Ah, okay. Sorry for the misunderstanding. It looks like someone either replaced the line or cut the old one and put a hose clamp on instead. This should be okay in general, i have done something similar to install an external cooler. It could be that clamp just needs to be tightened, or the rubber is cracked... if that's the case i suggest replacing the line. You could probably get some more hose and patch it up, but with something so vital, and flammable, i think its best to be safe.

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