[THEFERMANATOR]

First things first, what is the model number on the engine? According to the catalogs they didn't make a 120HP in 98. If it is a late model V-4 90 degree looper then I would suggest checking the water pump first as that system uses water pressure to bypass the stats at upper RPM's. Weak impeller will make the engine run right at the redline for temp when under power. And if it was mine, I would leave the stats in it. Even down here in Floridas warm water I lost an engine from carbon build-up due to no stats. Loopers need alot of engine heat at idle in order to burn the fuel and not carbon up really bad. Figure out exactly what engine you have first, and then make sure the cooling system is working like it is supposed to. It could just be some salt build up on the stats that isn't letting them pop off there seats under pressure causing it.