Straight LPG won`t start after sitting

[4sum4]

My brother in laws truck finally got fixed after sitting for a few months and its straight LPG and won`t start,It comes close to starting but won`t run

[bad_religion_au]

try some aerosol in the intake

[v840]

Is it auto or manually primed? if its auto turn on the ignition and wait for a few seconds until you hear the solenoids click off, then try starting it. If it is manually primed, push the prime button with ignition on Also, if its dual fuel you should really start it using petrol as the gaskets on the fuel system may have dried out if its sat there for a while. Good luck!

[N*A*M]

make sure the solenoids are earthed properly and working. you should hear them clicking open and closed when the ignition is turned on. my buggy runs on straight gas. i normally switch the ignition on (without starting), wait a bit, ignition off then on again, wait a bit more then crank and it will start sweet.

[RaginRover]

does it still have an lpg switch in it ? a change over switch ?

If it does, try and start the car then turn the switch off and then try and start the car again - if it fires you know it is flooding - otherwise you have to trouble shoot like normal starting problems .... do we have spark air and fuel etc

Tom

[Patroler]

yea mines a bitch if its been sitting for a long time also, follow the above advice,
also with mine ive got an illuminated swich wired to the gas lock out so when i turn the ignition on i can see it light up for a few seconds (the swich has 2 positions auto-normal and off)
i then crank the motor over with no throttle and turn the lock out swich off while cranking (this would reduce the amount of gas if the motor was slightly flooded enabling an explosive mixture to be reached) when the motor coughs i hit the lock out switch back on and away we go!
Its only like that if its been sitting more than a week, any less and it starts first kick no throttle.

its a 383 chev with 2 gas research carbs also.