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Here's the problem:
-'85 en 454 ltd overheats progressively over 5-10 miles; too hot to ride further (heat gauge just keeps going from cool to blazing every single time I ride and I don't know what to fix).
Here's what I checked:
-the water pump, coolant circulation/leaks, radiator, fan, thermostat,
Every component of the cooling system worked fine. The overheating happens whether or the weather is hot or cold.
What else can I check to find out the source of the overheating?
Thank you anybody who could help with this.
2006-12-28 07:14:44 · 4 answers · asked by thor 2 in Cars & Transportation ➔ Motorcycles
Does the fan turn on when the bike is over heating? I know you said you checked it. If not, could be the thermostatic switch (fan switch).
Or like someone else said, maybe the gauge is giving a false reading. Could be a bad gauge or temperature sensor. The best way to check if the coolant is actually overheating - put a coolant thermometer in the radiator cap while the bike is running (can get at any auto parts store).
2006-12-28 11:13:02 · answer #1 · answered by guardrailjim 7 · 2⤊ 0⤋
You said you have checked the components of the system, so, I have to believe you have done it correctly.
Next, is it actually overheating (does it boil over), could it be the gauge is just F--ked up and giving you a false reading?
Other causes of overheating could be: carbs way out of synch causing one cylinder to do alot more work. Its an 85 so I'm sure it has electronic ignition but it may have a mechanical advance mechanism that could be frozen causing the timing to be running retarded which will cause it to run hot. Is there any chance that the exhaust system could be plugged up? Are the brakes dragging? When you fill the system are you filling the radiator or are you just filling the purge tank? Does the system have a bleed screw to purge air from the system?
Hope you find the problem.
2006-12-28 16:35:18 · answer #2 · answered by Anonymous · 1⤊ 0⤋
the water jackets that line the cylinders could have partially closed up from sediment buildup.
2006-12-28 19:07:25 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Make sure you have enough oil in the sump.
Its a long shot but might work
2006-12-28 15:23:51 · answer #4 · answered by fizz 3 · 1⤊ 1⤋