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bike was on it's side. now the radiator is making a new noise... (lemmy.sdf.org)

submitted 2 weeks ago* (last edited 2 weeks ago) by [email protected] to c/[email protected]

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I was inside for a couple hours so I don't know when or how it fell. But when I came out it was on its side. It runs fine but when I'm at about 6000rpm the radiator is making a different noise then before. I'm new to this and paranoid somethings wrong.

Any advice appreciated, thanks in advance

Edit: the bike is a klx 300. Liquid cooled so I'm thinking maybe the coolant leaked out?

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[–] [email protected] 11 points 2 weeks ago (1 children)

First, check your oil and coolant levels. Only when you're sure it's not going to damage itself further by running without fluids, run it in neutral and Rev it up to the engine speed that make it make funny noises and try to isolate what's making noise.

I don't think your radiator is making noise. If the noise is coming from the radiator, it's the fan. Otherwise, I would suspect that something in the engines top end isn't being lubricated properly (if I'm imagining the right kind of noise).

[–] [email protected] 2 points 2 weeks ago

Seconded, it's probably the fan. You can be sure, after checking oil and coolant of course, if it makes the same noise when cold at 6000 rpm (obv. don't do this for long, just enough to confirm whether or not it's RPM-related), then if first scenario didn't give the right indication, check if the bike makes said noise when the fan just kicks on.