Part 07 Removal of the ignition triggers and tachometer trigger ...

Introduction ...

This page contains photos of the process of removing the ignition triggers and tachometer trigger from a ROTAX 912ULS engine (built August 2006



ROTAX 912ULS ignition triggers

Image 1

Here are two ignition trigger and the single tachometer trigger ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 2

The arrows point to the pole of the triggers ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 3

And the two other triggers ...

View Larger Image ...


ROTAX 912ULS ignition triggers

Image 5

Here is a slightly better view of the ignition triggers closest to the start motor ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 6

Here's a view of the magneto housing with the triggers removed ...

View Larger Image ...


ROTAX 912ULS ignition triggers

Image 8

Here you get a good view of the various spacer and washers etc. Note that the end of the bolts have nylocs on them. This is a good idea if you wish to hold all components in place until you are ready to clean them or replace them if needs be. It makes handling and refitting the trigger assemblies a whole lot easier as the positions of the various washers and spacers are preserved ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 9

Remove the bolt that secures the two earthing cables (through the flywheel cover) to the magneto generator housing ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 10

Then remove the lower left igition triggers and tacho trigger securing the fixing and spacers with some M6 nylocs ...

View Larger Image ...

ROTAX 912ULS ignition triggers

Image 11

A clear view of spacers, washers and nylocs. Arrows point to the steel cores of the the trigger coils ...

View Larger Image ...