Thanks. First I am going to change the crank seals. I have got one out and it is cracked in about a dozen places on the circumference lip. I am now making a worm gear puller to get at the other seal.The impulse grommet/tube is a common issue on these. You have to remove the plastic intake to check. Inspect the rubber intake band also. I usually use a little dirko to seal the band. Both are available through husq.