2011 ec250 isde engine noise

[m80j]

Hello I'm new here and new to the gasgas brand. I bought a 2011 ec250 six days bike back in the summer of 22. It ran good but the last guy wired the ignition through the headlight. So break the light and the bike dies lol. I've been riding 20 years and have never seen that. So I took it to a shop to have it wired properly. So we got a new harness for the lights and the ignition wiring was good. CDI coil and stator all work. The bike still runs good but it came out of the shop with like a whiring noise. It sounds like a turbo spooling. I've always rode smokers and have never heard this before. The shop of course can't hear it so no help there. the noise seems to be from the water pump area. They had the stator off the bike but the noise is from the other side. Doesn't matter in gear, clutched , in neutral all the same sound. A can't upload a vid of the sound or I would. Looking for any thoughts before I ride it and shred the motor. This motor has 39hrs on it. https://youtube.com/shorts/tuW6EpDHpUI?feature=share

Got the vid on here.

[swazi_matt]

I would say possibly water pump impellor rubbing on the housing or is it the exhaust o-rings worn out?

A good way to locate it is to use a long screwdriver as a doctors stethoscope, put one end against your ear and move the other around the engine to locate the source of the sound
https://www.youtube.com/watch?v=U927cYhQXB4

[Zman]

I agree with Swazi Matt.

That being said, the noise does not sound horrible and I think at least a couple of our 8 GG bikes make a similar noise.

[m80j]

Thanks for the speedy replies. I dumped the oil last night and it was mostly aluminium. There is a major rub on the clutch cover. So I put a bucket over the clutch and started the bike. Noise was gone. Put the cover back on and filled it and the noise is back. So it's just the outer edge of the basket rubbing I think. I'll flush it tonight, grind some of the cover away and try again. I'll post up some pics also.

[m80j]

I took the cover off again today. I took .040 off the outer edge where the rub was. Put it all back together and no more rub. But the noise is still there. Hopefully the cover was the source of the metal in the oil.

[(F5)]

How's the bearing in basket? Does basket wobble much? Might be moving when running hitting the aftermarket cover. But weird.