superfastyfz450driver Posted March 21, 2015 Report Share Posted March 21, 2015 Hi guys. I have a quick question. Has anyone just blocked off the small bypass line on the top of the intake side of the cylinder head where it goes to the top of the rad. The reason I am asking is the hybrid yfz I am building. I do not have a port on the rad for it. I can easily weld one in place but if it is not needed I'd rather plug the top of the head Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted March 21, 2015 Report Share Posted March 21, 2015 helps bleed the system, id leave it in there. or yall get an air pocket. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 21, 2015 Report Share Posted March 21, 2015 I've always left it due to the air pocket theory. I'll bet there's a few drag guys who have it blocked though. Quote Link to comment Share on other sites More sharing options...
superfastyfz450driver Posted March 22, 2015 Author Report Share Posted March 22, 2015 Just welded a bung in my radiators so that I can connect a hose from the rad to the highest point on my radiator set up just like the oem Quote Link to comment Share on other sites More sharing options...
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