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fastdruid · 23-01-10, 07:22 PM

I'm no exup expert but if its anything like the 2 stroke powervalves there is a circuit which feeds back where the servo is, if the exup is the same then if that circuit is dirty/corroded or has a bad contact it wont be able to accurately locate its position and may 'hunt'.

I'd ask a dealer at least, could be they can test the servo quickly.

Druid

23-01-10, 07:22 PM	#4
fastdruid Member Mega Poster Join Date: Jul 2003 Location: W Mids Posts: 2,037	Re: Any EXUP experts here? I'm no exup expert but if its anything like the 2 stroke powervalves there is a circuit which feeds back where the servo is, if the exup is the same then if that circuit is dirty/corroded or has a bad contact it wont be able to accurately locate its position and may 'hunt'. I'd ask a dealer at least, could be they can test the servo quickly. Druid __________________ '00 SV700S - '94 RVF400R - '97 RVF400R - '88 VFR750F