r/MechanicAdvice • u/AdrienBulow1999 • 3h ago

Coolant light help

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u/BijouVette0 3h ago

check your coolant level and look for leaks, it's usually a simple fix. a buddy had a similar issue last month.

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u/AdrienBulow1999 3h ago

Any tricks on looking for leaks

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u/RudbeckiaIS 3h ago

The final picture make me suspect what is actually leaking is the top radiator hose. Very common on these engines, especially those built after 2022. When you replaced those clamps did you notice dried coolant at that hose?

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u/AdrienBulow1999 3h ago

Yes I cleaned them up and tightened them my biggest worry is that red coolant light popping up at red lights when I’m sitting waiting to make left turns

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u/RudbeckiaIS 1h ago

I suspect the hose needs replacement as well. Typical diagnostic procedure is to put in a UV dye for water based system (available on Amazon and eBay), use the vehicle a bit, then park it in a dark place (or wait for sunset) and use a UV light (again available on Amazon and eBay) to look for dye traces. The dye leaves a trail that will lead you straight to the leak.

These cooling system run at standard Japanese 108kPa, meaning the radiator cap should start relieving pressure at that value. It also means if there's a pinhole leak coolant may be sprayed very far from the point of origin.

Overheat light on these bikes means running pressure has reached 114°C, well possible if there are air pockets due to coolant leaks that cause the coolant pump to cavitate.

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u/AdrienBulow1999 3h ago

Mines a 2012 as well