My Husqvarna 340 chain saw is several years old. It's very hard to start when cold, but once I do get it running, it starts easily with one pull. It's been that way since it was new. I noticed recently when I was in Lowes where there are some Husky chain saws on display, that the new ones have a small primer bulb (small hemisphere) like what is on Stilhl and RedMax 2-cycle products I bought in the last year. Is it possible to get a primer-bulb kit from Husquvarna to upgrade the saw I have? If so, any suggestions about the procedure to do that?