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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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  #211  
Old 06-30-2019, 01:19 AM
motopsycho87 motopsycho87 is offline
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I'm guessing they cut it to allow it to open a little further?

I took mine out and ground it to suit the port a couple years ago.

My symptoms were a flat spot down the bottom, like the bike was incredibly lean, but then recovered as the power valve opened. I only really noticed it as I picked up an old exc200, and the bottom end blew me away, so I knew something was wrong. The KTM was set to open mega early, so I knew I needed to get the gasgas to open earlier, and damn did it make a difference.

Bare in mind I'm running 1.5mm base gasket to align the ports, so anything to recover the bottom end is a good thing!


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2006 EC300 Enduro - Ignitech CDI - 42/162 NECJ#1, DEP spanny, FMF power core, .46 front 5.4 rear

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  #212  
Old 06-30-2019, 02:20 AM
adriano.ro adriano.ro is offline
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I really don't know what to do next.
All is place,nice,clean but no matter what I do,power valve won't open fully.

This is the end of travel...

If I lose a bit the preload on pv will go just a little bit higher on revs but will go too abrupt in power valve.

Soooooo, what I'm thinking to do next, I will loose all spring preload ,if I do that ,the actuator will be loose too much, but,I will bend the actiator arm,to compensates the freeplay.

Fingers crossed
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Last edited by adriano.ro; 06-30-2019 at 03:34 AM.
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  #213  
Old 07-01-2019, 11:51 PM
adriano.ro adriano.ro is offline
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Update: nothing change...
repack final
Clean pv
Clean air filter.

....

#G needle maby?
I feel that the pv need to open earlier.

Is frustrating to not have some basic measurements,like ktm, 'X' dimension for example.

Last edited by adriano.ro; 07-02-2019 at 01:17 AM.
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  #214  
Old 09-01-2019, 03:43 PM
cangy cangy is offline
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Default My contribution to this awesome Powervalve thread.

I've just sorted my Powervalve issue out, and it's an new issue to the thread I think.

If you've ever had the governor apart, you will have spotted a little aluminium rings that slides up and down the main shaft. Mine had "picked up" and was intermittently sticking it got to the stage where it was hardly moving at all.

I put it down to bad maintenance, not changing the gearbox oil regular. Anyhow, I don't know if they are available for an 03 EC 300, but I polished the marks out and it works a treat now
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  #215  
Old 09-02-2019, 06:53 AM
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Zman Zman is offline
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I was able to put a 2011 PV governor into my 2000 300GG. There are several on Ebay, but it sounds like you fixed the problem.
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