I have owned the bl150 for 3 or 4 years now and other than forgetting the choke goes the other way to choke it, no problems at all and it does eat through some thick stuff. I normally hit the primer bulb till I feel resistance about 4 pumps pull the trigger and pull it 2 to 4 times then put it on half choke pull the trigger and pull it once or twice and it starts then I let it run about a minute or so then move it to no choke. I do find that the trigger is hard to reach so I set the idle high and do most trimming and edging without touching the throttle unless I hit some really tough stuff. I use it all the time and really give it a workout and so far it has been a great trimmer. I would say you need to dump or use all gas in any engine before putting it up for the season so it will not gum up.
coaster, July 2010