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Enduro Engine 4 stroke (including EFI & Exhaust) 4 stroke engine, EFI, and exhaust discussion |
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#1
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Radiator / head gasket blown?
Hey all, hope someone can put my mind to rest.
My 07 FSR has a habit of loosing coolant. I suspect it is the head gasket. Symptoms:
I have had the thermo fan fitted as I thought the fluid was disappearing down the overflow through the radiator cap. (KTM one fitted) Questions for you fellow FSE-FSR riders:
I should probably take some video to help explain it. My back pack is getting a bit heavy now with the 1.25L of reserve fuel, 600mm of spare coolant, 2L of camelpak and tools! Any help appreciated.
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2007 FSR450 |
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Bump
Anyone got any ideas?
Anyone?
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2007 FSR450 |
#3
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Head gasket
I don't own, nor have even worked on an FSE 450, My experience w/other four strokes is that you probably do have a leaking gasket. If it is a very small leak the coolant is being burned/ consumed/ turned into steam leaving the engine. When the engine is running at idle there could be a "sweet anti-freeze" odor. Check the exhaust , determine if there is coolant residue coming thru the muffler. You could have a small amount leaking into the engine, but not enough to contaminate the oil. What is puzzling is the radiator remaining pressurized even when it is "overnite" cold. I would do a little more checking before you tear everything apart. One other wild guess, make sure the radiators are flushed and clean, no sludge in the bottom to impede water flow to the pump. Let us know what you find out. Jim
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#4
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Quote:
Quote:
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jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
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