Question about 2000 Yamaha YZF-R6
I am having a problem with my cooling system for a 2001 Yamaha R6. My coolant reservoir is filling up and then leaking out the reservoir overflow tube. I checked the radiator cap and it is on tight. When opening up the the cap I noticed a lot of coolant is sitting on top in the radiator itself. Which makes sense because I am seeing the reservoir fill up fast because all the coolant in the radiator is going to the top. Don't know what the issue is though...
Most likely a blown head gasket. Exhaust gas is blowing past the gasket and into the cooling system. It will pressurise the cooling system and push the coolant into overflow bottle. You might notice that after riding the bike for a while and then leaving it to stand for a few minutes, it will push coolant back into the cylinder and you will get a big puff of steam out exhaust when you start it.
Best way to check is to do a compression test. Need to remove spark plugs and and screw a compression tester into the hole. Crank the starter and you will see the gauge go up in 3 or 4 strokes. Should be about 224 psi for a new stock motor. Repeat test for remaining 3 cylinders. Pressure should be 90% of that figure (201) and should not be more than 10% different from highest to lowest. Probably find one cylinder is really low.
Posted on Sep 11, 2014
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Posted on Jan 02, 2017
The older YZF's radiators were a tad small so they would overheat when sitting still. Even the newer ones will do this if sitting still for too long as there is no air flow across the radiators to dissapate the heat.
The overheating problem is more severe on the older bikes. The best bet is to make sure you avoid sitting still for too long. I know it's not much of a solution, but it's just the way it is with the older YZFs.
Posted on Feb 15, 2010
SOURCE: i need to change the
Never Remove the Radiator Cap when the Bike is Hot! It will spray Hot Liquid all over you! --- Drain the coolant from the radiator by removing the drain bolt on the water pump (right side engine, where the radiator hose goes to). You then have to drain the coolant reservoir by either A) take off the coolant reservoir to drain it or B) use a suction pump to **** the remaining coolant from the reservoir. It is located near your master cylinder reservoir, small plastic tank with a rubber cap and tube. --- Fill your radiator by removing a lock bolt for the pressure cap and then filling it to the neck with your coolant of choice. Fill the coolant reservoir to the line marked on the back of the tank. Take the bike for a ride and get it up to operating temp, park it and wait until it cools. Check the level of coolant in your reservoir and add/remove as necessary. ---------- Click this link below for more details:--- http://howtobyme.blogspot.com/2011/07/how-to-fill-radiator-coolant-on-yamaha.html --------- This will help.Thanks.helpmech.
Posted on Jul 26, 2011
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