Ktm 300 xcw leak down test
I'm having some issues with blurbleing and missing at 1/8-1/4 throttle on my 18 xcw with a 6 hours top end .
I've tried jetting, cleaning, installed 2 diff carbs with the same issues so I ran a leakdown test with 5 psi and found that there was a big air leak at the power valve on both sides I had recently cleaned & replaced the power valve orings with aftermarket ones .
I thought I might have did something wrong or an o ring got pinched etc but everything was correct and the orings were in the right places.
I decided to change the o rings again anyways and there is still a large air leak at the pv o rings. The power valve etc has about 40 hours on it so shouldn't be worn out. I am not %100 sure if this is normal and I need to look elsewhere or what. I have checked the stator and coil and they tested good Any other ideas ?
Update... I may have fixed the issue I installed another set of o rings in the power valve and the pressure test passed with no bubbling at the pv everything was installed correctly but they must have been crappy orings . Got them with a namura kit ( yes I know) , I installed cheaper orings and they seem to have sealed the power valve lol will update if it fixes the issues.