Seized Exup

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pearson*
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Seized Exup

Post by pearson* »

Hi,

I've recently had my carbs tuned and now my exup has unfortunately seized shut by the sounds of it. Will driving the bike affect the carbs at all in its current state or will it need re-tuning after sorting the exup valve if it's ridden.

Problem is, im in Birmingham at the moment and everything i need to sort it is back in Nottingham, so im just trying to figure whether i need to get a garage to sort it before i go back or wether it will cope

Thanks guys.
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CMSMJ1
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Re: Seized Exup

Post by CMSMJ1 »

Can you not take the exup out?
IMPERATOR REX ANGLORUM

The V4 is the law..

NC30 - No9 - my old mate
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thunderace
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Re: Seized Exup

Post by thunderace »

I ran my FZR600 with a blocked EXUP for months before I got around to sorting it out. Lost a bit of mid range torque but no real ill effects. I wouldn't worry about it till you have the time.
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
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Evilchicken0
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Re: Seized Exup

Post by Evilchicken0 »

Can you disconect the cables from the exup pulley - try that if the exup moves then it's the cables seized.
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levo
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Re: Seized Exup

Post by levo »

thunderace wrote:I ran my FZR600 with a blocked EXUP for months before I got around to sorting it out. Lost a bit of mid range torque but no real ill effects. I wouldn't worry about it till you have the time.
Which fzr 600 was that??

ISTR 600's didn't have a exup at all.

Danny
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rockTJ
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Re: Seized Exup

Post by rockTJ »

All of the 4JH FZR600R's had exup valves, the foxeye model. I think they were called YZF600 in america.

Just a question: Do 4JH or Thundercat headers/manifolds fit the 3TJ???

Chris
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thunderace
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Re: Seized Exup

Post by thunderace »

rockTJ wrote:All of the 4JH FZR600R's had exup valves, the foxeye model. I think they were called YZF600 in america.

Just a question: Do 4JH or Thundercat headers/manifolds fit the 3TJ???

Chris
Yes it was the Foxeye.

Yes they'll fit but they sit differently. Best search on here, I'm sure it's been discussed loads of times.
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
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Evilchicken0
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Re: Seized Exup

Post by Evilchicken0 »

I didn't think the foxeye had an exup - I thought it was a standard FZR in California.

The 600 pipes fit because the cylider spacing is the same as the 400 but they hang lower and melt the bodywork
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