cmharcou
Expert
I finally got my Attak serviced and completed. I drained all the coolant and added new coolant in it. Apparently someone had put some oil by accident into the coolant. Well that oil does not mix with the antifreeze and always floats and stays on top of the coolant, therefore making it look like that is whats in the sled. But all the coolant in the motor looked just fine. So I drained it all and refilled it up to find just a tad more floating on top. I took a syringe removed it from the top of the coolant and repeated this process about 10 times. I finally got it all out. I am glad that oil floats and didn't sink!
Yamahammer485
TY 4 Stroke Guru
cmharcou said:I finally got my Attak serviced and completed. I drained all the coolant and added new coolant in it. Apparently someone had put some oil by accident into the coolant. Well that oil does not mix with the antifreeze and always floats and stays on top of the coolant, therefore making it look like that is whats in the sled. But all the coolant in the motor looked just fine. So I drained it all and refilled it up to find just a tad more floating on top. I took a syringe removed it from the top of the coolant and repeated this process about 10 times. I finally got it all out. I am glad that oil floats and didn't sink!
I didnt know it was just in the resevoir. I have some of this too and assume its normal, no one ever really confirmed it.
the last owner forgot it was a 4-stroke and not a 2-smoke and added some oil.whoops!cmharcou said:I finally got my Attak serviced and completed. I drained all the coolant and added new coolant in it. Apparently someone had put some oil by accident into the coolant. Well that oil does not mix with the antifreeze and always floats and stays on top of the coolant, therefore making it look like that is whats in the sled. But all the coolant in the motor looked just fine. So I drained it all and refilled it up to find just a tad more floating on top. I took a syringe removed it from the top of the coolant and repeated this process about 10 times. I finally got it all out. I am glad that oil floats and didn't sink!

cmharcou
Expert
Was re reading through my old posts. Sounds like I'll be putting a new head gasket in very soon. Whats the best replacement head gasket?
rxrider
Jan-Ove Pedersen
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Stock Yamaha all steel gasket, the new type without the silicon coating.
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