Quote Originally Posted by ghosthunter View Post
Shifting from LPG to gasoline would result in a momentary over-rich air-fuel mixture with your venturi mixer kit. Have you tried removing your air-filter and trying to switch over again?

In my setup, currently the LPG kit was tuned when the filter was new so it operates almost the same way even with the air filter removed totally. But there was a time when I was using a dirty cone filter when the LPG kit was tuned. Runs well for a short while. Removing the filter caused the engine to run rough or even stall. If it sounds familiar, try testing by removing your air filter and switch from LPG to petrol.
ok. will do. thanx GH. will keep you posted.