Slowly loads up and dies mean it doesn't increase RPM it slowly drops..2000-1900-1800-1700-1600-1500 and stops

Most YS motors will run considerably rich on the low end before they die....When they are not throttling up in flight or give a surge as they throttle up in flight(you can hear it)....Then they are lean....Mostly when you have idle problems its lean not rich.....When on the rich side they have a pretty wide range of how rich is too rich...Once you pass into the lean side of the perfect setup they become very temper mental....I would recommend if a person is have trouble at idle...90% of the time its too lean....


This is not the DZ but anything on the YS production line other than the DZ....

The DZ is a slightly different beastie!

TN