Hey, I'm new too, just got a wr250x w/dirt tires. I've gone up to eagle mountain in Coquitlam a few times. Seems like there are tons of awesome trails up there
Most of the actual trails up on Eagle are being built/maintained by the mountainbike community, strongly suggest you don't ride them on a moto unless you are sure they are moto-friendly. Guaranteed to stir up a hornet's nest if the mtb crowd catches a moto on "their*" trails. The FSR's of course are fine, but the only one that's really beginner-friendly is the ride up to the lookout over Buntzen Lake. The Cypress Lake FSR is a pretty hard climb, though it certainly can be ridden.
*yes, yes, I'm very familiar with the long history of this area and know better than many on this board that these are mostly ex moto trials lines, and skidder trails before that. Point is, they were largely abandoned by the moto guys 20 years ago and largely adopted and maintained by the MTB guys since then (FWIW, I play in both camps) and there's little point in picking a fight over it.