Apr 9, 2009 · The difference between the '09 450 and 450R is: Fuel injection compression ratio from 11.4 to 11.6 in 450R Digital ignition in 450R Wave style disk in rear of 450R Adjustable handlebars in …

Apr 8, 2006 · Due to the difficult time I had diagnosing an electrical problem on my machine, I spent a tremendous amount of time reviewing the electrical schematic in the manual. However, it uses …

Jul 3, 2009 · I was just wondering what the best quad for me would be, the YFZ 450 or the Raptor 700r, I like to trail ride and hillclimb. I also like to hit jumps every once and awhile too. Im just not sure what …

Jul 18, 2005 · i am getting ready to make my first oil change on my yfz. doyou just have to add oil to the oil tank or do you have to add transmission oil for the transmission. if you what oil do you use for …

Apr 10, 2021 · Hello i am new to the forum and could use a little help tuning my tps in. My tps was running at 5.5 initially but when i set it at .680-.7 my tps is pretty close to maxxed out one way on the …

Jun 13, 2012 · Let's keep this a no-bull knowledge base for the various cams available for use in the YFZ450 and other compatible 5-valve Yamaha 450-class engines. If information posted by anyone is …

Aug 28, 2014 · I have a 2007 yfz450 with a gytr slip on pipe and running the airbox lid off with a spectre high airflow filter. We have checked literally everything and tried everything on this bike to no prevail. …

Sep 22, 2015 · **Ultimate YFZ 450R Oil Filter List** Jump to Latest 44K views 27 replies 9 participants last post by kilroy Sep 22, 2016 kilroy Discussion starter

Nov 15, 2006 · I know some people have heard that there could be some issues with doing the cam mod on an '06/'07 yfz450 so I have put this together to help some folks out. The cam timing is the same …

Nov 16, 2013 · Thought it would be good to have a thread about what some of the more common issues on the YFZ 450R are and how to remedy them. It could be stickied later as a guide for new YFZ …