Ok so I have 31000 miles and my bike has run great. Recently I started experiencing poor mileage like 30-35 mpg. I took the carb out and cleaned it and adjusted the valves. Ran awesome. Was looking forward to better mileage. After 10 miles the bike started to burble and to keep it running had to keep the rpms up. Once it quit it wouldnt restart. Seems like theres no compression. Checked with a gauge and no compression. After consulting the manual it says I should have the throttle wide open during a compression check. Does that matter that much? The gauge didnt even move. What should I check and how should I do that?