i just bought a 88 blaster for my girlfriend,carb is clean,but after it warms up it wont idle down just stays at very high rpm.slide moves free,does not have tors but did this before i removed the tors also.please help im am lost on this,no leaks aronud carb or head gasket,sprayed carb clean around then and did nothing.it also does not idle,acts as if it cuts out then comes back on at idle rpm.also after i run it the oil level seems to drop,y is this?keep filling it and it keeps dropping