I have a 99 suzuki dt 200 with frozen exhaust gasket bolts. The motor only has 350 hours on it so starting over isnt an option. Some are loose others feel frozen. 36 total to be exact. If anyone has any experience with penetrating oil I'm looking for advice. I'm in no rush and thought if i start spraying the oil now now maybe in another month or so the oil will have done its job. There is room for it to penetrate between the exhaust cover and head since the gasket itself is showing signs of age from the outside. Ultimately I will take it to a mechanic if I even feel like I'm going to snap any off. He said he would have to pull the head and drill them out for a total cost around $700. I have also heard of a product called freeze off which you spray on the bolt and through contraction frees it up.. any try it? Heating it up really isnt an option since the motor pan is plastic and I'm not a big fan of it because of the aluminum head.