Because there are so many 1.70's out there in the world, it makes sense to offer a kit so people don't have to buy an entirely new motor.

Keith, I will try your method of priming the engine, I have always just spun it over. It takes about 10 seconds to do and has worked well, but it sounds as your priming method is more predictable.

I can also vouch for Ed on here, his regulators are awesome! Ed made me one, and it's very high quality, and very light. Ed also knows his stuff when it comes to electronics and that was something else that made me feel a lot more comfortable with my decision to buy his product. Ed called me and I spent about 30 minutes or more on the phone with him before I got my regulator and he told me anything and everything pertinent to the regulators and how electronics work specifically for our pattern applications. I can not reccomend him highly enough, and I definitely will be a repeat customer!