I have an old CoMo .50 that I have never run in the several years that I have owned it but I want to get it running now. My question is for all you old CoMo and Super Tigre fans: where do I start with the needle valves? I assume the one on the exhaust side that looks like an actual needle valve is a low speed valve and the one on the intake side is the actual high speed valve. From lightly seated, where would I start with these valves to get it running?