greetings

my 240 runs on LPG (gas) and is inclined to backfire occasionally. This
seems to be fairly normal and i've been resigned to the inconvenience it can
cause. Before anyone asks, yes the mixture has been carefully adjusted for
the best results

well, it did it again yesterday - literally blowing apart the airbox, filter
and all the associated plumbing (this was a particularly violent and loud
backfire). An expensive exercise this time round

so, i would like to replace the air filter box arrangement completely, so
that any further backfires result in less damage. It should even be possible
to arrange it so the weakest point is in the connecting hose. This will
hopefully help minimise any future damage

my question is, has anyone used a universal hose clamp type filter? I am
wondering which particular model is suitable or if in fact the filter specs
are that critical in any case

thanks for any info