Re: fuel pump
As I posted before, you probably have to use two pump's, along with all the plumbing, or fitting's required. If you are worried about smoking this engine, you are well on your way if you don't do this correctly. Keep in mind, this engine requires a 3/8 feed line. Install the new up-dated pump. Install it, check flow, and oil consumpion as outlined in the manual, and you will be a lot better offl. Don't second guess here.