yamaha 1983 RZ350

Hello all,



i live in australia , i have just rebuilt, restored a yamaha 1983 RZ 350 and having issues with overheating, within 15 minutes its literally boiling and spewing it out the expansion bottle, i have remove thermostat completely and still over heating, replaced radiator cap, replaced coolant , proper procedure for refilling coolant and bleeding any air out of the cooling system could be helpfull



any advice would be much appreciated, i have heard of adding a external fan, or a bigger radiator



RZ350 /RD350 Radiator Cooling Fan Kit.


or would i be better off with a bigger after market radiator.

Can anyone suggest on this?

Please help.

Thanks!



I didn't find the right solution from the Internet.



References:
 www.2strokeworld.com/forum/index.php?topic=23497.0

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