Nitro roc car not starting

[99Chimaera]

Hi all,
I bought a nitro nitro roc car last winter and only got round to using it recently. When I used the car last time I managed to start it and took it to a local park and used it after a short while it was beginning to cut out. I took it home and put it away, today (3 weeks later) it will not start despite having a full tank and the igniter was fully charged.
I don't what is wrong with it the car is a HSP Camper.

I would be very grateful for any suggestions

Many thanks

[99Chimaera]

Thanks for the replies,
yes the engine is a pull start type, the batteries are normal AA type rather than rechargeable and they were new when I used the car last time 4 weeks ago.
How do I prime the engine and how i check the carb for signs of coking up? The car was cutting out when it slowed down.
I am new to nitro cars having used tamiya electric models in the past. Sorry for more questions I am not mechanically minded.

Many thanks

[99Chimaera]

Thanks for that, I will try suggestions and see if it works

Many thanks