It has the original carb in it. The dual fuel conversion placed another
piece that fits over the top of the carb that the air filter sits on.
The whole thing lifts off once u unscrew the usual air filter nut.

Thanks to all for the advice. "seems" to be running ok at the moment.
Definitely an issue with the LPG.. probably some solenoid's faulty.. as
for petrol... the choke isnt staying on when its hot... but it does
seem to be too muhc fuel related. Seems to be running very rich and i
think the restart issue when hot is actually related to it flooding
REALLY easy. Ill tune that and see how I go...

Thanks again for all the help

btw.. even though LPG prices have risen lately.. its still 1/3 the
price of petrol here in Sydney... so still cheaper to run. Prefer
running on petrol but saves a LOT of money when doing some long runs...

Dave