Exup Valve

[JoeRock]

I've not noticed anything odd with the bike since I bought it, but kinda want to check to make sure the valve is moving.
I've unfortunately not got my Haynes manual with me so can't check how to do this, but it is basically a undo the cover (looks to be 3 normal bolts), take it off, turn the bike on and rev it a bit, and make sure the valve is moving when the bike revs? Out of interest, on the other side of the exhaust pipe there are two small allan key bolts, what exactly do they hold to?
I imagine this would be much easier with my manual 

[Falcon 269]

If you have web access, you can get to Pat's Site, which is more helpful than Haynes on many things

http://www.cartestsoftware.com/fz1/exupmaintenance.html

You can check EXUP movement by removing the cover and watching the pulley move.  Also check adjustment by rotating the pulley fully clockwise (ignition OFF) and then turning the ignition on.  Pulley should return to the parked position with fork on the pulley aligned with the hole in the end plate.

The 2 allen bolts on the far side hold the plate which covers the EXUP bush on that side.  That's all.

[fireblake]

Sorry to jump in on this but I'm having problems too. I've adjusted my cables several times from too tight to too loose and I'm still getting the 7k fault, I've had the valve out to lube it up and the valve does rotate freely with my fingers but it won't do it with the cables, I've even blipped the throttle so it revs past 7k and not even any movement  from the servo, not even a twitch. Is there a fuse for it or anyway I can check if the servo works?


Thanks,  Mickey

[sadlonelygit]

to check the servo, disconnect the cables from the valve, check that the cables aren't seized, then turn on the ignition. under the tank you will (hopefully) hear a 'ZZzzz ZZzzz'. that will be the servo doing a diagnostic set up. the servo is designed to 'trip out' before it burns out hence the 7K reading.
there is a proper check to do but generally you can hear it.
i have a spare servo and cables if yours are fubar.

[fireblake]

I'm not getting the servo noise, or any movement, it was making the zzzz noise yesterday but still giving the fault so I assumed the valve was sticking, I then lubed the cables as best I could using a cable luber and spraying from the bottom. The cables when loosened right off would push and pull freely but even then no zzzz from servo. Then after assembling and adjusting up and after warming up and the blipping to 7k, nothing.
I've just disconnected the battery to see if that resets anything but still the code is there?


Stressed,    Mickey

[JoeRock]

Checked mine today and it was fine, the three bolts came off nice and easy, there was the specified play in the cables, and when I moved the y shaped metal bit and turned the ignition on, it came back and lined up with the hole perfectly. Copper greased the bolts and popped them back in, job's a goodun.
Whilst I'm down there though, does anyone know the size bolts I'd need to replace them with stainless? Not an issue at the moment, but better prevention than cure I think!

[ullukk]

Checked mine yesterday, totally shafted!! couldn't even get the pulley wheel off and noticed the 3 5mm allen bolts are butchered to death, I'm not the most mechanically minded bloke in the world but i'm determined to get exup sorted one way or another, i'm half thinking of binning the original downpipes and fitting the sandy bike parts 4 into 1 non exup valve downpipes, any recommendations or advice on the non exup option would be greatly appreciated.


Thanks in advance.


Keith.

[cooluncle]

I finally binned the valve on my 2004 plate bike ( after many attemps to fix it), kept the original down pipes, got the carbs re-jetted and put onto a rolling road, it was dyno'd at 132.9 hp. It's lost a wee bit mid-range, but not that you'd notice..
That was over a year ago now and no problems at all..
 
 

[andy m]

Hi,I was in the same boat the other week.manage to get the housing off but the exup valve is totally butchered.I have taken it to a local engineer to try and straighten it, but in the meantime it is blanked off.it seems to run okay but not had a good run to give a positive comment(too f****n cold).apparently they don't run too good without it in.