Sounds like a Head 'O' rings. But you better ask an expert.
GasGasUSA Dale Malasek is a pretty knowledgeable guy. (816)-809-8404....
Like
slocalspode said
Lewisports are great guys too. (209)-785-6878...
If you're from Canada
Gas Gas Pacific Dave Fair the Canadian importer/distributor of Gas Gas Trials and Enduro motorcycles. (250)-380-7137.
