fbpx
Login

 

Jump to Forum..

912 ULS engine misfire/bump

in 912 / 914 Technical Questions 4 months ago

  • Re: 912 ULS engine misfire/bump

    by » 2 weeks ago

    Dont know what you mean by a "bump"

    Backfiring is usually the result of :

      Faulty ignition timing

       Build up of contaminants (eg lead from AvGas) in the combustion chamber, causing pre ignition

       Valve(s) not seating

      Can also be air entering the exhaust system, - unlikly

       

      
    Report

  • Re: 912 ULS engine misfire/bump

    by » 2 weeks ago

    You can also have these odd issues from a broken baffle inside the muffler.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
pin cramp for ignition 912 912 / 914 Technical Questions 3
Garmin sensor kit for Rotax 912/915 iS 915iS Technical Questions 3
912iS Dual Flashing Lane Light at Startup 912iS Technical Questions 8
engine miss mystery 912 / 914 Technical Questions 21
912 ULS setup in a KitFox II 912 / 914 Technical Questions 2
Follow Us

Recent Videos

Safety First!

 

To receive critical-to-safety information on your ROTAX Engine, please subscribe to
ROTAX-OWNER.COM

ROTALK News



ROTALK NEWS Episode 5
Rotax-powered Sling aircraft from The Aircraft Factory, the AVMAP Navigation and engine monitoring system, and the Rotax powered Tucano Experimental and Light-Sport Aircraft.



ROTALK NEWS Episode 4
ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) and ROTAX factory in Gunskirchen, Austria.


ROTALK NEWS Episode 3
Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations.

Prize Giveaway!


SUBSCRIBE NOW
to automatically enter this years draw!

Login