ORIGINAL: av8tor1977
Virtually every engine I convert for my own use gets a Frank Bowman ring. The ones I sell only get a new ring if the old one is worn. But I splurge on mine because the $11.00 cost doesn't bother me to make it perfect.
Zagnut: Have you ever converted one of those little Kawasaki 22cc engines? As you say, they are cute. I have one that I partially converted and then had to set aside because I was busy with other projects. Looks to have decent size ports though I haven't checked the port timings on mine yet. I think it will make a neat conversion and was just wondering if you had any performance numbers for them. They are very rare here. In the past few years my brother and I have literally gone through hundreds of engines we bought and I only found this one Kawasaki 22cc.
AV8TOR
nope, not done one yet but as i'm getting back into the larger planes i will get to it. one thing for sure is that it will be LIGHT, just the cylinder weighs substantially less than all the other little ones, probably come out under 25 ounces... cases are kinda weird in that they have one ball bearing and one needle bearing. both of mine were on pro hedge trimmers and came with really nice slide carbs that have a 10mm or so venturi so i'm betting they were designed to make a bit more power than the standard homeowner junk. frank bowman lists rings for this engine as well...
for the husky i want to see if he has a ring that fits or is willing to work from my measurements, need some anyways for an old webra and a mccoy .60