When I first start it, I prime the carb by holding finger over exhaust and spining engine over. It takes a little bit longer to get there then when it was new, just figured it was the addition of the filter. Took apart the filter yesterday, and nothing plugging screen. Took the HSN holder off so could check fuel intake nipple-clean.

I just thought of something thou. When I was checking for air leaks in engine with the throttle wide open I had problem pushing air past LSN. I had to open the LSN all the way up to blow into engine. Would this have been normal?