My NSR125 Powervalve wont open Correctly....... Help

[IcemanNSR]

My NSR is the 2001 Model, with the Electric Style Powervalve, i'm told that the valve isnt opening and therefore is "fouling" the Sparkplug...? effectively flooding the bike, Does anyone have any advice?? Plz Plz Plz!!

Thanks [/list]
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Iceman

[Avora]

You'll know if the powervalve works or not. Have you got power before around 8k? If you do, it probably works, in which case it'll be a carb issue. If your valve isn't working, then I'd suggest you get someone to strip it down and you may need some new parts for it. Not sure if it should 'foul' a plug, just because the PV isnt opening though.
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Kawasaki AR125 B8 - Getting ready for a summer time soon!

[IcemanNSR]

hey, Thnx. the issue started when i was riding the bike, only when the revs went up around 8K, then the bike seemed to have run out of fuel, it would then not start even tho it had plenty of fuel. The sparkplug was wet, after cleaning the plug, it started again, and would run, but only when kept below 8k hence the thoughts about the Power Valve. is it easy to get this problem fixed?? and would a new valve sort the issue out??
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Iceman

[Avora]

This is nothing to do with the PV...that simply optimises the power. All it does is vary the size of the exhaust port. If its running crap, it'll be a carb issue. But first port of call would be get a new spark plug. And get two, and carry one with you. Once youve got new plug in, you need to do some plug chops. As in run it till its warm! Then take it some where you can go full out 1st, 2nd and 3rd, then with the throttle open shut off the bike, take the plug out and check the colour. It could yet be an ignition thing...but do the plug tests first.
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Kawasaki AR125 B8 - Getting ready for a summer time soon!

[skatefreak]

I have had my battery crap out on me in the past and with the powervalve closed, anything over 8,000 rpm is a pain in the arse.

The theory is its supposed to optimise the running of the engine by increasing the exhaust port but the truth is without it, over 8,000rpm it will run like a sack of potates.

That being said, it should not be cutting out so i would say it sounds like yr power valve isnt running and the bike itself isnt running to well and thus cutting out over 8k.

Is it resptricted, if not, what jets are in the carb?

Suggestions, clean out the air filter, get the carb out, give it a clean, not the carb jets and report back with the jet numbers

Best regards

-Jvr