Help Needed

Doug Pippin d_pippin_89 at bellsouth.net
Wed Jul 27 05:00:05 PDT 2011


Thanks for the replies.
I removed the carburetors again and removed all the jets. pushed 
small wire through them and blew them out with air.
Didn't really see anything in the jets but it did the job.

Bike is running normally again.

thanks again

Doug

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At 11:38 PM 7/26/2011, you wrote:
>What KC said. pull the pilot jet and blow through it. Pull both of 
>them. They should let a small amount of air through. IF they don't 
>you need a 6 thou wire to clean them.
>
>
>On Jul 25, 2011, at 7:58 AM, Doug Pippin wrote:
>
> > Any suggestions to my problem here?
> >
> > I have a 99 SV650 track bike that recently started acting up.
> > When I'm on the track and have full or almost full throttle the 
> bike runs well.
> > Once the RPM's drop it doesn't run clean. Sputters and pops somewhat.
> > The problem started while I was riding on the track.
> > The engine starts normally and runs at higher RPM but sputters 
> and pops when in lower RPM.
> > It backfires when you release the throttle and sometimes when 
> it's shut off.
> >
> > I've removed the carbs and checked them visually and everything 
> seems OK there.
> > I've replaced both the coils to eliminate any problem there.
> > I removed the valve covers and checked the valve timing and it is 
> correct according to the timing mark on the generator.
> > This bike has the 2nd gen camshaft swap and it ran well for a 
> season and half until recent problem started.
> > I've checked the compression and it's good.
> >
> > So I'm scratching my head as to what's wrong.
> > Is there a problem with SV's where the key on the generator may 
> shear making the valve timing off?
> > Does this sound like it may be a ECM  (igniter) problem?
> >
> > I'm going to remove the carbs and go through them again to see if 
> I missed anything.
> >
> > Any suggestions?
> >
> > thanks in advance
> > Doug
> >
> >
> > ----------
> > Doug Pippin
> > 828-684-8488
> > <mailto:>d_pippin_89<mailto:>@bellsouth.net
> >
> > ----------
> >


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Doug Pippin
828-684-8488
<mailto:>d_pippin_89<mailto:>@bellsouth.net

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