YPVS tips

[Glynn123]

Didnt bother lubing my PV after rebuilding, ensured all surfaces were very clean and mirror polished, it doesnt do a full rotation and moves as much as say a rev counter or speedometer, the bushes would well outlast a piston un lubed, the thing you should really worry about it carbon sticking to the powervalve, so keep it clean and if you can be arsed mirror polish it.

[Irongamer727]

@glynn123 when cleaning the pv. Should you always buy new o rings or can they normally be reused? How many km until you should inspect and clean?

[Calum]

@irongamer727 Pretty sure it comes with the Athena gasket kit.

I can't say I have ever gone out my way to replace the o ring or clean the valve.

[Zrako]

@irongamer727 when Im cleaned mine , I had new seal and old seal in hand and couldnt tell the difference.

[declan]

@zrako when I rebuilt my top end my o rings were no bullshit litteraly square although my piston was about 2 years of hard riding old

[Irongamer727]

The Haynes manual says you need to make sure the pv is mounted correctly and not 180° wrong. Is it possible to mount it wrong? I mean it only fits one way?

[declan]

@irongamer727 I guess it’s in the manual for a reason but I don’t actually know

[Calum]

@irongamer727 It means ensuring it's not upside down....I'd imagine.

[Jens Eskildsen]

Yup, it seems you can fit it upside down, thus restricking the bike.
Im pretty sure some bikes where sold in a restricted version like this.

[Irongamer727]

Can you twist and turn the servo motor for the pv without risking causing damage to it? I need to do so since the current setting is not optimal.

[Calum]

@irongamer727 Your servo is fubar anyway right? So can't see what harm it would do.

[Irongamer727]

Nope have a new one

[Irongamer727]

[Irongamer727]

my question is wheather or not you could "rotate" the servo manually in order to adjust the pv better. The 2nd pulley is obviously a bit too far out.

[Calum]

Yeah isn't that how you're meant to adjust them anyway. Just use a set of spanners to adjust the locking nuts, the tension ought to pull the servo the right way. Then lock off.

I might be having a mental block, but that's how you adjust them.

[declan]

@calum think he might mean litteraly turning with your finger tips but the way you mentioned is the best way

[Calum]

@declan I think turn it from the PV housing should suffice.

[declan]

@calum yep to turn it with with your fingers would be massively overkill really

[Irongamer727]

@declan naah, you guys underestimate the force required to turn that servo. Fingertips or pull HARD at the pulley

[Irongamer727]

Do you think my servo settings are okay? It works beautifully and opens right. However I am not happy with the way it is adjusted. The 2nd pulley screw is as you can see much further out than the 1st. Have a look at the servo! No pleased with that either. Woud have wanted it more centred. But frankly that was the only way it would work. Seems okey?