple hand tools.
If you are running a pipe, you'll be pleasantly surprised by the performance increase.
And, you won't have to worry about toasting the valves because the exhaust system has been opened up.

Not to mention, if pipe you have is bafleless, you are running lean too at the moment. Not good.

Suzuki designed the SV 650 with a number of environmental factors built into the jetting [ lean at certain rev ranges, rich in others, a slight retard to the ignition in gears 2 and 3 to pass certain noise laws]. Your job as an enthusiast, is to maximize the performance. Putting a pipe on an SV650 without the jetting changes is going for the bling, not the oomph,

I run a stock pipe on my 1rst generation SV. I commute to work on the thing, rattling thru the neighborhood @ 6 am. I don't want to **** off the neighbors unless I have no choice.
Wheely practise is not a quiet activity in the best of situations.

The dyna jet kit I put in mine does not have the largest main jet in the kit used for running an aftermarket pipe. I use a slightly smaller main jet, with adjusted increases at less than full throttle. It comes with several main jets. The info is in the instructions.




riverduffer
 

·
Registered
Joined
·
160 Posts
i was told my 02 smelled rich too, plus the tip of the exhaust had a good bit of black on it. stock carbs with a slip on. one thing that i realized is that i had went with the alternative spark plug for the bike. i wanna say it was a cr9e instead of cr8e. i seen a decent change one i put the 8s back in the bike and cleaned the tip. no more complaints from that guy and no more black tip. probly not your problem but it worked for me
 

·
Registered
Joined
·
6,503 Posts
First synchronize the carbs. Next, check the plugs to make sure they are clean, the right temperature range, etc. Get some Sea Foam and treat a tank of fuel and ride that tank out. Now check again. If it still smells rich, is it just at idle? In that case the previous owner may have backed the idle mixture screws out too far. It may be a good investment to have it tested on a dyno with an EGA.

Some SVs actually do run rich.
 

·
Premium Member
Joined
·
393 Posts
Discussion Starter #11
Awesome responses cats/kittens. Gonna run a tank of the foam through it pronto. Still blasting out a tank of fuel stabilizer. Had a 1/2 tank day about a weeek ago.

If jetting it and having the carbs synched (should i get the tool and do it myself? ) is less than $150 or so, should i not do it as a matter of due process?

d
 

·
Premium Member
Joined
·
393 Posts
Discussion Starter #12
As in, how "new" was the person who said you smelled rich?

+1 to - if it is running rich, it is another issue (not the size of the jets)
OHHHH. It was some business man on a harley. But looked like he drives all the time. Old Electraglide. Or some such thing.
 

·
Registered
Joined
·
6 Posts
Seafoam works wonders, from the moment you start the bike it will burn out all the guk. let your bike idle for maybe 5-10 minutes to let it run through the bike. i wouldnt run it in your garage, the smell is foul and the smoke is thick.
 

·
Registered
Joined
·
6,503 Posts
Mixed properly in the fuel tank it will clean mildly gunked up carbs in one tank. Depending on how bad the carbs are it may take more than one tank. One can will treat about two tanks full. It doesn't smell or smoke much at all if you mix it per directions.

They do have a procedure where you suck some directly into the intakes, but I've never found that very effective. Lots of smoke and stink, few results. Same with putting it the crankcase. I've had better luck using a CE or CD rated oil. If you change oil per recommended schedule and use a decent oil you shouldn't have problems with crankcase sludge. For example, I've gone 100,000+ miles on hot rod V-8s using Rotella, and on teardown the heads had zero sludge, the pan only a thin film of varnish on the bottom.
 

·
Registered
Joined
·
8,290 Posts
Seafoam is at most auto parts stores and Wallmarts. And yes, it is great stuff. Don't get put off by the funky packaging and the price (about double what the competition costs) -- it's the best.



As for the jet/no jet issue: A slip on should not require a rejet. As has been said by others, try cleaning your carbs (try Seafoam first, before a tear-down) and checking the settings.
 
1 - 17 of 17 Posts
Top