Breaking-up/sputtering under load

[Ernest Montague]

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?
>
> Thanks,
>
> Wayne Beaver
> NESBA #737
>