ts3232 Posted August 27, 2009 Report Share Posted August 27, 2009 I am going head to head with a buddy that has a YFZ 450 next weekend but I have a question. His pipe turns bright red right as it comes out of the engine. And I am talking Red. The dam thing looks like it is about to explode. What could have he had done so that it turns that way. I think either his fuel mixture is to rich or his timing is advanced to much. Any have any info on this. My bike is a banshee cheetah cub with a 4 mil, hemi head 20 cc domes and 34pjs on 50/50 VP MS109/91 pump. Quote Link to comment Share on other sites More sharing options...
yfzdunejumper Posted August 27, 2009 Report Share Posted August 27, 2009 Stock head pipes do that. Quote Link to comment Share on other sites More sharing options...
ts3232 Posted August 27, 2009 Author Report Share Posted August 27, 2009 So are you saying that it is normal for the YFZ to do that with no mods. If that is the case I should be able to smoke him. Quote Link to comment Share on other sites More sharing options...
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