Well I picked up this huge 40% yak and I needed a big engine for it. I opted for the Kroma 180 from [link=http://www.drhobbies.com/shop/]DR Hobbies[/link], I gave sales rep Todd Blose a call and in 3 days it was in my hands.

I happened to have a set of 125cc cans and headers from a DA 150 so I tried them on for size. I ended up opening up the bolt holes to the next largest size and it bolted right in. The ports were a little smaller so I opened them up a bit also. Tod recommended using 3W 200 headers, and I did buy them, but the port opening was practically the same size as the 150 so I used the 150 headers.

I installed the engine in the plane then it was time to fire it up. With the help of a couple friends to hold it back I choked it, throttle to half and 5 flips it fired off and quit. Choke off, throttle to idle, 4 flips and away it went. I figured for a new engine it would have taken a lot longer than that to get it running but all of us were surprised at how quickly and easily it started. Man what a wind storm behind this thing. I'm using a 32x10 for a breakin prop then I'll jump up from there.

We ran it only for a couple of minutes as it was getting dark and didn't have time to get to the flying field, but I was more than happy at how it started.

Plans are tomorrow to go flying, weather permitting, but I'll get more pictures, rpm numbers and perhaps a video then add onto this review.

Here's a few to start with: