Saw Dr.
Junk Collector
038 Mag will pull 25" just fine. I have run a 25" on a decent 038 Super before, and it did okay. Watch out for cracked tank/handles on those. They're not terribly easy to find these days. My understanding is that only the western versions of the 038 MAG had the 3 port muffler. None of the ones around here have it. (except mine...) Also, have a look at the upper LH A/V mount, as I have seen plenty of those torn. If the oiler leaks, it can probably be rebuilt. I did one a while back and it didn't leak a drop after. Sure could pump it on to the bar though.
