RE: DL-50 engine
Well my buddy helped me get my DLE-55 going today . It has awesome pull from the get go . I could tell it was breaking in cause the idle was getting smoother as time went by at lower RPM's . I'm lovin gas motors already . Everytime I let it cool down it took only 2-3 flips and it was going . Hopefully the winds aren't gusting over 20MPH 2morrow so I can take'er up .
My friend also told me of the diaphram issue . He said on the yak the turbulance of air inside the cowl of the Yak54 will make the engine sputer on a roll if you try to keep a constant speed . Said he fixed it with a nipple hooked up to the diaphram and a line running from that to a nipple on a film container which sat in the fuse. . It gets enough air to operate properly with out getting disturbed by any outside BAD influences .