Breaking-up/sputtering under load

Wayne Beaver wayne at acedsl.com
Thu Sep 4 09:55:21 PDT 2008


Sorry to keep nagging with this one, but after most recent test ride, the
electrodes on both (brand new...) plugs are quite white...does this indicate a
lean condition?

Thanks,

Wayne Beaver
NESBA #737 


> Date: Thu, 21 Aug 2008 12:33:21 -0700
> From: Ernest Montague <afm199 at earthlink.net>
> Subject: Re: Breaking-up/sputtering under load
>
> 
> check fuel ( look at plugs for bone white) and also check primary coil 
> connections.
>
> On Aug 21, 2008, at 9:26 AM, Wayne Beaver wrote:
> 
> > Did a track day at NJMP/Thunderbolt yesterday, which was great fun 
> > until the
> > bike started acting up (which, unfortuantely, was mid-way through 
> > second session).
> >
> > The bike feels like it's missing in various parts of the RPM range, 
> > which
> > changes slightly depending on which gear the bike is in. It often 
> > misses between
> > 5 and 6k, then again between 8 and 9k. Won't climb above 7k in top 
> > gear. Seems
> > to run fine at idle and through rev range when parked. Only slight 
> > blip between
> > 5-6k in first gear.
> >
> > Has something similar happened before to anyone here? Any ideas where 
> > I should start?


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