Tuning LPG?

It raises the point that it would be nice if the Gas fitters provided a small operation manual which spelled out the usual mode of operation , Listed parts used including relays - for spare parts ordering down the track and a diagram of the whole assembly. If something goes a little wrong you (or your bush mechanic ) could at least have some idea of whats what!

spring loaded screw on converter is idle mixture adjustment you can adjust it you will notice idle speed change set it in middle where runs best.
Screw @ junction is top end i.e. full load you should never need to adjust it.
Graham

Hi Troy,
Most gas converters have 2 adjusting screws, the larger is usually the sensitivity adjustment and the smaller one is the mixture adjustment. There is also a large adjuster screw in the hose from the converter to the mixer. This is the high speed adjustment.
Cheers Allan

Do these comments apply to the direct injection version as well? Mine is newly fitted and I was going to take it back this week for its first 'free' service as it is idling a bit rough but if I can fix it myself I can save the free service until it is really needed.

Thanks for the reply's as they have helped confirm some other sources I've been looking at. Would I be correct in thinking that as you adjust the mixture screw clockwise, moving it inward, that the mixture become leaner? I couldn't help but notice that you can realy smell a noticeable increase in that LPG exhaust smell as you adjust the mixture outward which would seem to indicate a richer mixture. Both extremes of this adjustment result in very rough running engine.