At the time I didn't have a muffler and didn't have the original modified yet. I have had other 2-strokers run just fine without a muffler. I didn't want to use the original muffler as it is a little heavy. I got the dimensions for a muffler from wackerengines and found it to be too big to fit in my application. This is why I ended up modifying the stock muffler. I was trying to do this conversion as low cost as possible to see how inexpensive it could be done.
I ended up buying a prop adapter and a Walbro WT-324 carb. I was given an ignition system. My total cost was $60. I didn't want to spend a lot of money if the thing wouldn't run right. I tried a Homelite conversion about 15 years ago and it was a disaster. I had to make parts for it. I used the flywheel and it shook violenly. I didn't want to repeat this again. So, not bad for a free wacker engine found in the trash.