Can't remember what the stock springs were that year. Hopefully another member can help with that. However, most brands of bikes are setup for roughly 170-180lb riders from the factory. Here's a link to the 2015 manual which the 2014 is essentially the same bike:
https://drive.google.com/file/d/1h9-...ew?usp=sharing It will give you the adjustments for both Marzocchi forks and the Reiger shock. If you were asking about someone who services them, I recommend LT Racing (
https://www.lt-racing.com/) as Les has extensive knowledge of GasGas suspension.