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High Idle RPM - 503DCDI

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T

Tuneturkey

Well-Known Member
Joined
Dec 29, 2018
Messages
128
Location
10113, Hyde Park Ct., Baton Rouge, LA 70816
Engine idle after 4 hours of run-in, runs 2,300-2,500 RPM no mater where the slides are set. can't get it down to 2000. In addition, if running at 4000 and pull back the throttle to idle, the RPM drops below 2000, the engine vibrates and shales as it dies. The idle jets, needle jet, main jets are all per ROTAX chart for dual carb 503. Engine has not run long enough or hard enough to have dirt issues. fuel is filtered and fresh.
Any comments are welcome
 
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