I got a buddy for my 1984, I figured a 1986 yz490 could keep it company. This one has retarded compression...go figure the kick start springs are shot...and it kicks back like a mule...Notice the "Seize King" stickers haha!. Anyway just thought I would share. I will start tearing into them this weekend, although it will be a slow process. Here are some pictures of it. It also has a rear disc conversion. Is anyone part of the YZ490 yahoo group...I have been waiting for my membership approval and its been 2 weeks whats the deal with that?