i've been running both the last 2 weeks. Great engines. Smoke worked great. Whistle, stacks and blowdown. yesterday I reloaded smoke fluid per directions for the stacks on both. Initially they performed great, but after a few loops, the smoke became very anemic and even stopped puffing at very slow speed. I blew down the stacks to address the miniscud issue but still, nothing. The units are hot and air is expelled but little to no smoke. Did I goof or should I seek professional help?
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