<div>I'm losing sleep trying to determine whether to put a YS in the Integral I ordered or if I should stick to the OS140.</div> <div> </div> <div>The last time I ran YS was 8 years ago. I got frustrated with the various maintenance, gaskets, diaphrams, rings, bearings, falme outs and header failures that seemed to be a natural part of the YS experience. I switched to OS and never had a reliability problem again.</div> <div> </div> <div>However, I flew a 160 powered aircraft recently and imediately noticed the difference in speed control, torque etc that makes the YS the easier engine to fly the sequences.</div> <div> </div> <div>What's the typical maintenece on a modern YS?</div> <div> </div> <div>Flights per plug, flights between valve adjustment, pump adjustments/replacements, bearings, gaskets etc.</div> <div> </div> <div>And what's the cost of the 170?</div> <div> </div> <div>Any advice will be welcomed.</div>
<div> </div> <div>Colin</div><p> 
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